Technical Specifications of PP bags – Bharat NPK (ANP)

Specifications for Circular Woven Polypropylene, laminated (PP) Bharat NPK Bags
with LDPE/LLDPE Liner for Packing of 50 Kgs to fill ANP.

1. General

1.1. The supplier shall manufacture and supply circular woven laminated P P bags with
LDPE/LLDPE liner for packing of Ammonium Nitro Phosphate (ANP) strictly
conforming to IS-9755: 2021 and following specifications.

1.2. The bags to be supplied shall be of PP fabric woven in circular looms (having no
twisting of WEFT) with 2.5 % UV stabilizer master batch with P P lamination. The
bags shall be without any side seam. ‘L’ stitched bags made of circular woven PP fabric
shall not be accepted.

2. Size & Capacity

2.1. The capacity of each bag shall be to hold 50 Kgs. of product.

2.2. The inside dimensions of bags shall be as under :

Product GNFC Material Code Length Width Minimum inside area

815 +20 mm 560 +20 mm
921502552D 0.448 m2
-10 mm - 10 mm
ANP
900 +20 mm 560 +20 mm
921502553D 0.495 m2
-10 mm - 10 mm

Length and width both should not be short simultaneously. The dimensions of bags
shall be within above mentioned tolerance and within specified limit of minimum
inside area.

3. Fabric :

3.1. The fabric shall be woven from PP tapes conforming to IS-6192 (Latest) and shall be
free from all major weaving defects like pick points, missing tapes etc. and it shall be
free from biasness also.

3.2. The construction of the PP fabric shall be as per the specifications given below.

3.3. The bag shall be made from single piece of laminated PP woven fabric. The PP

GNFC_HDPE & PP_Bags_n_Code 2023-24

 granules shall be raffia Grade H030SG of M/s RIL / equivalent & PP of lamination of
lamination grade H350FG of M/s RIL / equivalent. The appearance of bag shall be Sky
Blue tone. Required quantity of correct quality of Master Batch should be used for
Sky Blue tone appearance of the fabric and Bag. Vendor to submit sample before
bulk supply for approval of appearance of bag.

4. Calcium Carbonate (CaCO3) / Ash Content :

4.1. Testing shall be carried out by GNFC or GNFC appointed laboratory as per IS
9755:2021 Annexure-C.

4.2. Maximum limit of CaCO3 allowed is 3.7% (Ash Content 2.2%). In case test result
exceeds CaCO3 limit of 3.7% (Ash Content 2.2%), the lot is to be accepted up to 5%
Calcium Carbonate content (3% Ash content) with applying penalty at the rate double
by which Calcium Carbonate content is higher than 3.7% (Ash Content 2.2%). If test
result exceeds 5% of Calcium Carbonate content (Ash Content 3%), the lot is to be
rejected.

4.3. In case of more than two incidents of CaCO3 exceeding 5% (Ash Content 3%), the
supplier will be put in holiday list.

5. UV Resistance :

The woven fabric made from UV stabilized tapes shall have minimum 50% retention
of the original breaking strength, when tested after the same has been exposed to UV
radiation and accelerated weathering as per test method mentioned at IS-9755:2021
Annexure-F.

6. Lamination :

6.1. The circular woven fabric shall be laminated on outer side with virgin PP film on a
lamination plant. The laminated film should overlap and seal each other at side crease
and should be kept minimum 5 mm extra and not more than 10 mm after trimming. The
lamination shall be free from pinholes, porosity, patches, tears, poor lamination, blisters
or any other visible defects.

6.2. The thickness of lamination shall be 100 gauge (25 micron) with tolerance of ± 5%. The
lamination mass shall be 23 g/m2. The lamination shall cover the entire outside area of
the fabric used in the bag.

7. Stitching:

7.1. The bottom of the bag shall have minimum 25 mm folding when measured from

GNFC_HDPE & PP_Bags_n_Code 2023-24

 outside. The bottom of bags shall have one fold (4 layers).

7.2. The bag shall be stitched at the bottom with two rows of chain stitches with number of
stitches shall be 12 ± 2 per dm. The materials used for stitching shall be Polyethylene
or polypropylene multifilament yarn, spun yarn twisted thread or fibrillated tape yarn
suitable for the purpose having breaking load not less than 90 N. The material for
stitching shall be UV stabilized. The stitching shall be uniform without any loose thread
or knot.

7.3. The distance between the rows shall be minimum 5 mm. The outer row shall be
minimum 8 mm from the outer edge of the bottom of the bag.

7.4. Stitching threads at the bottom of bags should be Orange color.

8. Strength :

8.1. The minimum breaking strength of the samples drawn from the lot of laminated bags
shall be as follows:

Lengthwise : Minimum 91.8 kgf.

Widthwise : Minimum 91.8 kgf.
Widthwise at lamination joint : Minimum 91.8 kgf
Bottom seam : Minimum 40.8 kgf.

8.2. The elongation of the laminated fabric, while testing shall not be less than 15% and
more than 25%.

9. Mesh, Denier:

9.1. The bags shall be 10 x 10 mesh with minimum 2.5 mm tape width. The bags shall have
close weaving. The denier of the PP tape used for fabric shall be 1000 denier.

10. Mouth of Bag :

The mouth of the bag shall be selvedge hammed or heat cut so that the tapes do not
fray.

11. Loose Liner :

Loose Liner shall be made from LDPE – Reliance Grade 24FS040. Necessary amount
of LLDPE can be added in small proportion to achieve desired quality.

