A Guide to the

Registration of
Chemical Waste Producers

Environmental Protection Department

Hong Kong
October 2016
Preface Contents

The purpose of this guide is to introduce the registration 1. INTRODUCTION ...........................................……3

provisions of the Waste Disposal (Chemical Waste)(General)
Regulation (the Regulation) and the procedure for 2. WHAT IS A “CHEMICAL WASTE PRODUCER”?
identifying chemical waste generation. (Sections 2 & 3) .…..........................................……..3

3. THE REGISTRATION PROCESS

This guide is for explanatory purposes only. In
(Sections 6 & 7) .......................................…………4
case of doubt, the reader is advised to consult the
Regulation itself. References to relevant sections of the
4. OTHER REQUIREMENTS
Regulation are shown in brackets following the headings.
(Section 7) ........................................................……..5
Copies of the Regulation are on sale at the Government
Publications Centre.
Appendix A SCHEDULE OF SUBSTANCES AND
Enquiries concerning the provisions of the Regulation may
CHEMICAL WASTES..………………...A1
be made to the Environmental Protection Department at:
Appendix B (I) CHEMICAL WASTE STREAMS
Address
FROM GENERAL PROCESSES
/ ACTIVITIES……………….…..…B1
Environmental Protection Department
28/F, Southorn Centre
(II) CHEMICAL WASTE STREAMS
130 Hennessy Road, Wanchai, Hong Kong.
OF SPECIFIC INDUSTRIAL /
TRADE SECTORS…………………B2
Telephone : 2838 3111
E-mail : enquiry@epd.gov.hk (III) CHEMICAL WASTE STREAMS
FROM WASTE TREATMENT
PROCESSES……………...………B19
Other relevant publications:
Appendix C SAMPLE REGISTRATION FORM…..…C1
 A Guide to the Chemical Waste Control Scheme

 Code of Practice on the Packaging, Labelling and

Storage of Chemical Wastes

The above publications are available from the website of

Environmental Protection Department.

2
1. INTRODUCTION Waste producer to identify
nature of waste

 The Waste Disposal (Chemical Waste)(General)  review industrial process,

Regulation (the Regulation) made under the Waste Disposal chemical consumption,
Ordinance (Cap. 354) provides for the control of chemical product safety data sheets
and Appendix B
waste in Hong Kong. Under the Regulation, chemical
waste producers are required to register with the Director of  arrange laboratory
Environmental Protection. This booklet provides guidance analysis of waste , if
for identifying activities that produce chemical waste and necessary
for complying with the registration requirements. Further
details of the control scheme are provided in “A Guide to
the Chemical Waste Control Scheme”.
 All chemical waste producers are required to apply for
NOT
registration before engaging in any activity that generates Does the waste
contain any SUBJECT TO
chemical waste. Failure to comply with this requirements
chemical listed in NO REGISTRATION
is an offence and liable on conviction to a fine of $200,000
Schedule 1 REQUIREMENT
and imprisonment of 6 months. (Appendix A)
?
2. WHAT IS A “CHEMICAL WASTE
PRODUCER” ? (Sections 2 & 3)
 Chemical waste is defined as any substance or thing YES
being scrap material, effluent or an unwanted substance or
byproduct arising from the application of or in the course of
any substance or chemical specified in Schedule 1 of the
Regulation if such substance or chemical occurs in such
form, quantity and concentration so as to cause pollution or
Is the waste on the
constitute a danger to health or risk of pollution to the Seek advice
list of Chemical NO
environment. from EPD
Waste Streams
 Any person who produces chemical waste or causes it (Appendix B)
to be produced will be defined as a chemical waste producer ?
and is required to register with the Director of
Environmental Protection.
 The flowchart in Figure 1 will assist you in determining
whether you are a chemical waste producer and are YES
therefore subject to the registration requirement. The
procedure generally involves the following steps:
(i) Identify the nature and characteristics of the waste SUBJECT TO
by examining the process/activity which generates REGISTRATION
the waste, by consulting product information (e.g. REQUIREMENT
safety data sheets) of the chemicals being used
and other relevant information. If necessary,
Figure 1 Procedure for identifying chemical waste generation
arrange laboratory tests to determine the
composition of the waste.

3
 (ii) Check the information against the list of chemicals  The registration forms can be downloaded online at
and substances contained in Schedule 1 to the http://www.epd.gov.hk/epd/sites/default/files/epd/tc_chi/app
Regulation, reproduced at Appendix A. If the lication_for_licences/applic_froms/files/epd129.pdf.
waste does not contain any substance named in the
 The following documents are required for registration:
Schedule, it is not a chemical waste.
(i) Completed application form;
(iii) If the waste contains one or more chemical or (ii) Copy of the identity card/certificate of
substance in the Schedule, you need to check incorporation and business registration
whether the waste is listed in Appendix B (Parts I certificate of the applicant; and
to III). If yes, the waste is a chemical waste and (iii) Any other supporting document, e.g.
you should proceed with the registration process. authorization letter.
If the waste is generated from a process or activity STEP 1 - Completing the registration form
which is not included in Appendix B (e.g. a new
process/technology), you should contact  Each chemical waste producer requires one application
Environmental Protection Department (EPD) for for registration of each location or premises of the
guidance. establishment where chemical waste is produced.

(iv) If you are unclear or having difficulty in  Please complete the form clearly by typing or writing in
classifying your waste, you should contact EPD black or blue ink. If there is no sufficient space in any
for guidance. column to fill in all the information, you may use separate
sheet(s) of paper, which are numbered and duly signed by
 In addition to the manufacturing and service industries, the applicants.
the following establishments/activities may also produce
chemical waste:-  The information to be provided is set out below (see the
sample registration form at Appendix C):-
 Trading firms which may produce off-specification, Items 1-6: Particulars of waste producer
expired or damaged products containing chemicals
listed in the Schedule;  Enter full particulars of the waste producer. The
applicant may be an individual, a company, a partnership or
 Construction, building or renovation contractors
an organisation. For a company, partnership or
using chemicals;
organisation, its full name should be entered
 Building demolition work producing asbestos
waste; Items 7-8: Particulars of waste generating establishment
 Private testing laboratories;  Enter the name of the establishment in full and the
Hospitals with medical/research laboratories; business registration certificate number, if applicable.
 Educational establishments such as schools, Item 9: Nature of business
colleges, tertiary institutions with science
 Enter the nature of business of the establishment(s).
laboratories;
For an industrial establishment, the major product type(s)
 Government departments. and the nature of the process(es) involved should also be
specified. For example, manufacture of metal toys -
3. THE REGISTRATION PROCESS electroplating. Refer to Appendix B for description of
(Sections 6 & 7) industrial/trade sectors and processes.

 The registration process involves two simple steps:-

Step 1: complete a registration form and return it to EPD.

Step 2: pay the registration fee.

4
Item 10: Waste types and assign a Waste Producer Number to each successful
applicant. This number is a unique reference for each
 Set out the major types of chemical waste generated or
waste producer and should be quoted in all future
expected to be generated at the establishment(s). For
correspondence with EPD and also on other notices/forms
example, spent acid, solvent waste, waste lubrication oil.
(e.g. trip-tickets). Where an application is found not to be
The description should cover chemical wastes generated on
related to chemical waste, EPD will also issue a written
both a regular or occasional basis.
confirmation to that effect and no registration is required.
Items 11-15: Address and contact person
 Enter the address(es) of the establishment(s) and full 4. OTHER REQUIREMENTS (Section 7)
particulars of the contact person(s) who would be
responsible for day-to-day supervision.  Registration is an one-off requirement and not subject
Items 16-20: Declaration to renewal. However, each registered waste producer has
the obligation to inform EPD as soon as practicable of any
 If the waste producer is an individual, the declaration change in the particulars of the registration, for example,
must be filled by the individual who applies for registration. changes in contact person, telephone number and
In the case of a company or an organisation, this part must correspondence address. Such notifications should be
be filled by a person authorized by the company or the made in writing within two weeks of the change. No
organisation, as the case may be. If the waste producer is a payment is required. Failure to notify EPD is an offence
partnership, it should be filled by one of the partners. under the Regulation and is liable to a fine of $10,000.
Documentary proof of authorization is required.
 Registration is not transferable and will only be valid in
 The completed form should be returned to EPD at the respect of the person and the waste producing premises
address shown in Appendix 3 of the following website: being registered. If either the name of the registered waste
http://www.epd.gov.hk/epd/sites/default/files/epd/tc_chi/app producer, or the address of the waste producing premises is
lication_for_licences/applic_froms/files/epd129.pdf. changed, the registered waste producer is required to inform
STEP 2 - Payment of registration fee EPD so that the original registration may be cancelled. No
fee is required for the cancellation of the original
 Advance payment of the $265 application fee can be registration. However, a new application with a current
made in parallel with submission of the registration form, registration fee is required for the registration of the new
preferably by cheque or EPS. However, for application name or the new waste producing premises.
submitted through mail, only cheque will be accepted.
Cheque of payment should be crossed and made payable to  Upon registration, EPD may issue a notice requesting
“The Government of Hong Kong Special Administrative you to furnish more information on the wastes you produce.
Region”. Upon receipt of the registration form, EPD will According to section 23B of the Waste Disposal Ordinance,
issue an acknowledgement note by post. You may be you will be required to furnish the information within the
requested to provide more information, where necessary. period specified in the notice. Any person who fails to
Once the application is complete, a Demand Note will be comply with the requirement or provides inaccurate/false
issued to you (if advance payment of the registration fee is information or omits information commits an offence and is
not made) requesting payment of the registration fee within liable to a fine of $100,000.
a specific period, normally two weeks. Payment should be  Applicant for registration as a chemical waste producer
made according to the instructions as stipulated on the at a new location or premises is reminded to inform EPD of
Demand Note. any previous Waste Producer Registration that you no
If the payment is not received within the specified period, longer wish to retain by completing Appendix 1 of the
your application will be cancelled and a new application following link:
will have to be submitted. http://www.epd.gov.hk/epd/sites/default/files/epd/tc_chi/ap
plication_for_licences/applic_froms/files/epd129.pdf.
 After payment, EPD will issue a written confirmation

