INTERNATIONAL
STANDARD 11127-7
First edition
1993-12-15
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Preparation of steel Substrates before
application of paints and related
products - Test methods for non-metallic
blast-cleaning abrasives -
Part 7:
Determination of water-soluble chlorides
Prdpara tion des subjectiles d’acier avant applica tion de pein tures et de
produits assimiks - Methodes d’essai pour abrasifs non m&alliques
destines 2 Ia prkparation par projection -
Partie 7: D6 termination des Chlorures solubles dans I’eau
Reference number
ISO 11127-7:1993(E)
ISO 11127-7:1993(E)
Foreword
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ISO (the International Organization for Standardization) is a worldwide
federation of national Standards bodies (ISO member bodies). The work
of preparing lnternational Standards is normally carried out through ISO
technical committees. Esch member body interested in a subject for
which a technical committee has been established has the right to be
represented on that committee. International organizstions, governmental
and non-governmental, in liaison with ISO, also take part in the work. ISO
collaborates closely with the International Electrotechnical Commission
(1EC) on all matters of electrotechnical standardization.
Draft International Standards adopted by the technical committees are
circulated to the member bodies for voting. Publication as an International
Standard requires approval by at least 75 0x0sf the member bodies casting
a vote,
International Standard ISO 11127-7 was prepared by Technical Committee
ISOnC 35, Paints and varnishes, Subcommittee SC 12, Preparation of
steel Substrates before application of paints and related products.
ISO 1’1127 consists of the following Parts, under the general title Prep-
aration of steel Substrates before application of paints and related
products - Test methods for non-metallic blast-cleaning abrasives:
- Part 1: Sampling
- Part 2: Determination of particle size distribution
- Part 3: Determination sf apparent density
- Part 4s Assessment of hardness by a glass slide test
- Part 5: Determination of moisture
- Part 6: Determination o f wa ter-soluble con taminants by conductivity
measurement
- Part 7: Determination o f wa ter-soluble chlorides
- Part 8: Determination o f abrasive mechanical properties
0 ISO 1993
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lnternational Organization for Standardization
Case Postale 56 0 Cl-l-1 211 Geneve 26 0 Switzerland
Printed in Switzerland
@3ISO ISO 11127-7:1993(E)
At the time of publication of this part of ISO 11127, part 8 was in course
of preparation.
Annex A of this part of ISO 111127 is for Information only.
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INTERNATIONAL STANDARD 0 ISO ISO 11127-7:1993(Ej
Preparation of steel Substrates before application of
paints and related products - Test methods for
non-metallic blast-cleaning abrasives -
Provided by Standard Online AS for Jotun AS 2009-03-17. Reproduction is not allowed.
Part 7:
Determination of water-soluble chlorides
1 Scope ISO 3696:1987, Water for analytical laboratory use -
Specifica tion and test methods.
This is one of a number of park of ISO 11127 dealing
with the sampling and testing of non-metallic abras- ISO 11127-1 :1993, Preparation of steel Substrates
ives for blast-cleaning. before application of paints and related products -
Test me thods for non-metallic blas t-cleaning abrasives
The types of non-metallic abrasive and require- - Part 1: Sampling.
ments on each are containedl in the various Parts
of ISO 11126.
3 Reagents
The ISO 11126 and BS0 11127 series have been
Use only reagents of recognized analytical grade and
drafted as a coherent set of International Standards
only water of at least grade 3 purity complying with
on non-metallic blast-cleaning abrasives. Information
ISO 3696.
on all Parts of both series is given in annex A.
This part of ISO 11127 specifies a method for the 3.1 Sulfuric acid, concentrated, approximately
determination of water-soluble chlorides in non- 96 % (m/m), p N 1,84 g/ml.
metallic blast-cleaning abrasives.
3.2 Silver nitrate, Standard volumetric Solution,
C(WO3) = 0,Ol mol/l.