Size of the liner shall be of length 965/1050 ± 10 mm x width 580 ± 10 mm (excluding

of liner used in folding and stitching). Dimensions will be measured from inside of
GNFC_HDPE & PP_Bags_n_Code 2023-24
 inner most row of stitches to top of bag and liner must be minimum 150 mm longer than
the bag size in length (i.e. Liner shall be projected 150 mm outside bags). The liner
length used in folding / stitching portion is not taken into account while working
out above mentioned size of liner.

Thickness of liner shall be 50 micron ± 10%.

Weight of individual liner shall be 52 grams ± 6% for 965 x 580 mm liner and 56.5
grams ± 6% for 1050 x 580 mm liner.

Liner shall have 6 to 7 nos. of holes of 2 to 4 mm dia. on the periphery of liner

will be made at a distance of about 700 mm from the bottom.

Liner should be heat sealed at the bottom and stitched with PP fabric from 25 mm from
the heat seal. It means after heat sealing the LDPE liner, the remaining liner should be
stitched maximum 25mm from the heat sealed strips.

12. Printing :

12.1. The printing will be on Single side of bags as per the art work given by GNFC. Corona
treatment shall be carried out on fabric prior to printing. Supplier shall use photo-
polymeric quality stereo to have clear printing, uniformity and better sharpness.

12.2. The supplier shall have to obtain sample approval for the colour / printing matter /
shade / ink quality before bulk supply. The printing matter layout should be exactly
as per the sample transparency (supplied to vendor) in terms of total matters
including font type size, logo size spacing of letters, spacing of words, spacing of
lines and overall size / dimensions of the printing matter.

12.3. Colour of printing matter should match the specification including multi-colour image.
You shall use Rub Resistant Ink / Reducer of good quality which shall pass rub
resistance test. Please specify the ink used, in the Quality Assurance Certificate.

12.4. For rub resistant test, we shall use yellow duster / buff cloth for rubbing before dispatch
of bags, you shall carry out rub resistance test and peel test at your end to avoid
rejection after receipt at GNFC.

12.5. The ink used shall give smudge free, indelible, clean marking, and resistant to UV rays.

GNFC_HDPE & PP_Bags_n_Code 2023-24

 The ink and the other ingredients to be used for such printing shall be waterproof,
scratchproof, and harmless to fabric.

12.6. Bags with colour back impression will not be acceptable. Colour should not fade
during handling and transportation of bags to various locations.

12.7. The ink and the other ingredients to be used for such printing shall be waterproof,
scratchproof, and harmless to fabric and shall be of sack branding quality
manufactured by reputed firms. The ink used shall give smudge free, indelible and
clean marking. Only Polyamide Resin based ink shall be used and only Butanol shall
be used as reducing agent.

12.8. Each bag for identification shall be marked with party’s code, year, month and lot
number on the bottom right hand corner. Example: If you supply 2 lots in October-23
& 2 lots in November-23 it should be printed as :

Party’s code : 23/10/1

Party’s code : 23/10/2
Party’s code : 23/11/1
Party’s code : 23/11/2

Minimum lot should be 25000 nos. Bag and shall be in multiple of 500 nos.

12.9. For identification of the supplier, code no. shall be printed on each bag at the left
hand side in line of “Month & Year of Manufacture”. Code no. shall be specified by
GNFC at the time of placement of order. You will use capital letters for code no. given
to you instead of using your company monogram. These details will be in the letter
size of 12 mm height only.

12.10. The bag branding testing has been indicated as above. GNFC recommends that the
supplier should test the quality of branding as per the procedure narrated below,
prior to dispatch of the lot.

12.11. Test procedure and details for branding shall be as follows:

13. Testing Procedure :

13.1. Prepare 50% Alkali solution by dissolving 250 g ram of sodium Hydroxide (Caustic
Soda) in ½ Liter water (preferably distilled water). This is solution ‘A’. Prepare a 50%
Urea/SSP/Imported DAP/Imported MOP solution by dissolving 250 Gram of product
in ½ liter water (preferably distilled water). This is solution ‘B’. Cut three strips
measuring 3 cm x 15 cm each from branded portion of the HDPE bag.

GNFC_HDPE & PP_Bags_n_Code 2023-24

13.2. Take two glass measuring cylinder with capacity 250 ml. Take solution “A” in one
and solution “B” in another cylinder and dip one strip in each. Let these strips be
dipped for 24 hours. Keep the third strip in air for reference.

13.3. After 24 hours, the strips are to be removed from the solutions, thoroughly
washed with water and dried in air, the colour of the strips should not fade as
compared to the original strip kept in air.

14. Packing :

14.1. The bags shall be flat packed in trusses containing 500 nos. in each truss.

14.2. The trusses shall be wrapped with a PP of 6.5 to 7 oz and stitched properly to withstand
the hazards of transportation and storage.

14.3. Each truss shall be having following marking :

g. Name of the supplier
h. Type of bags and size
i. Weight of truss and no. of bags in truss
j. Sr. No. of truss
k. Lot No.
l. Purchase Order No.

14.4. If during receipt at GNFC site, the supplier is found to make a lapse on the above
respect; such lot shall be rejected and returned to party without any notice.

14.5. If any shortages found in bales, entire lot will be counted at the cost of party. If repeated
and heavy shortages found from lots supplied, GNFC will terminate contract during its
validity and disqualify vendor from approved vendor list. The amount will be recovered
for the shortages found in the lot from due payments/Security deposit. The counting
procedure will be as per norms fixed by GNFC from time to time.