5
APPENDIX A

SCHEDULE OF SUBSTANCES AND CHEMICALS

Part A Code Organo mercury compounds…………………………………….86

Organo tin compounds…………………………………………..86
Paints…………………………………………………………….53
Any substance to which the Antibiotics Ordinance
Pesticides (as defined in the Register referred to in
(Cap. 137) applies……………………….……………………30
Section 4(a) of the Pesticides Ordinance (Cap. 133))…….....46
Asbestos…………………………………………………………09
Pharmaceutical products and medicines, NES…………………..40
Dangerous drugs (as defined in the Dangerous Drugs
Phosphorus compounds excluding phosphates………………….68
Ordinance (Cap. 134))…………………………..…………...10
Selenium compounds……………………………………………66
Dangerous goods, category 2, NES…………………………...02
As defined in the
Silver compounds………………………………………………..66
Dangerous goods, category 6, NES…………………………...04
Dangerous Goods
Sulphides………………………………………………………...98
Dangerous goods, category 9, NES…………………………...14
Ordinance (Cap.295)
Thallium and its compounds…………………………………….66
Dibenzofurans………………………………………………...19
Tin compounds…………………………………………………..66
Dioxins…………………………………………………………..19
Vanadium compounds…………………………………………...66
Pesticides (as defined in the Register referred to in
Zinc compounds…………………………………………………66
Section 4(b) of the Pesticides Ordinance (Cap. 133))………..06
Poisons (Part I) (as defined in the Pharmacy and
Acids, alkalis and corrosive compounds
Poisons Ordinance (Cap. 138))……………………...……….20
Polychlorinated biphenyls……………………………………….29
Acetic acid above 10% acetic acid by weight…………………...48
Acids or acidic solutions, NES with acidity equivalent
Part B
to above 5% nitric acid by weight……………………………48
Ammonia solution above 10% ammonia by weight…………….58
Antimony and its compounds…………………………………...66
Bases or alkaline solutions, NES, with alkalinity
Arsenic compounds……………………………………………...66
equivalent to above 1% sodium hydroxide by weight…...…..58
Barium compounds……………………………………………...66
Chromic acid above 1% chromic acid by weight……………..78
Beryllium and its compounds…………………………………...66
Fluoboric acid above 5% fluoboric acid by weight………...48
Boron compounds……………………………………………….66
Formic acid above 10% formic acid by weight……………….48
Cadmium and its compounds……………………………………66
Hydrochloric acid above 5% hydrochloric acid
Chromium bearing solid tannery waste……………………….56
by weight……………………………………………………..48
Chromium and its compounds, NES…………………………….66
Hydrofluoric acid above 0.1% hydrofluoric acid
Cobalt and its compounds……………………………………….66
by weight………………………………………….………….48
Copper compounds/copper etchant…………………………..66/76
Hydrogen peroxide solution above 8% hydrogen
Cyanides…………………………………………………………96
peroxide by weight………………………...…………………55
Dangerous goods, category 3, NES…………………………...38
Nitric acid above 5% nitric acid by weight……………………...48
Dangerous goods, category 4, NES…………………………...36
As defined
in the Perchloric acid above 5% perchloric acid by weight……………48
Dangerous goods, category 5, NES…………………………...33
Dangerous Goods Phosphoric acid above 5% phosphoric acid by weight…………48
Dangerous goods, category 7, NES…………………………...35
Ordinance Potassium hydroxide solution above 1% potassium
Dangerous goods, category 8, NES…………………………...34
(Cap.295)
hydroxide by weight……………………………………….58
Dangerous goods, category 10, NES………………………….39
Potassium hypochlorite solution above
Halogenated organic solvents and compounds………………….49
5% active chlorine……………………………………………88
Lead and its compounds…………………………………………66
Sodum hydroxide solution above 1% sodium
Manganese and its compounds………………………………..66
hydroxide by weight……………………………………….58
Mercury and its compounds……………………………………..66
Sodium hypochlorite solution above 5% active chlorine……….88
Mineral oils employed for engine lubrication…………………...73
Sulphuric acid above 5% sulphuric acid by weight……………..48
Mineral oils, NES………………………………………………..63
Nickel and its compounds……………………………………….66
Non-halogenated organic solvents and compounds……………..43
Organo lead compounds…………………………………………86 NES = Not elsewhere specified

A-1
 APPENDIX B (I)

CHEMICAL WASTE STREAMS FROM GENERAL PROCESSES / ACTIVITES

GENERAL PROCESS PROC DESCRIPTION TYPICAL PROCESS CHEMICAL WASTE STREAM WASTE
CODE CODE
CHEMICAL TESTING

Chemical testing T03 Analysis or testing to ensure Acid Spent acid T03 L48
quality Alkali Spent alkali T03 L58
Organic solvent Spent halogenated solvent T03 L49
Spent non-halogenated solvent T03 L43
Heavy metal compounds Spent solution containing heavy metals T03 L66
Toxic compounds Waste containing chemicals T03 *
under Schedule 1

MAINTENANCE

Filter replacement F03 Replacement of spent filter Spent filter containing heavy metals F03 S66
cartridge

Maintenance, battery M31 Maintenance of batteries Sulphuric acid Spent acidic electrolyte M31 L48
Potassium hydroxide Spent alkaline electrolyte M31 L58
Lead-acid battery Scrap battery cell containing M31 S66
Battery from electric vehicle heavy metals

Maintenance, M32 Maintenance of (vehicles) Asbestos waste M32 S09

brake/clutch brake/clutch linings

Maintenance, M33 Maintenance of equipment/ Asbestos waste M33 S09

insulation/diaphragm structure containing asbestos
(e.g. asbestos diaphragm,
heat insulators, etc.)

Maintenance, n.e.s. M40 Other maintenance activities Waste containing chemicals M40 *
producing chemical wastes under Schedule 1

Oil retrofilling (renewal O01 Oil replacement from processing Lubricating oil Spent lubricating oil O01 L73
& drainage) machines Hydraulic oil Spent mineral oil O01 L63
Oil retrofilling from transformers Cooling oil Spent mineral oil O01 L63
and cooling units Polychlorinated biphenyls (PCBs) Spent polychlorinated biphenyls O01 L29
dielectric fluid dielectric fluid

Mechanical machining M03 General mechanical machining Cutting oil/Cutting fluid Spent mineral oil M03 L63

Stripping, S32 Mechanical stripping of Residue containing heavy metals S32 M66
mechanical/manual equipment coatings

Stripping, metal S33 Chemical stripping of metallic Acid Spent acidic solution S33 L48
layer Cyanide Spent solution containing cyanide S33 L96

Stripping, n.e.s. S40 Other stripping process Waste containing chemicals S40 *
producing chemical wastes under Schedule 1

Cleaning C06 Equipment cleaning Acid Spent acidic solution C06 L48
Alkali Spent alkaline solution C06 L58
Organic solvent Spent halogenated solvent C06 L49
Spent non-halogenated solvent C06 L43

DAMAGED, EXPIRED, REJECTED, SCRAP & UNWANTED CHEMICALS OR PRODUCTS

DAMAGED, EXPIRED, Z00 Waste containing chemicals Z00 *

REJECTED, SCRAP & under Schedule 1
UNWANTED
CHEMICALS OR
PRODUCTS

* Refer to remarks on page B-20

(n.e.s.= not elsewhere specified)

B-1
APPENDIX B (II)

CHEMICAL WASTE STREAMS OF SPECIFIC INDUSTRIAL / TRADE SECTORS

SECTOR INDUSTRY TYPE PROCESS PROC TYPICAL PROCESS WASTE STREAM WASTE
CODE CODE CHEMICAL CODE
311-3 FOOD MANUFACTURING & BEVERAGE INDUSTRIES

