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BDS 905: 1979
BANGLADESH STANDARD
SPECIFICATION FOR HESSIAN BAGS
Table 1 : Particulars of Hessian Bags
(Clauses 3.4 and 4.1)
Sl.
Characteristics
Requirement
No.
i)
Type 1
Type II
+4
+4
-0 cm
-0 cm
+4
+4
Tolerance for dimension of a bag:
a) Outside length (see Note 1)
b) Outside width (see Note 2)
-0
ii)
iii)
cm
-0 cm
Tolerance for weight of a bag over
+8
+8
specified for calculated bag weight
-2 percent
-2 percent
Breaking load of cloth (see 4.3)
a) Strip method (10x20 cm):
Warpway
112 kg (248 lb)
92 kg (202 lb)
Weftway
120 kg (264 lb)
78 kg (171 lb)
b) Grab method (1x3 in):
Warpway
36 kg (79 lb)
29 kg (55 lb)
Weftway
39 kg (85 lb)
21 kg (46 lb)
Warpway
34 kg (74 lb)
25 kg (55 lb)
Weftway
36 kg (79 lb)
21 kg (46 lb)
Warpway
110 kg (243 lb)
90 kg (198 lb)
Weftway
115 kg (253 lb)
75 kg (165 lb)
Warpway
35 kg (77 lb)
29 kg (65 lb)
Weftway
37 kg (82 lb)
24 kg (53 lb)
Warpway
34 kg (74 lb)
18 kg (40 lb)
Weftway
34 kg (74 lb)
18 kg (40 lb)
Ends per decimetre:
47
38
Tolerance
+2
+2
-2
-1
(11.0)
(9.0)
Picks per decimetre
47
35
Tolerance
+2
+2
-2
-1
(12.0)
(9.0)
c) Breaking load of seam
(on 5x20 cm strip):
iv)
Breaking load of cloth (see 4.3.1):
a) Strip method (10x20 cm):
b) Garb method (1x3 in):
c) Breaking load of seam
(on 5x20 cm strip)
v)
(or Porter)
vi)
(or Shots per in)
vii)
Moisture regain
viii) Contract regain
ix)
Oil content on dry de-oiled material
17 percent, Max
17 Percent, Max
16 percent
16 percent
6 percent, Max
6 percent, Max
Not less than contract
Not less than
weight
contract weight
basis
x)
Corrected net weight of a bale
Note: 1- for bags of dimensions of 137.0 cm (54 in) or below the tolerance shall be +4 cm .
-0
Note: 2- for bags of dimensions more than 137.0 cm (54 in) the tolerance shall be +4 percent on the bag
dimension.
-0
4.3
When the contract is on the basis of cloth construction, the breaking strength values of the cloth
and seam shall be given in table 1 (serial no. iii) with respect to warpway, weftway and seam
respectively.
4.3.1
When the contract is on the basis of the bag weight and if the nominal weight of the cloth derived
from such weight is less than 305 g/m² in case of type 1 and 229 g/m² in case of type II (but
without considering twine weight yields cloth weight as 305 g/m² or 229 g/m²). The breaking
strength value of the cloth and seam shall be as given in table 1 (serial no. iv) with respect to
warpway, weftway and seam respectively.