15. Inspection And Testing :

15.1. Over and above, IS 9755:2021 specifications shall be followed.

15.2. Inspection shall be carried out by GNFC and / or by GNFC appointed agency at GNFC
works and / or at Manufacturer’s works as per the convenience of GNFC. However,
inspection carried out by GNFC at GNFC site shall be final and binding.

15.3. The Acceptance and Penalty Norms for Bags are as mentioned here below. The
suppliers are required to study the same. Any deviations to the same are not
GNFC_HDPE & PP_Bags_n_Code 2023-24
 acceptable. Please categorically confirm in your offer that the same are studied and
are accepted without any deviation.

15.4. Whenever re-inspection of Bags/Lot is necessary after the segregation, the re-
inspection charges would be levied to party’s account as under:

e. Initial (first) inspection : Nil

f. 1st re-inspection : Rs.2000/- per lot
g. 2nd re-inspection : Rs.4000/- per lot
h. 3rd re-inspection : Rs.6000/- per lot

15.5. In case the lot still becomes unacceptable, the bags will have to be taken back by the
supplier at its cost after cross marking by GNFC on entire quantity of the lot.

GNFC_HDPE & PP_Bags_n_Code 2023-24

16. Specification for laminated Circular Woven PP Bags with LDPE/LLDPE Liner:
Sr Parameter Product BHARAT NPK (ANP)
No  GNFC Material Code 921502552D 921502553D

1 Packing Capacity 50 Kg
2 PP Length (Inside) 815 +20, -10 mm 900 +20, -10 mm
3 woven Width 560 +20, -10 mm 560 +20, -10 mm
4 Bag Inside area (Minimum) 0.448 m2 0.495 m2
5 Weight of individual bags including 160 ± 6 % grams 175 ± 6 % grams
loose liner (Minimum 150.4 gram) (Minimum 164.5 gram)
6 Average weight of sampled bags 160 ± 3 % grams 175 ± 3 % grams
including loose liner, drawn as per (Minimum 155.2 gram) (Minimum 169.8 gram)
IS-9755 for inspection
7 Tap width 2.5 mm
8 Mesh size 10 x10
9 Denier 1000
10 Bags laminated with LDPE 100 gauge (25 Micron) minimum
/LLDPE film of uniform thickness
11 Loose liner Length 965 ± 10 mm 1050 ± 10 mm
12 of LDPE/ Width 580 ± 10 mm 580 ± 10 mm
13 LLDPE Weight of 52 ± 6% grams 56.5 ± 6% grams
individual liner
14 Liner shall have 6 to 7 nos. of holes of 2 to 4 mm dia. on the periphery of liner and
will be made at a distance of about 700 mm from the bottom. (Size of the liner shall
be of length 965/1050 ± 10 mm x width 580 ± 10 mm excluding of liner used in folding
and stitching).
15 Colour of stitching thread of Orange color
bottom of bag
16 Nos. of stitches per dm (chain 12 ± 2
stitches)
17 Minimum Distance between 5 mm
two rows of stitch
18 Minimum Distance of stitch from 8 mm
outer edge
19 Bottom Folding Bag shall be single folded in 4 layers outside
minimum 25 mm and stitching shall pass through
all six layers of fabric.
20 Breaking Strength (length, width and 91.8 kgf Minimum
at lamination joint)
21 Breaking Strength of Bottom seam 40.8 kgf Minimum
22 % Elongation 15 to 25
23 Colour of printing As per GNFC print art work
24 Drop test from height of 2 meters No bags should rupture when subjected to
from all side minimum 4 nos. of drops. The bags will be dropped
on the stomach during drop tests.
25 Performance of bags during During actual use of bags in bagging plant, bags

GNFC_HDPE & PP_Bags_n_Code 2023-24

 Sr Parameter Product BHARAT NPK (ANP)
No  GNFC Material Code 921502552D 921502553D

actual use / bursting should give satisfactory performance. GNFC
reserves right to reject entire lot if excessive
bursting (Beyond 0.10%) is found during use of
bags. For such rejected lot, recovery shall be made
from any due payment of party.

GNFC_HDPE & PP_Bags_n_Code 2023-24

17. Acceptance and Penalty Norms:

Sr Defect Criteria for Acceptance Norms for Penalty

No
1 Physical Defects: (A) If such defects are observed Re-inspection charges per
Skipped branding, within 10% of inspected bags, lot shall be as under:
improper logo, hook then lot shall be accepted.
cuts, rope cuts, pin (B) If defects are observed in 1st Re-inspection: Rs.
holes, back more than 10% of inspected bags, 2000/-
impression, weaving party shall be asked for 2nd Re-inspection: Rs.
defects, printing segregation of the defective bags 4000/-
mistakes, skipped or at GNFC site. 3rd Re-inspection: Rs.
defective bottom (C) The No. of defects during 6000/-
stitching inspection after segregation shall
not exceed 10% of inspected In case the lot still
Lamination Defects : bags, otherwise party shall be becomes unacceptable
Delamination, skipped asked for re-segregation of the after 3 segregations, entire
lamination defective bags at GNFC site. lot quantity will be cross
(D) In case during bagging, if marked and will be
Type of bottom folding: segregated lot gives problem of returned back to party at
Single fold (Four stretching/bursting, then the vendor’s cost.
layers) entire lot shall be rejected and
returned to the party with Cross
(‘X’) marking on each bag.