3111 Slaughtering, preparing and Chemical testing T03 Acid Spent acid T03 L48
preserving meat Alkali Spent alkali T03 L58
3112 Dairy products Organic solvent Spent halogenated solvent T03 L49
3113 Canning, preserving of fruits Spent non-halogenated solvent T03 L43
and vegetables
3114 Canning, preserving and Processing/Storage tank T01 Acid Spent acid T01 L48
processing of fish and cleaning Alkali Spent alkali T01 L58
crustaceans Organic solvent Spent non-halogenated solvent T01 L43
3115 Vegetable and imitation
animal oils and fats Cleaning of containers C06 Sodium hydroxide Spent alkali C06 L58
3116 Grain mill products
3117 Bakery products Process in common with (Waste streams typical to
3118 Vermicelli, noodles and printing industry (342) printing industry)
similar farinaceous products
3121 Sugar factories and refineries
3122 Cocoa, chocolate and sugar
confectionery
3123 Prepared animal feeds
3129 Food products, n.e.c.
3131 Distilling, rectifying and
blending spirits
3132 Breweries and manufacture
of malt liquors and malt
323 LEATHER AND LEATHER PRODUCTS, EXCEPT FOOTWEAR AND WEARING APPAREL

3231 Tanneries and Leather Finishing Dry cleaning D05 Organic solvent Spent halogenated solvent D05 L49
3232 Products of leather and Sludge containing halogenated D05 M49
leather substitutes, except solvent
footwear and wearing apparel Solvent cleaning C06 Organic solvent Spent halog C06 L49
3233 Handbags (excl. rattan handbag, enatednon-halogenated
Spent solvent solvent C06 L43
straw handbag, plastic
shopping bags) Liming L03 Calcium hydroxide, Spent alkaline slurry L03 M58
sodium sulphide

Acid pickling A04 Sulphuric acid Spent acid A04 L48

Chrome tanning T02 Chromium compound, Spent solution containing T02 L66
chromium
bicarbonate Sludge containing chromium T02 M66

Retanning R03 Chromium compound, Spent solution containing R03 L66

chromium
bicarbonate Sludge containing chromium R03 M66

Lacquer coating C32 Thinner, lacquer Surplus lacquer C32 M53

Paint spraying P01 Paint, organic solvent Surplus paint P01 M53

Shaving and cutting S07 Chromium containing tannery S07 S56

offcuts

324 FOOTWEAR, EXCEPT RUBBER, PLASTIC AND WOODEN FOOTWEAR

3240 Footwear, except rubber, Adhesive application A06 Organic solvent, Surplus flammable adhesive A06 M33
plastic and wooden footwear adhesive

(n.e.c.= not elsewhere classified)

B-2
 APPENDIX B (II)

SECTOR INDUSTRY TYPE PROCESS PROC TYPICAL PROCESS WASTE STREAM WASTE
CODE CODE CHEMICAL CODE
328 TEXTILES

3281 Bleaching and dyeing Chemical testing T03 Acid Spent acid T03 L48
3282 Textile stencilling and printing Alkali Spent alkali T03 L58
3283 Textile finishing, n.e.c. Organic solvent Spent halogenated solvent T03 L49
Spent non-halogenated solvent T03 L43

Scouring/Kiering S01 Sodium hydroxide Spent alkali S01 L58

Organic solvent Spent halogenated solvent S01 L49
Spent non-halogenated solvent S01 L43

Solvent cleaning C06 Organic solvent Spent halogenated solvent C06 L49
Spent non-halogenated solvent C06 L43

Mercerization M04 Sodium hydroxide Spent alkali M04 L58

Acid carbonizing A02 Sulphuric acid Spent acid A02 L48

Process in common with (Waste streams typical to
printing industry (342) printing industry)

341 PAPER AND PAPER PRODUCTS

3412 Containers and boxes of Chemical testing T03 Acid Spent acid T03 L48
paper and paperboard Alkali Spent alkali T03 L58
3419 Articles of pulp, paper and Organic solvent Spent halogenated solvent T03 L49
paperboard n.e.c. Spent non-halogenated solvent T03 L43

Surface coating C32 Mineral pigments, binder, Spent coating solution C32 L66
defoaming agent containing heavy metals

Process in common with (Waste streams typical to

printing industry (342) printing industry)

342 PRINTING, PUBLISHING AND ALLIED INDUSTRIES

3421 Newspaper printing Film developing P31 Developer, hydroxide Spent alkaline developer P31 L58
3422 Job printing
3429 Printing, publishing and Film fixing P32 Metabisulphite, acetic Spent acidic solution containing P32 L66
allied industries, n.e.c acid silver

Photographic reduction P35 Potassium ferricyanide, Spent solution containing silver P35 L66
(bleaching) thiosulphate

Photographic intensification P33 Developer, Spent solution containing P33 L66

(physical deposition) mercury compound mercury

Photographic intensification P34 Developer/Ammonia, Spent solution containing P34 L66

(oxidation) mercuric chloride mercury

Swirl coating of resist C34 Dichromated colloids Surplus chemicals containing C34 L66
(photo-resist, etch-resist, chromium
etc) Organic solvent, binder Surplus materials with solvent C34 L33

Pattern developing of etch P03 Developer Spent alkaline solution P03 L58
resist

Chemical hardening of etch C04 Chromium compounds Spent solution containing C04 L66
resist chromium

Etching of copper plate E31 Acid/Ferric chloride Spent copper etchant E31 L76

Etching of metal plate E34 Acid Spent etchant E34 L66

Offset printing plate P03 Developer Spent developer P03 L58

developing

(n.e.c.= not elsewhere classified)

B-3
APPENDIX B (II)

SECTOR INDUSTRY TYPE PROCESS PROC TYPICAL PROCESS WASTE STREAM WASTE
CODE CODE CHEMICAL CODE
Flexographic plate etching E36 Organic solvent Spent halogenated solvent E36 L49
Spent non-halogenated solvent E36 L43

Etch-resist removal S31 Alkali Spent alkaline solution S31 L58

Chromium plating P42 Acid, chromic acid Spent chromic acid solution P42 L78
Cleaning of printing plates, C06 Gasoline, kerosene Spent flammable liquids C06 L33
printing rollers, tools etc Organic solvent Spent halogenated solvent C06 L49
Spent non-halogenated solvent C06 L43

Gravure printing P71 Organic solvent, ink Surplus flammable ink slurry #P_ M33
Letterpress printing P72 Fountain solution Spent fountain solution from #P_ L33
Rotary printing P74 offset printing
Silk screen printing P75
Othe printing methods P80 # P_ refers to the
corresponding process code on
the left column

351-2 CHEMICALS AND CHEMICAL PRODUCTS

3511 Basic industrial chemicals Compouding of industrial M05 Acid, Mixing residue containing acid M05 L48
except fertilizers Chemicals (e.g. dyes, Alkali, Mixing residue containing alkali M05 L58
3512 Fertilizers and pesticides pigments, pesticides, Organic solvent, Mixing residue containing M05 L49
3513 Synthetic resins, plastic materials plating chemicals, paints, halogenated solvent
and synthetic fibres except glass varnishes, etc.) Mixing residue containing M05 L43
3521 Paints, varishes and lacquers non-halogenated solvent
3522 Drugs and medicines Active ingredients Mixing residue containing M05 L06
3523 Soap and cleaning preparations, pestcides defined in Section
perfumes, cosmetics and other 4(b) of Cap.133
toilet preparations Mixing residue containing M05 L46
pestcides defined in Section
4(a) of Cap.133
3524 Candles Mixing residue containing heavy M05 L66
metals
3529 Chemical products, n.e.c. Mixing residue containing M05 L96
cyanide

Cleaning of scrap plastics C06 Sodium hydroxide Spent alkali C06 L58
Polymerisation of plastic P07 Monomer, organic Unreacted monomer/ P07 L33
monomer solvent, catalyst intermediate
Spent halogenated solvent P07 L49
Spent non-halogenated solvent P07 L43
Tarry material P07 M43
Spent catalyst containing heavy P07 S66
metals

Screening of milled pigment S02 Screened residue containing S02 S66

(paint preparations) heavy metals

Chemical synthesis C05 Organic and Reactor residue containing C05 *

(alkylation, esterification, inorganic chemicals under Schedule 1
cyclisation, sulphonation, Chemicals (Organic
etc) solvents, toxic and
corrosive materials,
pharmaceutical
ingredients, etc.)
Solvent extraction S16 Organic solvent Spent halogenated solvent S16 L49
Spent non-halogenated solvent S16 L43

Distillation D04 Distillation residue containing D04 *

chemicals under Schedule 1

Filling/Packaging of F02 Pharmaceutical Contaminated spillages F02 L40

pharmaceutical products ingredients

* Refer to remarks on page B-20

(n.e.c.= not elsewhere classified)

B-4
 APPENDIX B (II)

