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BDS 837: 1976
BANGLADESH STANDARD
SPECIFICATION FOR
BANGLADESH HESSIAN, Part II
10 oz (305 g/m2) and 7 ½ oz (229 g/m2) at 16 percent contract regain
Sl.
Table 1. Particulars of Hessian
(Clause 2.1)
Characteristic
Requirement
No.
i)
Weight per sq yd
Or, Weight per sq metre
Tolerance + 6 percent
Type I
Type II
10 oz/40 in
7½ oz/40 in
305 g(10.7 oz)
229 g (or 8.0 oz)
+ 18 g
+14 g
- 2 percent
-5g
THE PAKISTAN
JUTE MILLS ASSOCIA
Information on description and specification of J
Sacking:
Pak Grain Sack
Light Weight Bag
44 x 281/2
44 x 281/2
1100 grm
900 grm
Hessain:
Hessain Cloth
45/9 OZ
50/8 OZ
50/9 OZ
45/10 OZ
45/11 OZ
36 x 22
37 x 23
34 x 22
35 x 23
Hessian Bags
12.50 O
13.50 O
09.50 O
11.05 O
Twine:
Twine
3/16
3/16
2/40
2/40
3/20
3/30
-6g
(Inhanks, Spools and B
(Brown)
(Special)
(Brown)
(Special)
(Brown)
(Brown)
ii)
Warp (porter)
11
9
Or, Ends per dm
47
35
Tolerance
±2
+2
-1
iii)
Shots per inch
12
9
Picks per dm
47
35
Tolerance
±2
+2
-2
iv)
Width in inches
40
40
or width in cm
102
102
+ 3 cm
+ 3 cm
- 0 cm
- 0 cm
112 kg
92 kg
(or 48 lb)
(or 202 lb)
120 kg
78 kg
(or 264 lb)
(or 171 lb)
36 kg
29 kg
(or 80 lb)
(or 65 kg)
39 kg
25 kg
(or 85 lb)
(or 55 lb)
Tolerance
v)
Breaking load:
a) Strip method
(10x20 cm)
Warpway
Weftway
b) Grab method
(1x3 in)
Warpway
Weftway
Note: Width of Hesssians shall be 40 inches or 102 cm or as specified in the agreement between the buyer
and seller; if the agreed width of hessian is below 102 cm, the tolerance shall be +3 cm and
-0
if agreed width is about 102 cm, the tolerance shall be +3 cm.
-0
Table 2 : Requirements of Packed Bales or Rolls
(Clause 2.2)
Sl.No.
Characteristic
Requirement
Type I
Type II
17%
17%
i)
Moisture regain, Max
ii)
Contract mass (weight) of a bale
1252 lb
930.5 lb
(see note 1)
569 kg
427 kg
Calculated on the basis
Calculated on the
of a formula given in
basis of a formula
Note 1 below
given in Note 1 below
iii)
iv)
Contract mass (weight) of a roll
Corrected net mass (weight) of a
Not less than contract mass
bale or roll (see note 2)
v)
vi)
Length of hessian per bale
2000 yd
2000 yd
(see note 3), Min
1829 m
1829 m
Length of hessian per roll
As specified in an agreement between the buyer
& the seller
vii)
viii)
Permissible number of medium
3 medium
3 medium
cuts and short pieces per bale
cuts Max
cuts, Max
or
or
2 medium cuts
2 medium cuts
and 1 short piece,
and 1 short piece,
Max
Max
Number of joints in a roll(s) and
As agreed to between the buyer and the seller
number of such joined rolls in a
consignment (see note 4)
ix)
Note 1
Oil content, Max (see note 5)
6 percent
6 percent
Contract mass of a bale or roll is calculated as follows:
Contract mass of a bale or roll in kg = nominal width (cm) x marked length (m) x mass (g/m2)
100
1000
Contract mass (weight) of a bale given in the table is on the basis of 102 cm nominal
width and marked length of 1829 m per bale.
Note 2
Corrected net mass (weight) of a bale or roll is calculated as follows:
Corrected net (weight) of a bale or roll = net weight x (100+contract regain percent)
100 + average moisture regain percent
Note 3
Length of hessian per bale shall be 200 yd or 1829 m or as specified in an agreement
between the buyer and the seller.
Note 4
The seller shall indicate on the roll (s) the number of (joints, if any).
Note 5
The specified oil content value of 6 percent corresponds to an oil content of about 5
percent when determined on dry deoiled material plus 16 percent regain.