2 Colour Fading: Colour shade / Printing matter (c) If colour shade or colour
Improper printing, shall be strictly as specified by fading in alkali / product
Printing ink, colour GNFC. Colour fading for the ink solution or printing
shade of ink, colour used shall not be acceptable. matter variation is minor
fading etc. (nearby to acceptable),
Ink to reducer Ratio shall be then lot shall be
maintained upto 0.5 will be the accepted with penalty @
acceptance limit. Rs 0.25 per bag.
(d) In case of vide variation
in colour / shade /
printing matter, the lot
shall be rejected and
returned with cross
marking.
Acceptance of above
defects with penalty will be
for one time only in entire
contract period and
thereafter lots will not be
accepted for defects of
colour fading/ shade
difference and will be
returned to party with
cross marking.
GNFC_HDPE & PP_Bags_n_Code 2023-24
Sr Defect Criteria for Acceptance Norms for Penalty
No
3 Colour Rub Resistance Branding colour shall not be In case of minor colour
Corona treatment shall removed in rub test as mentioned removal in rub test, lot can be
be carried out before in specification. accepted at the discretion of
printing. GNFC with / without penalty.
In case of major colour
removal, lot shall be rejected.
4 No of stitches per (A) The defective bags shall be
DM (12 ± 2) : accepted one time in contract
period provided seam strength is
within acceptable limit after
warning to party. Such defects
should not be repeated in further
lots supplied.
(B) In case during bagging, if lot
gives problem of stretching /
bursting, then the entire lot shall
be rejected and returned to the
party with ‘X’ marking on each
bag and payment recovery of
such rejection shall be made from
due bills.
5 Weight (gram) (A1) On individual bag : - 6% _
(A2) Average weight of samples
drawn as per IS 9755 2021 Sixth
Revision for inspection: - 3%
(B) If average weight as per (A2)
is up to -3% and weight of
individual sample bag is within -
6%, lot shall be accepted.
(I) Penalty shall be 10
(C) If average weight as per (A2) paise /gram/bag from
is found below -3% and if specified weight and shall
individual sample bag is within- be on total quantity of lot.
6% limit, lot shall be accepted with
penalty. (II) Re-inspection charges
(D) If average weight as per (A2) per lot shall be as under :
is found less than -5%, or any
individual bags found less than - 1st Re-inspection : Rs.
6%, then lot shall be given for 2000/-
segregation at GNFC site for 2nd Re-inspection : Rs.
removal of defective bags. Such 4000/-
segregation would be allowed 3rd Re-inspection :Rs.
maximum 3 times per lot. Even 6000/-
after three segregations, if lot is
not passing, it will be rejected and
returned to party with “X” marking.
GNFC_HDPE & PP_Bags_n_Code 2023-24
Sr Defect Criteria for Acceptance Norms for Penalty
No
6 Size of PP Bag (A) The tolerance in length and Re-inspection charges per
width will be allowed +20 mm, -10 lot shall be as under :
mm. However, length and width
both should not be short 1st Re-inspection : Rs.
simultaneously and minimum 2000/-
area as mentioned in enquiry 2nd Re-inspection : Rs.
specifications should be 4000/-
available. 3rd Re-inspection :Rs.
(B) If size of bag/ minimum area 6000/-
of bag is not within specified
norms in more than 10% of In case the lot still
sampled bags, then lot will be becomes unacceptable
given for segregation of removal after 3 segregations, entire
of defective bags. Such lot quantity will be cross
segregation will be allowed marked and will be
maximum 3 times per lot. Even returned to party.
after three segregations, if lot is
not passing, it will be rejected and
returned to party with cross
marking.
7 Breaking Strength : (A) If strength of individual bag is
(Width /Length / greater than 82.6 kgf and average
Lamination joint) : of all inspected bags is equal to or
Minimum 91.8 Kgf more than 91.8 kgf, then lot shall
2 samples will be cut be accepted.
from each bag for each
length, width and (B) If strength of individual bag is Penalty shall be :
lamination joint to be greater than 82.6 kgf and average 15 Paise /Kgf of average/
strength tested as per of all inspected bags is between Bag (On entire lot quantity)
IS-9755. 82.6 to 91.8 Kgf, lot shall be
accepted with penalty.

(C) If strength of any individual

bag or average of all inspected
bags is below 82.6 kgf, the entire
lot shall be rejected in both
individual as well as average
case. Rejected lot shall be
returned to the party with cross
marking.

8 Bottom Seam Strength (A) If strength of individual bag is

40.8 Kgf Minimum greater than 36.7 kgf and average
2 samples will be cut of all inspected bags is equal to or
from each bag to be more than 40.8 kgf, then lot shall
tested as per IS-9755. be accepted.
GNFC_HDPE & PP_Bags_n_Code 2023-24
Sr Defect Criteria for Acceptance Norms for Penalty
No
(B) If strength of individual bag is
greater than 36.7 kgf and average Penalty shall be :
of all inspected bags is between 15 Paise /Kgf of average/
36.7 to 40.8 Kgf, lot shall be Bag (On entire lot quantity)
accepted with penalty.
(C) If strength of any individual
bag or average of all inspected
bags is below 36.7 kgf, the entire
lot shall be rejected in both
individual as well as average
case. Rejected lot shall be
returned to the party with cross
marking.
9 % Elongation (Length (A) If % elongation (Length and
and widthwise (15 to widthwise) of individual bag is
25%). more than 13% and average
elongation is observed within the
range of 15 to 25% then lot shall
be accepted.