SECTOR INDUSTRY TYPE PROCESS PROC TYPICAL PROCESS WASTE STREAM WASTE
CODE CODE CHEMICAL CODE
Preparation of toilet and M05 Acid Mixing residue containing acid M05 L48
cleaning products Alkali Mixing residue containing alkali M05 L58
(including cosmetics & Hypochlorite Mixing residue containing M05 L88
perfumes) hypochlorite
Organic solvent Mixing residue containing M05 L43
non-halogenated solvent

Gas production G02 Calcium carbide, Spent catalyst containing heavy G02 S66
catalyst metals
Purification of produced gas P09 Acidic residue P09 S48
Unreacted oxidising agent P09 S35

Contact process O02 Sulphur, catalyst Spent catalyst containing heavy O02 S66
metals

Tank/reactor/boiler cleaning T01 Acid Spent acid T01 L48

Alkali Spent alkali T01 L58
Organic solvent Spent halogenated solvent T01 L49
Spent non-halogenated solvent T01 L43

Plant maintenance of M33 Asbestos waste M33 S09

insulations and electrolytic
diaphragm

Chemical testing T03 Acid Spent acid T03 L48

Alkali Spent alkali T03 L58
Organic solvent Spent halogenated solvent T03 L49
Spent non-halogenated solvent T03 L43
Heavy metal Spent solution containing heavy T03 L66
compounds metals
Toxic compounds Waste containing chemicals T03 *
under Schedule 1

354 PRODUCTS OF PETROLEUM AND COAL

3540 Miscellaneous products of Tank cleaning T01 Organic solvent Spent halogenated solvent T01 L49
petroleum and coal Spent non-halogenated solvent T01 L43

Chemical testing T03 Organic solvent Spent halogenated solvent T03 L49
Spent non-halogenated solvent T03 L43

Cleaning of petrol interceptor C06 Mineral oil Spent mineral oil C06 L63

355 RUBBER PRODUCTS

3551 Tyre retreading and manufacture Compounding M05 Mineral pigment, Mixing residues containing heavy M05 L66
of rubber tube additives metals

3552 Rubber footwear Antitack coating C32 Lead stearate Spent antitack agent C32 L66
3553 Rubber toys
3559 Rubber products, n.e.c. Solvent cleaning C06 Organic solvent Spent halogenated solvent C06 L49
Spent non-halogenated solvent C06 L43

Process in common with (Waste streams typical to mould

mould making (3871) making)

356 PLASTIC PRODUCTS

3561 Plastic flowers and foliage Fabric application F01 Organic solvent, Spent halogenated solvent F01 L49
binder
3562 Plastic toys (e.g. fibre glass coating) Spent non-halogenated solvent F01 L43
3569 Plastic products, n.e.c.

Paint spraying P01 Organic solvent, paint Surplus paint P01 M53

Paint stripping S34 Organic solvent Spent halogenated solvent S34 L49
Spent non-halogenated solvent S34 L43

* Refer to remarks on page B-20

(n.e.c.= not elsewhere classified)

B-5
APPENDIX B (II)

SECTOR INDUSTRY TYPE PROCESS PROC TYPICAL PROCESS WASTE STREAM WASTE
CODE CODE CHEMICAL CODE
Solvent cleaning C06 Organic solvent Spent halogenated solvent C06 L49
Spent non-halogenated solvent C06 L43

Processes in common with (Waste streams typical to

printing industry (342) and printing industry and mould
mould making (3871) making)

362 NON-METALLIC MINERAL PRODUCTS, EXCEPT PRODUCTS OF PETROLEUM AND COAL

3620 Glass and glass products Polishing P06 Polishing oil/Coolant Spent mineral oil P06 L63
(except spectacles, optical
lenses)
Glass etching E33 Glass etchant Spent glass etchant E33 L48

Resist stripping S31 Organic solvent Spent halogenated solvent S31 L49
Spent non-halogenated solvent S31 L43

Cleaning C06 Alkaline cleaner Spent alkaline solution C06 L58

Organic solvent Spent halogenated solvent C06 L49
Spent non-halogenated solvent C06 L43

Sensitizing S06 Stannous chloride Spent solution containing heavy S06 L66
metals

Metallizing C03 Silver nitrate, alkali, Spent solution containing heavy C03 L66
(silver coating) formalin metals

Metallizing C03 Copper sulphate, Spent solution containing heavy C03 L66
(copper coating) reducing agent metals

Protective layer coating C40 Coating paint, Surplus paint C40 M53
organic solvent

371-2 BASIC METAL INDUSTRIES

3710 Iron and steel basic industries Smelting and casting C60 Alloying elements, Casting slag containing heavy C60 S66
flux metals

Metal rolling R05 Rolling oil/Coolant Spent mineral oil R05 L63
Bottom sludge containing mineral R05 M63
oil

Alkaline degreasing D33 Sodium hydroxide Spent alkali D33 L58

Bottom sludge containing mineral D33 M63
oil

Acid pickling A04 Acid Spent acid A04 L48

Bottom sludge with metallic A04 M66
oxides

Sensitizing S06 Zinc chloride, Spent solution containing zinc S06 L66
ammonium chloride

3721 Non-ferrous metal basic Smelting and casting C60 Alloying elements, Casting slag containing heavy C60 S66
industries, copper flux metals

Metal rolling R05 Rolling oil/Coolant Spent mineral oil R05 L63
Bottom sludge containing mineral R05 M63
oil

Alkaline degreasing D33 Alkaline solution Spent alkaline solution D33 L58

Desmutting D02 Acid, dichromate Spent chromic acid solution D02 L78

Acid pickling A04 Sulphuric acid Spent acid A04 L48

Bright dipping B02 Hydrochloric acid Spent acid B02 L48

(n.e.c.= not elsewhere classified)

B-6
 APPENDIX B (II)

SECTOR INDUSTRY TYPE PROCESS PROC TYPICAL PROCESS WASTE STREAM WASTE
CODE CODE CHEMICAL CODE
3722 Non-ferrous metal basic Smelting and casting C60 Alloying elements, flux Casting slag containing heavy C60 S66
industries, aluminium metals
Alkaline degreasing D33 Alkali Spent alkaline solution D33 L58
Solvent degreasing D33 Organic solvent Spent halogenated solvent D33 L49
Spent non-halogenated solvent D33 L43
Desmutting D02 Acid, dichromate Spent chromic acid solution D02 L78
Anodizing A08 Sulphuric acid Spent acid A08 L48
Chromic acid mixture Spent chromic acid solution A08 L78
Other process in common (Waste streams typical to
with electroplating industry electroplating industry)
(3818)

3723 Non-ferrous metal basic Smelting and casting C60 Alloying elements, flux Casting slag containing heavy C60 S66
industries, n.e.c. metals
Metal rolling R05 Rolling oil/Coolant Spent mineral oil R05 L63
Bottom sludge containing R05 M63
mineral oil
Precipitation of precious P08 Sodium hydroxide, Spent alkaline filtrate containing P08 L66
metals zinc powder heavy metals
Ferrous salt Spent acidic filtrate P08 L48
Electrolytic extraction of E02 Residual acidic solution E02 L48
precious metals Residual alkaline solution E02 L58
Recycling of batteries Z00 Waste battery Acidic electrolyte Z00 L48
Alkaline electrolyte Z00 L58
Scrap cathode or anode Z00 S66
materials
containing heavy metal
compounds
Recycling of tin, solder Z00 Waste mineral oil Z00 L63
380-1 FABRICATED METAL PRODUCTS, EXCEPT MACHINERY AND EQUIPMENT

3801 Metal toys Acid pickling A04 Acid Spent acid A04 L48
3802 Nails, screws and hinges
3803 Cans and domestic utensils Dewaxing D03 Alkaline cleaner Spent alkaline solution D03 L58
of metal, except aluminium
3804 Vacuum flasks Alkaline degreasing D33 Alkali Spent alkaline solution D33 L58
3810 Cutlery Cyanide Spent solution containing D33 L96
3811 Hand tools and general cyanide
3812 hardware
Furniture and fixtures, Electrodegreasing D32 Acid Spent acidic solution D32 L48
primarily of metal Alkali Spent alkaline solution D32 L58
3813 Structural metal products Cyanide Spent solution containing D32 L96
3814 Aluminium wares cyanide
3815 Pressure & kerosene stoves Solvent degreasing, D33 Organic solvent Spent halogenated solvent D33 L49
and lanterns and accessories soaking Spent non-halogenated solvent D33 L43
3816 Torches, lamps and parts
except torch bulbs Vapour degreasing D34 Organic solvent Spent halogenated solvent D34 L49
3817 Metal wrist watchbands Spent non-halogenated solvent D34 L43
3819 Fabricated metal products,
except machinery and Metal surface sensitizing S06 Acid Spent acid S06 L48
equipment, n.e.c.
Phosphating C45 Phosphoric acid Spent acid C45 L48
Lacquer coating C32 Organic polymer Spent solution containing C32 L49
halogenated organics
Surface hardening, S20 Cyanide Spent cyanide bath S20 L96
cyaniding

(n.e.c.= not elsewhere classified)

B-7
APPENDIX B (II)