4 Apparatus
2 Normative references
Ordinary laboratory apparatus and glassware, together
The following Standards contain provisions which, with the following:
through reference in this text, constitute provisions
of this part 0% ISO 1%127. At the time of publication, 4.1 Equipment for amperometric titration, any
the editions indicated were valid. All Standards are commercial equipment being suitable.
subject to revision, and Parties to agreements based
on this part of ISO 11127 are encouraged to investi-
4.2 Microburette.
gate the possibility of applying the most recent edi-
tions 0% the Standards indicated below. Mlembers 0%
IEC and ISO maintain registers of currently valid 4.3 Balance, capable of weighing to an accuracy of
International Standards. 081 g*
ISO 11127-7:1993(E) 0 ISO
5 Sampling
Take a representative Sample of the product to be mo is the mass, in grams, of the test Portion;
tested, as described in ISO 11127-1 l
V is the volume, in millilitres, of silver nitrate
Solution (3.2) used;
6 Procedure
0,000 355 is the factor for the conversion of
Carry out the determination in duplicate. millilitres of silver nitrate Solution, c(AgN0,)
= 0,Ol mol/l, to grams of Cl.
6.1 Weigh a test Portion of (100 k 0,l) g of the
If the duplicate determinations differ by more than
Sample (mo> into a 250 ml flask and add
10 % (relative to the higher result), repeat the pro-
(100 -+ 1) ml of water. Shake for 5 min and allow to
cedure described in clause 6.
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stand for 1 h. Then Shake again for 5 min and allow
to settle. If the Solution does not completely clear, Calculate the mean of two valid determinations and
filter it by any suitable method. report the result to the nearest 0,000 1 %.
6.2 Take 25 ml of the Solution, add 0,l ml of the 8 Test report
sulfuric acid (3.1) and dilute to approximately 75 ml
with water. The test report shall contain at least the following in-
formation:
6.3 Titrate the Solution with the silver nitrate (3.2)
from the microburette (4.2), noting the end Point as a) all details necessary to identify the product tested,
the voltage at which the pointer of the galvanometer in accordance with the appropriate part of
reverses direction. ISO 11126 (see annex A), if applicable;
7 Calculation b) a reference to this part of ISO 11127
(ISO 11127-7);
Calculate the water-soluble chloride content w(CI), of
the abrasive, expressed as a percentage by mass, c) the result of the test;
using the equation
d) any deviation from the test method specified;
Vx0,000355x4 xloo
w(CI) =
mo e) the date of the test;
the name of the person who carried out the test.
ISO 11127=7:1993[E)
Annex A
(informative)
International Standards for non-metallic blast-cleaning abrasives
Requirements and test methods for non-metallic ISO 1%127 will consist of the following park, under
blast-cieaning abrasives are contained in ISO 11126 the general title:
and ISO 11127 respectively.
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Prepara tion o f s teel subs tra tes be fore applica tion
ISO 11126 will consist of the following park under of paints and related products - Test methods for
the general title: non-metallic blast-cleaning abrasives
Prepara tion o f s teel Substrates be fore applica tion - Part 1: Sampling
of paints and related products - Specifications
for non-metallic blas t-cleaning abrasives - Part 2: Determination of particle size distri-
bution
- Part 1: General in troduction and classification
- Part 3: Determination of apparent density
- Part 2: Silica sand
- Part 4: Assessment of hardness by a glass
- Part 3: Copper refinery slag slide tes t
- Part 4: Coal furnace siag - Part 5: Determination of moisture
- Part 5: Nickel refinery slag - Part 6: Determination o f wa ter-soluble con-
taminants by conductivity measurement
- Part 6: iron furnace slag
- Part 7: Determination of wa ter-soluble chlor-
- Part 7: Fused aluminium Oxide ides
- Part 8: Olivine sand - Part 8: Determination of abrasive mechanical
properties
- Part 9: Staurolite
- Part 10: Garnet
3
ISO 11127~7:1993(E)
Provided by Standard Online AS for Jotun AS 2009-03-17. Reproduction is not allowed.
UDC 667.648.1:621.7.023:621.921.2/.3:543.921:546.131
Descriptors: paints, vamishes, Substrates, steel products, blast-cleaning, abrasives, non-metallic abrasives, tests, determination of
content, chlorides, conductimetric methods.
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