(B) If % elongation of individual Penalty shall be:

bag is more than 13% and 15 Paise / % elongation of
average elongation is between 13 average/ Bag (On entire lot
to 15% then lot shall be accepted quantity)
with penalty.
10 Drop Test: (A) During the drop test, no
Bag shall be dropped 4 sample bag shall rapture. (B) if
times from a height of during drop test, the bags are
2 meters. The bag found to rupture, the lot shall be
shall be dropped on rejected and shall be returned
stomach only. with ‘X’ marking.
11 Bursting Rate (I) The lot during actual bagging
Observed during use operation if found with bursting
of bag rate exceeding limit of 0.10%,
GNFC will not use such lots and
same will be rejected and
returned to vendor. In case lot
exceeding the bursting rate
beyond 0.10% and if used, GNFC
will levy penalty at 3 times the
actual cost of bags bursted.

(II) Lot giving problem of

excessive bursting (beyond
0.10%) will be returned to vendor
after cross marking.
GNFC_HDPE & PP_Bags_n_Code 2023-24
Technical Specifications of PP Urea bags to fill Neem Coated Urea

Specifications for Circular Woven, Laminated Poly Polyethylene (PP) Bags for
Packing of 45 Kgs Bharat Urea (Neem Coated Urea) / Imported Urea.

1. General

1.1. The supplier shall manufacture and supply circular woven laminated PP bags for
packing of B h a r a t U r e a ( Neem coated Urea / Imported Urea) strictly conforming
to IS-9755: 2021 and following specifications.

1.2. The bags to be supplied shall be of PP fabric woven in circular looms (having no
twisting of WEFT) with 2.5% UV stabilizer master batch with PP lamination. The bags
shall be without any side seam. ‘L’ stitched bags made of circular woven PP fabric
shall not be accepted.

2. Size & Capacity

2.1. The capacity of each bag shall be to hold 45 kg of product.

The inside dimensions of bags of different product shall be as under:

Type of Bag Length Width Minimum inside

area
PP Bag
880 +20 mm 600 + 20mm
0.519 m2
- 10 mm - 10 mm

Length and width both should not be short simultaneously. The dimensions of bags
shall be within above mentioned tolerance and within specified limit of minimum
inside area.

3. Fabric:

3.1. The fabric shall be woven from PP tapes conforming to IS-6192 (Latest) and shall be
free from all major weaving defects like pick points, missing tapes etc. and it shall be
free from biasness also.

3.2. The construction of the PP fabric shall be as per the specifications given below.

3.3. The bag shall be made from single piece of laminated PP woven fabric. The PP
granules shall be raffia Grade H030SG of M/s. RIL / equivalent & PP of lamination from
lamination grade H350FG of M/s. RIL / equivalent.

3.4. The bag shall be made from single piece of laminated PP woven fabric. The
GNFC_HDPE & PP_Bags_n_Code 2023-24
 appearance of bag shall be (i) Yellow for Bharat Urea (Neem coated urea) & Imported
Urea bags. Required quantity of correct quality of Master Batch should be used for
Yellow / Milky white with Blue tone appearance of the fabric and Bag as per printing
matter attached herewith. Vendor to submit sample before bulk supply for approval of
appearance of bag.

4. Calcium Carbonate (CaCO3)/Ash Content :

4.1. Testing shall be carried out by GNFC or GNFC appointed laboratory as per IS
9755:2021 Annexure-C.

4.2. Maximum limit of CaCO3 allowed is 3 . 7 % (Ash Content 2.2%). In case test result
exceeds CaCO3 limit of 3.7% (Ash Content 2.2%), the lot is to be accepted up to
5% Calcium Carbonate content (3% Ash content) with applying penalty at the rate
double by which Calcium Carbonate content is higher than 3.7% (Ash Content 2.2%).
If test result exceeds 5% of Calcium Carbonate content (Ash Content 3%), the lot is to be
rejected.

4.3. In case of more than two incidents of CaCO3 exceeding 5% (Ash Content 3%), the
supplier will be put in holiday list.

5. UV Resistance:

The woven fabric made from UV stabilized tapes shall have minimum 50% retention of
the original breaking strength, when tested after the same has been exposed to UV
radiation and accelerated weathering as per test method mentioned at IS-9755:2021
Annexure-F.

6. Lamination :

6.1. The circular woven fabric shall be laminated on outer side with virgin LDPE / PP film of
uniform thickness in lamination plant. The laminated film should overlap and seal each
other at side crease and should be kept minimum 5 mm extra and not more than 10 mm
after trimming. The lamination shall be free from pinholes, porosity, patches, tears, poor
lamination, blisters or any other visible defects.

6.2. The thickness of lamination shall be 100 gauge (25 micron) with tolerance of ± 5%. The
lamination mass shall be 23 g/m2. The lamination shall cover the entire outside area of
the fabric used in the bag.

6.3. The suppliers before dispatching the laminated bags should ensure the quality of
lamination. Any lamination failure at GNFC during sample testing or during use of
bags if noticed, the entire lot of bags shall be rejected and unused bags shall be
cross marked. Payment shall be recovered from any pending bills.

6.4. During lamination of PP fabric, required quantity of Master batch shall be used to give

GNFC_HDPE & PP_Bags_n_Code 2023-24

 Yellow tone appearance to Bag.

7. Stitching :

7.1. Stitching threads at the bottom of bags shall be postal red color.

7.2. The bottom of the bag shall have minimum 25 mm folding when measured from
outside. The bottom of bags shall have two fold (6 layers).