SECTOR INDUSTRY TYPE PROCESS PROC TYPICAL PROCESS WASTE STREAM WASTE
CODE CODE CHEMICAL CODE
Surface hardening, oil S21 Quenching oil Spent mineral oil S21 L63
quenching

Paint spraying P01 Paint, organic solvent Surplus paint P01 M53

Paint stripping S34 Organic solvent Spent halogenated solvent S34 L49
Spent non-halogenated solvent S34 L43

Electropolishing P05 Sulphuric acid, nitric Spent acid P05 L48

acid

Mechanical machining M03 Cutting oil/cutting Spent mineral oil M03 L63
fluid
Metal parts cleaning C06 Kerosene, diesel, etc. Spent flammable liquid C06 L33

Process in common with (Waste streams typical to printing

printing (342) and and electroplating industries)
electroplating (3818)
industries

3818 Buffing, polishing and Acid pickling A04 Acid Spent acid A04 L48
electroplating
Desmutting D02 Acid Spent acid D02 L48

Dewaxing D03 Alkaline cleaner Spent alkaline solution D03 L58

Barrel degreasing D31 Degreasing agent, Spent solution containing cyanide D31 L96
cyanide

Alkaline degreasing D33 Alkali Spent alkaline solution D33 L58

Cyanide Spent solution containing cyanide D33 L96

Electrodegreasing D32 Acid Spent acidic solution D32 L48

Alkali Spent alkaline solution D32 L58
Cyanide Spent solution containing cyanide D32 L96

Solvent degreasing D33 Organic solvent Spent halogenated solvent D33 L49
Spent non-halogenated solvent D33 L43

Cyanide dipping D53 Cyanide Spent cyanide solution D53 L96

Acid dipping D51 Acid Spent acid D51 L48

Cadmium plating P41 Plating chemicals Spent chromic acid bath in P42 L78
Chromium plating P42 chromium plating
Black chromium plating P43
Copper plating P44 Spent plating bath containing #P_ L66
Gold plating P46 heavy metals
Lacquer plating P47
Nickel plating P48 Spent plating bath containing #P_ L96
cyanide
Black nickel plating P49
Palladium plating P51 Spent plating bath containing #P_ L43
Palladium nickel plating P52 non-halogenated organics
Rhodium plating P53
Silver plating P54 Plating bath sludge containing #P_ M66
Tin plating P55 heavy metals
Tin-cobalt plating P56
Bronze plating (tin-copper) P57 # P_ refers to the corresponding
Solder plating (tin-lead) P58 process code on the left column
Tin-nickel plating P59
Zinc plating P60
Brass plating (zinc-copper) P61
Other plating, n.e.s. P70

Renewal of filter cartridge F03 Filter cartridge containing heavy F03 S66
from plating baths metals

(n.e.c.= not elsewhere classified)

B-8
APPENDIX B (II)

SECTOR INDUSTRY TYPE PROCESS PROC TYPICAL PROCESS WASTE STREAM WASTE
CODE CODE CHEMICAL CODE
Electropolishing P05 Sulphuric acid, nitric Spent acid P05 L48
acid

Passivation C44 Nitric acid Spent acid C44 L48

Bright dipping D51 Acid Spent acid D51 L48

Bronze dipping C42 Acid Spent acid C42 L48

Lacquer coating C32 Organic compounds Spent bath containing C32 L49
halogenated organic compounds

Sulphide dipping C41 Potassium Spent bath containing sulphide C41 L98
(Antique finish) polysulphides

Phosphating C45 Phosphoric acid Spent acid C45 L48

Reject/Rack stripping S33 Nitric acid Spent acid S33 L48

Cyanide, oxidizing Spent solution containing cyanide S33 L96
agent

Plate/strip-resist stripping S31 Alkali Spent alkaline solution S31 L58

Organic solvent Spent halogenated solvent S31 L49
Spent non-halogenated solvent S31 L43

Oxide etching for anodizing E35 Alkali Spent alkali E35 L58
Acid, chromic acid Spent chromic acid solution E35 L78

Anodizing A08 Sulphuric acid Spent acid A08 L48

Chromic acid mixture Spent chromic acid solution A08 L78

Pigment colouring of C07 Metal salt Spent solution containing heavy C07 L66
anodized layer metals

Electrolytic colouring of C08 Metal salt Spent solution containing heavy C08 L66
anodized layer metals

Sealing after anodizing S04 Metal salt Spent solution containing heavy S04 L66
metals

Paint spraying P01 Paint, organic solvent Surplus paint P01 M53

Paint application P02 Paint, organic solvent Surplus paint P02 M53

Paint stripping S34 Organic solvent Spent halogenated solvent S34 L49
Spent non-halogenated solvent S34 L43

Surface roughening S22 Chromic acid Spent chromic acid solution S22 L78
(plastic)

Activation for electroless A05 Palladium and tin salt Spent solution containing heavy A05 L66
plating metals

Acceleration for electroless A01 Acid Spent acid A01 L48

plating

Electroless nickel plating P50 Plating chemicals Spent plating bath containing P50 L66
nickel
Electroless copper plating P45 Spent plating bath containing P45 L66
copper
Plating bath sludge containing P50 M66
nickel
Plating bath sludge containing P45 M66
copper

Vacuum plating V01 Metallic compounds Non-volatile residue containing V01 S66
heavy metals

(n.e.c.= not elsewhere classified)

B-9
 APPENDIX B (II)

SECTOR INDUSTRY TYPE PROCESS PROC TYPICAL PROCESS WASTE STREAM WASTE
CODE CODE CHEMICAL CODE
382 OFFICE, ACCOUNTING AND COMPUTING MACHINERY

3821 Office machinery and Solvent cleaning C06 Organic solvent Spent halogenated solvent C06 L49
equipment, except computing Spent non-halogenated solvent C06 L43
and accounting machinery
3822 Computing machinery Solder flux application S12 Flux, organic solvent Spent halogenated solvent with S12 L49
and equipment solder flux
Spent non-halogenated solvent S12 L43
with solder flux

Soldering S15 Solder & flux, tinning Spent mineral oil with solder flux S15 L63
oil

Vapour degreasing D34 Organic solvent Spent halogenated solvent D34 L49
Spent non-halogenated solvent D34 L43

383 RADIO, TELEVISION AND COMMUNICATION EQUIPMENT AND APPARATUS

3831 Transistorized radios Solvent cleaning C06 Organic solvent Spent halogenated solvent C06 L49
3832 Television receivers and Spent non-halogenated solvent C06 L43
communication equipment
3833 Sound reproducing and Solder flux application S12 Flux, organic solvent Spent halogenated solvent with S12 L49
equipment and apparatus solder flux
3834 Records and magnetic tapes Spent non-halogenated solvent S12 L43
with solder flux

Soldering S15 Solder & flux, tinning Spent mineral oil with solder flux S15 L63
oil

Vapour degreasing D34 Organic solvent Spent halogenated solvent D34 L49
Spent non-halogenated solvent D34 L43

384 ELECTRONIC PARTS AND COMPONENTS

3840 Electronic parts and Alkaline cleaning C06 Alkali Spent alkaline solution C06 L58
components

Electrodegreasing D32 Acid Spent acid D32 L48

Solvent degreasing D33 Organic solvent Spent halogenated solvent D33 L49
Spent non-halogenated solvent D33 L43

Acid pickling A04 Acid Spent acid A04 L48

Screen printing P75 Ink, organic solvent Surplus ink containing P75 M49
halogenated solvent
Surplus ink containing P75 M43
non-halogenated solvent
Surplus ink containing heavy P75 M66
metals

Pattern developing P03 Alkali Spent alkaline solution P03 L58

Organic solvent Spent halogenated solvent P03 L49
Spent non-halogenated solvent P03 L43

Copper etching E31 Copper etchant Spent copper etchant E31 L76

Plate/Etch resist removal S31 Alkali Spent alkali S31 L58

Organic solvent Spent halogenated solvent S31 L49
Spent non-halogenated solvent S31 L43
Surface sensitizing before S06 Acid Spent acid S06 L48
activation

Activation A05 Palladium and tin salt Spent solution containing heavy A05 L66
metals

Acceleration A01 Acid Spent acid A01 L48

(n.e.c.= not elsewhere classified)

B-10
 APPENDIX B (II)

SECTOR INDUSTRY TYPE PROCESS PROC TYPICAL PROCESS WASTE STREAM WASTE
CODE CODE CHEMICAL CODE
Electroless copper plating P45 Plating chemicals Spent plating bath containing P45 L66
heavy metals
Plating bath sludge containing P45 M66
heavy metals

Solder mask application S13 Heat resistant Surplus polymeric slurry S13 M33
polymer, containing flammable substances
organic solvent

Hot air levelling D54 Solder, tinning oil Spent mineral oil D54 L63

Solder flux application S12 Flux, organic solvent Spent halogenated solvent with S12 L49
solder flux
Spent non-halogenated solvent S12 L43
with solder flux

Soldering S15 Solder, flux, tinning oil Spent mineral oil with solder flux S15 L63