7.3. The bag shall be stitched at the bottom with two rows of chain stitches with number of
stitches shall be 12 ± 2 per dm. The distance between the rows shall be minimum 5
mm. The outer row shall be minimum 8 mm from the outer edge of the bottom of the
bag. The materials used for stitching shall be Polyethylene or polypropylene
multifilament yarn, spun yarn twisted thread or fibrillated tape yarn suitable for the
purpose having breaking load not less than 90 N. The material for stitching shall be UV
stabilized. The stitching shall be uniform without any loose thread or knot.

8. Strength :

8.1. The minimum breaking strength of the samples drawn from the lot of laminated bags
shall be as follows :

Lengthwise : Minimum 91.8 kgf.

Widthwise : Minimum 91.8 kgf.
Widthwise at lamination joint : Minimum 91.8 kgf
Bottom seam : Minimum 40.8 kgf.

8.2. The elongation of the laminated fabric, while testing shall not be less than 15% and
more than 25%.

9. Mesh, Denier :

9.1. The bags shall be 10 x 10 mesh with minimum 2.5 mm tape width. The bags shall
have close weaving. The denier of the tape used for fabric shall be 1000 denier for
all types of bags.

10. Mouth Of Bag :

The mouth of the bag shall be selvedge hammed or heat cut so that the tapes do not
fray.

11. Printing :

11.1. The printing will be on Single side of bags as per the art work given by GNFC. Corona
treatment shall be carried out on fabric prior to printing. Supplier shall use photo-
polymeric quality stereo to have clear printing, uniformity and better sharpness.

GNFC_HDPE & PP_Bags_n_Code 2023-24

11.2. The supplier shall have to obtain sample approval for printing matter before bulk supply. The
printing matter layout should be exactly as per the printing matter (CDR file) / sample
transparency (submitted to vendor) in terms of total matters including font type size, logo size,
spacing of letters, spacing of words, spacing of lines, 130 mm clear top space and overall size
/ dimensions of the printing matter.

11.3. Colour of printing matter should match the specification including multi-colour image. You
shall use Rub Resistant Ink / Reducer of good quality which shall pass rub resistance test.
Please specify the ink used, in the Quality Assurance Certificate.

11.4. For rub resistant test, we shall use yellow duster / buff cloth for rubbing before dispatch
of bags, you shall carry out rub resistance test and peel test at your end to avoid
rejection after receipt at GNFC.

11.5. The ink used shall give smudge free, indelible, clean marking, and resistant to UV rays.
The ink and the other ingredients to be used for such printing shall be waterproof,
scratchproof, and harmless to fabric.

11.6. Bags with colour back impression will not be acceptable. Colour should not fade
during handling and transportation of bags to various locations.

11.7. The colour shall not fade on 24 hr. Exposure to a 50% solution of Alkali and / or a 50%
solution of Urea.

11.8. Each bag for identification shall be marked with party’s code, year, month and lot
number on the bottom right hand corner. Example: If you supply 2 lots in October-23 &
2 lots in November-23 it should be printed as :

Party’s code : 23/10/1

Party’s code : 23/10/2
Party’s code : 23/11/1
Party’s code : 23/11/2

Minimum lot should be 25000 nos. Bag and shall be in multiple of 500 nos.

11.9. For identification of the supplier, code no. shall be printed on each bag at the left hand
side in line of “Month & Year of Manufacture”. Code no. shall be specified by GNFC at
the time of placement of order. You will use capital letters for code no. given to you
instead of using your company monogram.

11.10. The bag branding testing has been indicated as above. GNFC recommends that the
supplier should test the quality of branding as per the procedure narrated below, prior
to dispatch of the lot.

11.11. Test procedure and details for branding shall be as follows:

GNFC_HDPE & PP_Bags_n_Code 2023-24

12. Testing Procedure :

12.1. Prepare 50% Alkali solution by dissolving 250 g ram of sodium Hydroxide (Caustic
Soda) in ½ Liter water (preferably distilled water). This is solution ‘A’. Prepare a 50%
Urea/SSP/Imported DAP/Imported MOP solution by dissolving 250 Gram of product in
½ liter water (preferably distilled water). This is solution ‘B’. Cut three strips measuring
3 cm x 15 cm each from branded portion of the HDPE bag.

12.2. Take two glass measuring cylinder with capacity 250 ml. Take solution “A” in one and
solution “B” in another cylinder and dip one strip in each. Let these strips be dipped
for 24 hours. Keep the third strip in air for reference.

12.3. After 24 hours, the strips are to be removed from the solutions, thoroughly
washed with water and dried in air, the colour of the strips should not fade as
compared to the original strip kept in air.

13. Packing :

13.1. The bags shall be flat packed in trusses containing 500 nos. in each truss.

13.2. The trusses shall be wrapped with a HDPE of 6½ to 7 oz and stitched properly to
withstand the hazards of transportation and storage.

13.3. Each truss shall be having following marking :

m. Name of the supplier
n. Type of bags and size
o. Weight of truss and no. of bags in truss
p. Sr. No. of truss
q. Lot No.
r. Purchase Order No.

13.4. If during receipt at GNFC site, the supplier is found to make a lapse on the above
respect; such lot shall be rejected and returned to party without any notice.

13.5. If any shortages found in bales, entire lot will be counted at the cost of party. If
repeated and heavy shortages found from lots supplied, GNFC will terminate contract
during its validity and disqualify vendor from approved vendor list. The amount will
be recovered for the shortages found in the lot from due payments/Security deposit.
The counting procedure will be as per norms fixed by GNFC from time to time.

14. Inspection And Testing :

14.1. Over and above, IS 9755:2021, Sixth Revision specifications shall be followed

14.2. Inspection shall be carried out by GNFC and / or by GNFC appointed agency at GNFC
works and / or at Manufacturer’s works as per the convenience of GNFC. However,

GNFC_HDPE & PP_Bags_n_Code 2023-24

 inspection carried out by GNFC at GNFC site shall be final and binding.

14.3. The Acceptance and Penalty Norms for Bags are as mentioned here below. The
suppliers are required to study the same. Any deviations to the same are not
acceptable. Please categorically confirm in your offer that the same are studied
and are accepted without any deviation.

14.4. Whenever re-inspection of Bags/Lot is necessary after the segregation, the re-
inspection charges would be levied to party’s account as under :

i. Initial (first) inspection : Nil

j. 1st re-inspection : Rs.2000/- per lot
k. 2nd re-inspection : Rs.4000/- per lot
l. 3rd re-inspection : Rs.6000/- per lot

14.5. In case the lot still becomes unacceptable, the bags will have to be taken back by the
supplier at its cost after cross marking by GNFC on entire quantity of the lot.

GNFC_HDPE & PP_Bags_n_Code 2023-24

15. Specification for laminated PP Bharat Urea (Neem Coated Urea) / Imported Urea /
Bags :
Sr Parameter Bharat Urea (Neem Coated Urea) / Imported Urea /
No
1 Packing Capacity 45 Kg
2 Length of Bag (Inside) 880 +20 ,- 10mm
3 Width of Bag 600 +20, - 10 mm
4 Inside area of Bag (Minimum) 0.519 m2
5 Weight of individual bags 122 ± 6 % grams (Minimum 114.7 gram)
6 Average weight of sampled 122 ± 3 % grams (Minimum 118.4 gram)
bags drawn as per IS-9755 for
inspection
7 Tap width 2.5 mm
8 Mesh size 10 x10
9 Denier 1000
10 Bags laminated with LDPE / 100 gauge (25 Micron) minimum
PP film of uniform thickness
11 Colour of stitching thread of Red
bottom of bag
12 Nos. of stitches per dm (chain 12 ± 2
stitches)
13 Minimum Distance between 5 mm
two rows of stitch
14 Minimum Distance of stitch 8 mm
from outer edge
15 Bottom Folding Bag shall be double folded in 6 layers outside
minimum 25 mm and stitching shall pass through all
six layers of fabric.
16 Breaking Strength (length, width 91.8 kgf Minimum
and at lamination joint)
17 Breaking Strength of 40.8 kgf Minimum
Bottom seam
18 % Elongation 15 to 25
19 Ash Content Max 2.2%
20 Colour of printing As per GNFC print art work
21 Drop test from height of 2 No bags should rupture when subjected to minimum
meters from all side 4 nos. of drops. The bags will be dropped on the
stomach during drop tests.
22 Performance of bags during During actual use of bags in bagging plant, bags
actual use / bursting should give satisfactory performance. GNFC reserves
right to reject entire lot if excessive bursting (Beyond
0.10%) is found during use of bags. For such rejected
lot, recovery shall be made from any due payment of
party.

GNFC_HDPE & PP_Bags_n_Code 2023-24

16. Acceptance and Penalty Norms for Bharat Urea (Neem Coated Urea) /
Imported Urea Bag

Sr Defect Criteria for Acceptance Norms for Penalty

No
1 Physical Defects: (A) If such defects are observed Re-inspection charges per
Skipped branding, within 10% of inspected bags, lot shall be as under :
improper logo, hook then lot shall be accepted.
cuts, rope cuts, pin (B) If defects are observed in 1st Re-inspection : Rs.
holes, back more than 10% of inspected bags, 2000/-
impression, weaving party shall be asked for 2nd Re-inspection : Rs.
defects, printing segregation of the defective bags 4000/-
mistakes, skipped or at GNFC site. 3rd Re-inspection :Rs.
defective bottom (C) The No. of defects during 6000/-
stitching inspection after segregation shall
not exceed 10% of inspected In case the lot still
Lamination Defects : bags, otherwise party shall be becomes unacceptable
Delamination, skipped asked for re-segregation of the after 3 segregations, entire
lamination defective bags at GNFC site. lot quantity will be cross
(D) In case during bagging, if marked and will be
Type of bottom folding: segregated lot gives problem of returned back to party at
Double fold (Six layers) stretching/bursting, then the vendor’s cost.
entire lot shall be rejected and
returned to the party with Cross
(‘X’) marking on each bag.
2 Colour Fading: Colour shade / Printing matter (e) If colour shade or colour
Improper printing, shall be strictly as specified by fading in alkali / product
Printing ink, colour GNFC. Colour fading for the ink solution or printing
shade of ink, colour used shall not be acceptable. matter variation is minor
fading etc. (nearby to acceptable),
Ink to reducer Ratio shall be then lot shall be
maintained upto 0.5 will be the accepted with penalty @
acceptance limit. Rs 0.25 per bag.
(f) In case of vide variation
in colour / shade /
printing matter, the lot
shall be rejected and
returned with cross
marking.
Acceptance of above
defects with penalty will be
for one time only in entire
contract period and
thereafter lots will not be
accepted for defects of
colour fading/ shade
difference and will be
returned to party with
cross marking.