Vapour degreasing D34 Organic solvent Spent halogenated solvent D34 L49
Spent non-halogenated solvent D34 L43

Black oxide treatment O02 Acid Spent acid O02 L48

Smear removal S09 Chromic acid Spent solution containing S09 L78
chromium
Potassium Spent solution containing S09 L66
permanganate manganese

Etch -back E03 Glass etchant Spent acid E03 L48

Tin-lead (solder) stripping S33 Fluoroboric acid Spent acid S33 L48

Solder brightening S11 Acid Spent acid S11 L48

Reject/Rack stripping S33 Nitric acid Spent acid S33 L48

Cyanide Spent solution containing cyanide S33 L96

Photosensitive material C34 Photoresist, Surplus halogenated solvent with C34 L49
coating organic solvent photosensitive material
Surplus non-halogenated solvent C34 L43
with photosensitive material

Oxide etching in LCD/IC E35 Acid/Glass etchant Spent acid E35 L48
production

Coating of LCD plate C34 Organic solvent, Surplus material containing C34 L49
polyimide halogenated solvent
Surplus material containing C34 L43
non-halogenated solvent

Filling of liquid crystal F02 Liquid crystal Surplus flammable organic F02 M33
material

Solvent cleaning C06 Organic solvent Spent halogenated solvent C06 L49
Spent non-halogenated solvent C06 L43

Film developing P31 Developer, hydroxide Spent alkaline developer P31 L58

Film fixing P32 Metabisulphite, acetic Spent acidic solution containing P32 L58
acid silver

Sorting of unwanted, Z00 Waste printed circuit Waste containing heavy metals Z00 S66
rejected or damaged board
printed circuit board

Process in common with (Waste streams typical to

electroplating industry electroplating industry)
(3818)

(n.e.c.= not elsewhere classified)

B-11
 APPENDIX B (II)

SECTOR INDUSTRY TYPE PROCESS PROC TYPICAL PROCESS WASTE STREAM WASTE
CODE CODE CHEMICAL CODE
385 ELECTRICAL APPLIANCES AND HOUSEWARE AND ELECTRONIC TOYS

3851 Electrical appliances Paint spraying P01 Paint, organic solvent Surplus paint P01 M53
and houseware
Paint stripping S34 Organic solvent Spent halogenated solvent S34 L49
Spent non-halogenated solvent S34 L43
Solvent cleaning C06 Organic solvent Spent halogenated solvent C06 L49
Spent non-halogenated solvent C06 L43
Vapour degreasing D34 Organic solvent Spent halogenated solvent D34 L49
Spent non-halogenated solvent D34 L43
Process in common with (Waste streams typical to plastic
plastic (356) and plating and electroplating industries)
(3818) industries

3852 Electronic toys Metal parts cleaning C06 Acid Spent acid C06 L48
Alkali Spent alkali C06 L58
Solvent cleaning C06 Organic solvent Spent halogenated solvent C06 L49
Spent non-halogenated solvent C06 L43

Soldering S15 Flux, tinning oil, Spent mineral oil with solder flux S15 L63
solder

Vapour degreasing D34 Organic solvent Spent halogenated solvent D34 L49
Spent non-halogenated solvent D34 L43

Process in common with (Waste streams typical to plastic

plastic (356) and plating and electroplating industries)
(3818) industries
386-7 MACHINERY, EQUIPMENT, APPARATUS, PARTS AND COMPONENTS, n.e.c.

3861 Engines and turbines Surface hardening, S20 Cyanide Spent solution containing cyanide S20 L96
cyaniding
3862 Agricultural machinery and Surface hardening, oil S21 Quenching oil Spent mineral oil S21 L63
equipment quenching
3863 Metal and wood working
machinery
3864 Special industrial machinery Metal parts cleaning C06 Organic solvent Spent halogenated solvent C06 L49
and equipment except metal Spent non-halogenated solvent C06 L43
and wood working machinery Kerosene, diesel, etc. Spent flammable liquid C06 L33
3865 Industrial machinery and
apparatus for the generation of
electricity

3866 Dry batteries (excluding Mixing of anode materials M05 Heavy metal Mixing residue containing heavy M05 S66
lead accumulators) compounds metals
Mixing of cathode materials M05 Heavy metal Mixing residue containing heavy M05 S66
compounds metals
Electrolyte preparation M05 Hydroxide Surplus alkali M05 L58

Metal parts cleaning C06 Organic solvent Spent halogenated solvent C06 L49
Spent non-halogenated solvent C06 L43
Kerosene, diesel, etc. Spent flammable liquid C06 L33

Vapour degreasing D34 Organic solvent Spent halogenated solvent D34 L49
Spent non-halogenated solvent D34 L43

Process in common with (Waste streams typical to printing

printing (342) and and electroplating industries)
electroplating (3818)
industries

(n.e.c.= not elsewhere classified)

B-12
APPENDIX B (II)

SECTOR INDUSTRY TYPE PROCESS PROC TYPICAL PROCESS WASTE STREAM WASTE
CODE CODE CHEMICAL CODE
3867 Electric and torch Paint spraying P01 Paint, organic solvent Surplus paint P01 M53
bulbs and tubes
Paint stripping S34 Organic solvent Spent halogented solvent S34 L49
Spent non-halogenated solvent S34 L43
Glass etching E33 Glass etchant Spent acid E33 L48
Etch-resist stripping S31 Organic solvent Spent halogenated solvent S31 L49
Spent non-halogenated solvent S31 L43
Screen printing P75 Ink, organic solvent Surplus ink containing heavy P75 M66
metals

3871 Machinery and equipment Bronzing C42 Silver cyanide Spent solution containing cyanide C42 L96
except electrical, n.e.c.
Metallizing C42 Silver nitrate, alkali, Spent solution containing silver C42 L66
formalin
Electrochemical machining M02 Electrolyte Spent electrolyte containing M02 L66
heavy metals
Electrical discharge M01 Electrolyte Spent electrolyte containing M01 L66
machining heavy metals
Cooling oil Spent mineral oil M01 L63

Mechanical machining M03 Cutting oil/Cutting Spent mineral oil M03 L63
fluid
Process in common with (Waste streams typical to
electroplating industry electroplating industry)
(3818)

3868 Electronic industrial apparatus Metal spraying S18 Conductive metal Residues containing metallic S18 M66
oxides
3872 Electrical products and
accessories, n.e.c. Process in common with (Waste streams typical to
3873 Electronic products, n.e.c. electronic toys production electronic toys production)
(3852)
388 TRANSPORT EQUIPMENT

3881 Shipyards Boiler cleaning for vessels T01 Acid Spent acid T01 L48
3882 Boatyards
3883 Railroad equipment Maintenance of insulation M33 Asbestos waste M33 S09
pipings
3884 Motor vehicles
3885 Motor-cycles and bicycles Surface hardening, S20 Cyanide Spent solution containing cyanide S20 L96
cyaniding
3886 Aircraft
3888 Motor vehicle breaking Surface hardening, oil S21 Quenching oil Spent mineral oil S21 L63
quenching
3889 Transport equipment, n.e.c.
Replacement of lubricating, O01 Lubricating oil Spent lubricating oil O01 L73
hydraulic, or cooling oils Hydraulic oil Spent mineral oil O01 L63
Cooling oil Spent mineral oil O01 L63
Decarbonization D01 Organic solvent Spent halogenated solvent D01 L49
Metal parts/engine cleaning C06 Organic solvent Spent halogenated solvent C06 L49
Spent non-halogenated solvent C06 L43
Kerosene, diesel, etc. Spent flammable liquid C06 L33
Paint spraying P01 Paint, organic solvent Surplus paint P01 M53
Paint stripping S34 Organic solvent Spent halogenated solvent S34 L49
Spent non-halogenated solvent S34 L43
Mechanical machining M03 Cutting oil/Cutting Spent mineral oil M03 L63
fluid
Maintenance of brake / M32 Asbestos waste M32 S09
clutch linings

(n.e.c.= not elsewhere classified)

B-13
 APPENDIX B (II)

SECTOR INDUSTRY TYPE PROCESS PROC TYPICAL PROCESS WASTE STREAM WASTE
CODE CODE CHEMICAL CODE
Battery replacement or Z00 Spent acidic electrolyte Z00 L48
recharging Spent battery parts containing Z00 S66
heavy metals

Process in common with (Waste streams typical to

electroplating industry eletroplating industry)
(3818)

389 PROFESSIONAL AND SCIENTIFIC, MEASURING AND CONTROLLING EQUIPMENT, n.e.c. AND PHOTOGRAPHIC AND OPTICAL GOODS

3891 Photographic and optical goods Lens polishing P06 Polishing oil Spent mineral oil P06 L63
Sludge containing mineral oil P06 M63

Alkaline degreasing D33 Alkali Spent alkaline solution D33 L58

Solvent cleaning C06 Organic solvent Spent halogenated solvent C06 L49
Spent non-halogenated solvent C06 L43

Vapour degreasing D34 Organic solvent Spent halogenated solvent D34 L49
Spent non-halogenated solvent D34 L43

Mask painting P02 Masking paint, Surplus paint P02 M53

organic solvent

Mask stripping S35 Organic solvent Spent halogenated solvent S35 L49
Spent non-halogenated solvent S35 L43

3892 Watches and clocks, mechanical Solvent cleaning C06 Organic solvent Spent halogenated solvent C06 L49
3893 Watches and clocks, electronic Spent non-halogenated solvent C06 L43

Process in common with (Waste streams typical to

electroplating industry eletroplating industry)
(3818)

3899 Professional & scientific, and Metal parts cleaning C06 Organic solvent Spent halogenated solvent C06 L49
measuring and controlling Spent non-halogenated solvent C06 L43
equipment, n.e.c. Kerosene, diesel, etc. Spent flammable liquid C06 L33

Vapour degreasing D34 Organic solvent Spent halogenated solvent D34 L49
Spent non-halogenated solvent D34 L43

Paint spraying P01 Paint, organic solvent Surplus paint P01 M53

Paint stripping S34 Organic solvent Spent halogenated solvent S34 L49
Spent non-halogenated solvent S34 L43

Lens polishing P06 Polishing oil Spent mineral oil P06 L63
Sludge containing mineral oil P06 M63

Solvent cleaning C06 Organic solvent Spent halogentated solvent C06 L49
Spent non-halogenated solvent C06 L43

Process in common with (Waste streams typical to

electroplating (3818) eletroplating industry)
industry

(n.e.c.= not elsewhere classified)

B-14
APPENDIX B (II)

SECTOR INDUSTRY TYPE PROCESS PROC TYPICAL PROCESS WASTE STREAM WASTE
CODE CODE CHEMICAL CODE
390-1 MANUFACTURING INDUSTRIES, n.e.c.

3901 Toys, n.e.c. Process in common with (Waste streams typical to plastic
3903 Musical instruments plastic products (356); products industries; fabricated
3904 Sporting and athletic goods fabricated metal products, metal products, except machinery
3905 Wig and hair products except machinery and and equipment; and electrical
equipment (380-1); and appliances & houseware and
electrical appliances & electronic toys)
houseware and electronic
toys (385) industries

3906 Bakelite wares Compounding M05 Pigments, additives Mixing residue containing heavy M05 S66
metals
Process in common with (Waste streams typical to mould
mould making (3871) making)

3902 Jewellery and related articles Colouring C07 Pigments Spent solution containing heavy C07 L66
metals
3907 Artificial pearls and
imitation jewellery Chemical polishing P04 Cyanide, Spent solution containing cyanide P04 L96
hydrogen peroxide
Acid cleaning C06 Acid Spent acid C06 L48
Sealing wax stripping S40 Organic solvent Spent non-halogenated solvent S40 L43
Fire assay I02 Lead foil Spent cupel containing lead I02 S66
compounds
Process in common with (Waste streams typical to plastic
plastic products (356); non- products industries; non-ferrous
ferrous basic metals, n.e.c. basic metals, n.e.c.; fabricated
(3723); fabricated metal metal products, except machinery
products, except machinery and equipment; and electroplating)
and equipment (380-1);
and
electroplating (3818)
industries

3908 Buttons Compounding M05 Pigments, additives Mixing residue containing heavy M05 S66
metals
Process in common with (Waste streams typical to
electroplating industry electroplating industry)
(3818)

3911 Umbrellas Mechanical machining M03 Cutting oil / Cutting Spent mineral oil M03 L63
fluid
Paint spraying P01 Paint, organic solvent Surplus paint P01 M53
Paint stripping S34 Organic solvent Spent halogenated solvent S34 L49
Spent non-halogenated solvent S34 L43
Process in common with (Waste streams typical to
electroplating industry electroplating industry)
(3818)

3919 Manufacturing industries, n.e.c. Paint spraying P01 Paint, organic solvent Surplus paint P01 M53
Paint stripping S34 Organic solvent Spent halogenated solvent S34 L49
Spent non-halogenated solvent S34 L43
Metal etching E34 Acid Spent etchant containing heavy E34 L66
metals
Solvent cleaning C06 Organic solvent Spent halogenated solvent C06 L49
Spent non-halogenated solvent C06 L43
Process in common with (Waste streams typical to printing
printing (342) and and electroplating industries)
electroplating (3818)
industries

(n.e.c.= not elsewhere classified)

B-15
 APPENDIX B (II)

SECTOR INDUSTRY TYPE PROCESS PROC TYPICAL PROCESS WASTE STREAM WASTE
CODE CODE CHEMICAL CODE
411 ELECTRICITY, GAS AND STEAM

4111 Electric light and power Storage tank cleaning T01 Organic solvent Spent halogenated solvent T01 L49
4112 Gas manufacture and (e.g. fuel oil, lubrication oil, Spent non-halogenated solvent T01 L43
distribution etc.) Tarry sludge T01 M33
Fuel burning F05 Fuel, fuel additives Residue/ash containing heavy F05 S66
metals
Gas reforming G02 Petrochemical, Spent catalyst containing heavy G02 S66
catalyst metals
Tarry materials G02 M33
Gas scrubbing G01 Spent acidic solution G01 L48
Desulphurization O02 Petrochemical, Spent catalyst containing heavy O02 S66
catalyst metals
Tarry materials O02 M33
Paint spraying P01 Paint, organic solvent Surplus paint P01 M53
Paint stripping S34 Organic solvent Spent halogenated solvent S34 L49
Spent non-halogenated solvent S34 L43
Oil retrofilling from O01 Cooling oil Spent mineral oil O01 L63
maintenance of Spent fluid containing O01 L29
transformers polychlorinated biphenyls
Oil retrofilling from O01 Lubricating oil Spent lubricating oil O01 L73
maintenance of vehicles,
ventilation system, etc.
Metal parts cleaning C06 Kerosene, diesel, etc. Spent flammable liquid C06 L33

Decarbonization D01 Halogenated solvent Spent halogenated solvent D01 L49

Solvent cleaning of C06 Halogenated solvent Spent halogenated solvent C06 L49
electrical and electronic
parts

610 WHOLESALE TRADE

6102 Fuel Storage tank cleaning T01 Organic solvent Spent halogenated solvent T01 L49
6103 Alcoholic drinks and Tobacco (e.g. fuel oil, chemical, etc.) Spent non-halogenated solvent T01 L33
6105 Consumer goods Tarry sludge T01 M33
6108 Raw materials and
semi-manufactures Treatment of floor spills in L01 Oily sludge L01 M63
holding tank
Damaged, expired, Z00 Waste containing chemicals Z00 *
rejected, scrap & unwanted under Schedule 1
chemicals or products

620 RETAIL TRADE

6202 Fuel Storage tank cleaning T01 Organic solvent Spent halogenated solvent T01 L49
6203 Alcoholic drinks and tobacco (e.g. fuel oil, chemical, etc.) Spent non-halogenated solvent T01 L33
6205 Consumer goods Tarry sludge T01 M33
Treatment of floor spills in L01 Interceptor oily sludge L01 M63
holding tank
Lubrication services L02 Lubricating oil Oily sludge L02 M73
Spent lubricating oil L02 L73
Damaged, expired, Z00 Waste containing chemicals Z00 *
rejected, scrap & unwanted under Schedule 1
Chemicals, drugs, Chinese
medicine or products

* Refer to remarks on page B-20

(n.e.c.= not elsewhere classified)

B-16
APPENDIX B (II)

SECTOR INDUSTRY TYPE PROCESS PROC TYPICAL PROCESS WASTE STREAM WASTE
CODE CODE CHEMICAL CODE
630 IMPORT/EXPORT TRADE

6302 Fuel Storage tank cleaning T01 Organic solvent Spent halogenated solvent T01 L49
6303 Alcoholic drinks & tobacco (e.g. fuel oil, chemical, etc.) Spent non-halogenated solvent T01 L33
6305 Consumer goods Tarry sludge T01 M33
6308 Raw materials and
semi-manufactures Treatment of floor spills in L01 Interceptor oily sludge L01 M63
holding tank

Damaged, expired, Z00 Waste containing chemicals Z00 *

rejected, scrap & unwanted under Schedule 1
Chemicals, drugs, Chinese
medicines or products

710 LAND TRANSPORT

7101 Motor buses Oil storage tank cleaning T01 Oily sludge T01 M63
7102 Tramways and railways (e.g. fuel oil, lubricating oil,
etc.)

Process in common with (Waste streams typical to transport

transport equipment equipment building and repairing)
production (388)

711 LAND TRANSPORT

7118 Vehicular tunnel Metal parts cleaning C06 Fuel oil Spent flammable liquid C06 L33

Paint spraying P01 Paint, organic solvent Surplus paint P01 M53

Paint stripping S34 Organic solvent Spent halogenated solvent S34 L49
Spent non-halogenated solvent S34 L43

Oil retrofilling from O01 Cooling oil Spent mineral oil O01 L63
maintenance of Spent fluid containing O01 L29
transformers polychlorinated biphenyls

Oil retrofilling from O01 Lubricating oil Spent lubricating oil O01 L73
maintenance of vehicles,
ventilation system, etc.