GNFC_HDPE & PP_Bags_n_Code 2023-24

Sr Defect Criteria for Acceptance Norms for Penalty
No
3 Colour Rub Resistance Branding colour shall not be In case of minor colour
Corona treatment shall removed in rub test as mentioned removal in rub test, lot can be
be carried out before in specification. accepted at the discretion of
printing. GNFC with / without penalty.
In case of major colour
removal, lot shall be rejected.
4 No of stitches per (A) The defective bags shall be
DM (12 ± 2) : accepted one time in contract
period provided seam strength is
within acceptable limit after
warning to party. Such defects
should not be repeated in further
lots supplied.
(B) In case during bagging, if lot
gives problem of stretching /
bursting, then the entire lot shall
be rejected and returned to the
party with ‘X’ marking on each
bag and payment recovery of
such rejection shall be made from
due bills.
5 Weight (gram) (A1) On individual bag : - 6% (I) Penalty shall be 10
(A2) Average weight of samples paise /gram/bag from 122
drawn as per IS 9755 2021 Fifth gram and shall be on total
Revision for inspection: - 3% quantity of lot.
(B) If average weight as per (A2)
is up to -3% and weight of (II) Re-inspection charges
individual sample bag is within - per lot shall be as under :
6%, lot shall be accepted.
1st Re-inspection : Rs.
(C) If average weight as per (A2) 2000/-
is found below -3% and if 2nd Re-inspection : Rs.
individual sample bag is within - 4000/-
6% limit, lot shall be accepted with 3rd Re-inspection :Rs.
penalty. 6000/-
(D) If average weight as per (A2)
is found less than -5%, or any
individual bags found less than -
6%, then lot shall be given for
segregation at GNFC site for
removal of defective bags. Such
segregation would be allowed
maximum 3 times per lot. Even
after three segregations, if lot is
not passing, it will be rejected and
returned to party with “X” marking.

GNFC_HDPE & PP_Bags_n_Code 2023-24

Sr Defect Criteria for Acceptance Norms for Penalty
No
6 Size of Bag (A) The tolerance in length and Re-inspection charges per
width will be allowed +20, -10mm. lot shall be as under :
However, length and width both
should not be short 1st Re-inspection : Rs.
simultaneously and minimum 2000/-
area as mentioned in enquiry 2nd Re-inspection : Rs.
specifications should be 4000/-
available. 3rd Re-inspection :Rs.
(B) If size of bag/ minimum area 6000/-
of bag is not within specified
norms in more than 10% of In case the lot still
sampled bags, then lot will be becomes unacceptable
given for segregation of removal after 3 segregations, entire
of defective bags. Such lot quantity will be cross
segregation will be allowed marked and will be
maximum 3 times per lot. Even returned to party.
after three segregations, if lot is
not passing, it will be rejected and
returned to party with cross
marking.
7 Breaking Strength : (A) If strength of individual bag is
(Width /Length / greater than 82.6 kgf and average
Lamination joint) : of all inspected bags is equal to or
Minimum 91.8 Kgf more than 91.8 kgf, then lot shall
2 samples will be cut be accepted.
from each bag for each
length, width and (B) If strength of individual bag is Penalty shall be :
lamination joint to be greater than 82.6 kgf and average 15 Paise /Kgf of average/
strength tested as per of all inspected bags is between Bag (On entire lot quantity)
IS-9755. 82.6 to 91.8 Kgf, lot shall be
accepted with penalty.

(C) If strength of any individual

bag or average of all inspected
bags is below 82.6 kgf, the entire
lot shall be rejected in both
individual as well as average
case. Rejected lot shall be
returned to the party with cross
marking.
8 Bottom Seam Strength (A) If strength of individual bag is
40.8 Kgf Minimum greater than 36.7 kgf and average
2 samples will be cut of all inspected bags is equal to or
from each bag to be more than 40.8 kgf, then lot shall
tested as per IS-9755. be accepted.

GNFC_HDPE & PP_Bags_n_Code 2023-24

Sr Defect Criteria for Acceptance Norms for Penalty
No
(B) If strength of individual bag is Penalty shall be :
greater than 36.7 kgf and average 15 Paise /Kgf of average/
of all inspected bags is between Bag (On entire lot quantity)
36.7 to 40.8 Kgf, lot shall be
accepted with penalty.

(C) If strength of any individual

bag or average of all inspected
bags is below 36.7 kgf, the entire
lot shall be rejected in both
individual as well as average
case. Rejected lot shall be
returned to the party with cross
marking.
9 % Elongation (Length (A) If % elongation (Length and
and widthwise (15 to widthwise) of individual bag is
25%). more than 13% and average
elongation is observed within the
range of 15 to 25% then lot shall
be accepted.

(B) If % elongation of individual Penalty shall be:

bag is more than 13% and 15 Paise / % elongation of
average elongation is between 13 average/ Bag(On entire lot
to 15% then lot shall be accepted quantity)
with penalty.

10 Drop Test: (A) During the drop test, no

Bag shall be dropped 4 sample bag shall rapture. (B) if
times from a height of 2 during drop test, the bags are
meters. The bag shall found to rupture, the lot shall be
be rejected and shall be returned
dropped on stomach with ‘X’ marking.
only.
11 Bursting Rate (I) The lot during actual bagging
Observed during use operation if found with bursting
of bag rate exceeding limit of 0.10%,
GNFC will not use such lots and
same will be rejected and
returned to vendor. In case lot
exceeding the bursting rate
beyond 0.10% and if used, GNFC
will levy penalty at 3 times the
actual cost of bags bursted.

GNFC_HDPE & PP_Bags_n_Code 2023-24

Sr Defect Criteria for Acceptance Norms for Penalty
No
(II) Lot giving problem of
excessive bursting (beyond
0.10%) will be returned to vendor
after cross marking.

GNFC_HDPE & PP_Bags_n_Code 2023-24