Decarbonization D01 Halogenated solvent Spent halogenated solvent D01 L49

Solvent cleaning of C06 Halogenated solvent Spent halogenated solvent C06 L49
electrical and electronic
parts

712 WATER TRANSPORT

7121 Ocean and coastal water Oil/chemical storage tank T01 Organic solvent Sludge containing halogenated T01 M49
transport (excluding seamen) cleaning (e.g. fuel oil, solvent
noxious liquid, etc.) Sludge containing non- T01 M43
7124 Harbour ferry halogenated solvent
7127 Container services Waste containing chemicals T01 *
7129 Salvaging services under Schedule 1

Boiler cleaning T01 Acid Spent acid T01 L48

Process in common with (Waste streams typical to

transport equipment transport equipment building
production (388) and repairing)

* Refer to remarks on page B-20

(n.e.c.=not elsewhere classified)

B-17
 APPENDIX B (II)

SECTOR INDUSTRY TYPE PROCESS PROC TYPICAL PROCESS WASTE STREAM WASTE
CODE CODE CHEMICAL CODE
940 MOTION PICTURE AND OTHER ENTERTAINMENT SERVICES

9401 Film processing Stripping of back coating S35 Sodium sulphate, Spent alkali S35 L58
borax, sodium
hydroxide

Film developing P31 Developer, hydroxide Spent alkaline solution P31 L58

Film fixing P32 Metabisulphite, acetic Spent acidic solution containing P32 L66
acid silver

Photographic reduction P35 Potassium Spent solution containing silver P35 L66
(bleaching) ferricyanide,
thiosulphate

Photographic intensification P33 Developer, Spent bath containing mercury P33 L66
(physical deposition) mercury compounds

Photographic intensification P34 Developer/Ammonia, Spent bath containing mercury P34 L66
(oxidation) mercuric chloride

Stabilization S19 Stablizer / Spent stablizer/formalin solution S19 L36

Formaldehyde

Sound track developing S17 Developer Spent alkaline solution S17 L58

951 REPAIR SERVICES, n.e.c.

9513 Repair of motor vehicles Battery replacement or M31 Lead-acid battery Spent battery containing heavy M31 S66
and motor cycles recharging metals
Spent acidic electrolyte M31 L48

Process in common with (Waste streams typical to transport

transport equipment equipment building and repairing)
production (388)

952 LAUNDRIES, LAUNDRY SERVICES, AND CLEANING AND DYEING PLANTS

9520 Laundries, laundry services, and Dry cleaning D05 Perchloroethylene/ Spent halogenated solvent D05 L49
cleaning and dyeing plants Halogenated solvent Sludge containing halogenated D05 M49
solvent
959 MISCELLANEOUS PERSONAL SERVICES

9592 Photographic studios, including Stripping of back coating S35 Sodium sulphate, Spent alkali S35 L58
commercial photography borax, sodium
hydroxide

Film/photo developing P31 Film/Photo developer Spent alkaline solution P31 L58

Film/photo fixing P32 Film/Photo fixer Spent acidic solution containing P32 L66
silver

Photographic reduction P35 Potassium Spent solution containing silver P35 L66
(bleaching) ferricyanide,
thiosulphate

Photographic intensification P33 Developer, Spent bath containing mercury P33 L66
(physical deposition) mercury compunds

Photographic intensification P34 Developer/Ammonia, Spent bath containing mercury P34 L66
(oxidation) mercuric chloride

Stabilisation S19 Stabilizer / Spent stabilizer/formalin solution S19 L36

Formaldehyde

(n.e.c.= not elsewhere classified)

B-18
APPENDIX B (III)

CHEMICAL WASTE STREAMS FROM WASTE TREATMENT PROCESSES

GENERAL PROCESS PROC DESCRIPTION TYPICAL PROCESS WASTE STREAM WASTE
CODE CHEMICAL CODE
Centrifuging C01 Separation of different Waste containing chemicals C01 *
substances by centrifuge under Schedule 1

Distillation / Solvent D04 Purification & separation of Distilled bottoms containing D04 M49
recovery components by heat application halogenated solvent and tarry materials
Distilled bottoms containing D04 M43
non-halogenated solvent and
tarry materials

Electrolytic extraction E02 Electrodeposition of precious Waste acidic electrolyte E02 L48
metal from waste solution

Resin regeneration R02 Regeneration of ion-exchange Sulphuric acid/Hydrochloric acid Spent acid R02 L48
system Sodium hydroxide Spent alkali R02 L58

Liquid separation L01 Separation of immiscible liquid in Mineral oil waste L01 L63
holding tank Halogenated solvent waste L01 L49
Non-halogenated solvent waste L01 L43

Precipitation P08 Precipitation by chemical Acid Spent acidic solution P08 L48
reaction Alkali Spent alkaline solution P08 L58
Precipitate containing heavy metals P08 M66
Precipitate containing halogenated P08 M49
organic compounds

Sedimentation S05 Separation of solid from liquid Sludge containing heavy metals S05 M66
by physical settlement Sludge containing halogenated S05 M49
organic compounds

Skimming S08 Removal of surface layer from a Mineral oil waste S08 L63
waste liquid or mixture held in a Halogenated solvent waste S08 L49
processing/storage tank Non-halogenated solvent waste S08 L43

Dewatering, centrifuge D41 Removal of excessive water from Dewatered sludge containing D41 M66
sludge by centrifuge heavy metals
Dewatered sludge containing D41 M49
halogenated organic compounds

Dewatering, filter press D42 Removal of excessive water from Dewatered sludge containing D42 M66
sludge by filter press heavy metals
Dewatered sludge containing D42 M49
halogenated organic compounds

Dewatering, n.e.s. D50 Removal of excessive water from Dewatered sludge containing D50 M66
sludge by other methods heavy metals
not elsewhere specified Dewatered sludge containing D50 M49
halogenated organic compounds

Incineration I02 Incineration of wastes Incineration ash & slag containing I02 M66
Metal extraction by calcination heavy metals

Gas scrubbing G01 Removal of gaseous fumes by Acidic waste G01 L48
scrubber. Alkaline waste G01 L58
Scrubbed solution containing G01 L49
halogenated organic compounds
Scrubbed solution containing G01 L63
high content of mineral oils
Paint waste slurry from paint spraying G01 M53

* Refer to remarks on page B-20

B-19
 APPENDIX B (III)

GENERAL PROCESS PROC DESCRIPTION TYPICAL PROCESS WASTE STREAM WASTE

CODE CHEMICAL CODE
Reduction R01 Reduction of metal ions in Reducing agent Spent solution containing heavy metals R01 L66
solution

Adsorption A07 Removal of metallic Activated charcoal Spent charcoal containing heavy metals A07 S66
contaminants from solution

Ion exchange I03 Removal of ions from solution Resin Spent resin containing heavy metals I03 S66

Cyanide destruction C92 Destruction of cyanide in solution Oxidizing agent

Neutralization N82 Neutralization of acidic or Acid

alkaline waste Alkali

Sorting and recycling of S82 Sorting and recycling of certain Flat-panel display Waste containing heavy metals S82 S66
certain WEEE items electronic equipment Cathode ray tube
Fluorescent lamp
Waste lead-acid battery (WLAB)
including WLAB from UPS
Printed circuit board

Cleansing C06 Cleansing of petrol interceptor Mineral oil Mineral oil collected from petrol interceptor C06 L63

(n.e.s.= not elsewhere specified)

REMARKS

HOW TO COMPLETE WASTE CODE DENOTED BY *

The WASTE CODE consists of the concerned PROCESS CODE and WASTE SUB-CODE.
The PROCESS CODE is shown alongside the process name whereas the WASTE SUB-CODE is described below.

Waste Sub-Code
The waste sub-code is a 3-digit alpha-numeric code. The first digit is an alphabet which denotes the physical form of the
waste as follows:

Physical State: A stands for Aerosol

G stands for Gas in pressurised container
L stands for Liquid
M stands for Miscellaneous (e.g. Sludge)
S stands for Solid

The last two digits are Arabic numeric codes (see Appendix A) denoting the nature of waste. That is to say:
Waste sub-code = Physical state + Numeric code

Examples: L76 stands for liquid copper etchant

M66 stands for toxic metal sludges
S09 stands for solid asbestos waste

B-20
APPENDIX C

SAMPLE REGISTRATION FORM

Item 1
Item 2
Item 3

Item 4

Item 5 Item 6

Item 7
Item 8
Item 9
Item 10

Item 11

Item 12 Item 13
Item 14 Item 15

Item 16 Item 17

Item 18 Item 19 Item 20

Application form for registration of chemical waste producer is available from the following link:
http://www.epd.gov.hk/epd/sites/default/files/epd/tc_chi/application_for_licences/applic_froms/files/epd129.pdf

C-1