DRAFT TANZANIA STANDARD            TDC 3 (1147)  CD 3 
                                                                                                              First Edition             
 
 
                                     
©TBS 2018 All right reserved                                                                      First edition 202 2 
 
 
               Cushion covers — Specification  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
TANZANIA BUREAU OF STANDARDS   
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©TBS 2018 All right reserved                                                                      First edition 202 2 
              TDC 3 (1147)  CD 3 
Foreword  
This Draft Tanzania Standard is being developed by the Household  Textile Technical Committee under 
supervision of the Textile and Leather Division Standards Committee and it is in accordance with the 
procedures of the Bureau.  
 This Draft Tanzania Standard has been prepared with assistance drawn from:  
 SANS 1261 – 1, Performance requirements for retail textiles, Part 1 - Household piece goods 
 and articles.  
 SANS 1394 -2, Duvets and pillows Part 2: Synthetic fibre  filled.  
 IS 12649 – Treated/coated fabrics for various applications – Guide for selection.  
 TZS 1423, Textile upholstery fabric specifications.  
 TZS 2510, Leather for upholstery Specifications.  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
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©TBS 2018 All rights reserved                                                                      First edition 2022  
 1 Scope  
This Draft Tanzania Standard specifies the requirements , sampling plan  and test methods for cushion 
covers made of textile fabrics or leather.  
2 Normative References  
For the purpose of this Draft Tanzania Standard the following references shall apply :  
a) TZS 4 Rounding off numerical values.  
b) TZS 21 Textiles - Woven or knitte d fabrics - Determination of mass per unit length and -    per unit 
area.   
c) TZS 22 Textiles - Woven fabrics Determination of breaking load and extension.  
d) TZS 24 Textiles - Tests for colour fastness – Colour fastness to washing: Test 4.  
e) TZS 26 Textiles - Determination of conductivity, pH, water -soluble matter, chloride and sulphate in 
aqueous extracts.   
f) TZS 27 Textiles: Determination of dimensional changes of fabrics by cold water immersion.   
g) TZS 40 Textiles - Tests for colour fastness – Colour fastness to light: Daylight.  
h) TZS 44 Textiles - Tests Woven or knitted fabrics  - Determination of length and width.  
i) TZS 27  
j) TZS 138 Textiles - Test for colour fastness to rubbing.  
k) TZS 208   Leather – Physical and mechanical strength - Determinatio n of tear load.  
l) TZS 529 Textiles: Test for colour fastness to dry cleaning.  
m) TZS 2584 -1:2019/ISO 9073 -1: 1989 Textiles – Test methods for nonwovens – Part 1 - 
Determination for mass per unit area.  
n) TZS 2584 -3:2019/ISO 9073 -3: 1989 Textiles – Test methods for nonwovens – Part 3 - 
Determination of tensile strength and elongation.  
o) TZS 2584 -4:2019/ISO 9073 -4: 1997 Textiles – Test methods for nonwovens – Part 4 - 
Determination of Tear resistance.  
p) TZS 2584 -5:2019/ISO 9073 -5: 2008 Textiles – Test methods for nonw ovens – Part 5 - 
Determination of resistance to mechanical penetration (ball burst procedure).  
q) ISO 13936 – 1, Textiles — Determination of the slippage resistance of yarns at a seam in woven 
fabrics — Part 1: Fixed seam opening method.  
r) ISO 13936 – 2, Textile s — Determination of the slippage resistance of yarns at a seam in woven 
fabrics — Part 2: Fixed load method.  
s) ISO 13937 - 1, Textiles — Tear properties of fabrics — Part 1: Determination of tear force using 
ballistic pendulum method (Elmendorf).  
t) ISO 6940, Textile fabrics — Burning behaviour — Determination of ease of ignition of vertically 
oriented specimens.   
 
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©TBS 2018 All rights reserved                                                                      First edition 2022  
 u) ISO 6941, Textile fabrics — Burning behaviour — Measurement of flame spread properties of 
vertically oriented specimens  
3 Terms and Definitions   
 
For the purpose of this Draft Tanzania Standard the following definitions shall apply:  
3.1 cushion   
bag of cloth or leather stuffed with a mass of soft material, used as a comfortable support for sitting or 
leaning on.  
3.2 cushion  Cover    
fabric  cover, often with a decorative design, designed to protect a cushion.  
4 Requirements  
4.1 Materials  
4.1.1 Textile fabric  
The fabric used in the manufacture of cushion  cover shall be free from dressing and filling materials and 
from substances liable to c ause subsequent tendering.  
4.1.1.1 Fabric structure  
The fabric structure shall be woven, knitted or non -woven.  
4.1.1.2 Fibre composition and proportion  
The fibre composition of the fabric shall be of any natural or manmade textile fibre of quality as specified in 
this Draft Tanzania Standard.  
4.1.2 Leather  
The grain of the leather for making up the cushion  cover shall be free from flay cuts and grain defects that 
affect its appearance.  
The flesh side of the leather shall have been shaved and shall be  free from any cuts and loose flesh. The 
leather shall be firm, pliable and shall not be pippy.  
The leather used in manufacture car seat cover shall comply with TZS 2510.  
4.2 Design and construction  
4.2.1 General    
The design and construction of cushion cover including colour shall be agreed upon the buyer and seller .    
4.3 Flammability  
The burning behaviour of cushion covers fabric shall be tested in accordance with 16 CFR Part 1610 and 
be of at least Class 1. See  ISO 6940 and ISO 6941.  
4.4 Performance requirements     
A cushion cover shall comply with the requirements given in Table 1. 
 
  
 
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©TBS 2018 All rights reserved                                                                      First edition 2022  
 Table 1 – Performance requirements for cushion covers.  
SN Parameters  Requirements  Test Methods  
  Uncoated 
fabric  Coated 
fabric  Non-
woven 
fabric  leather  Leather 
test 
methods  Woven/knitted 
fabrics test 
methods  Non-woven test 
methods  
    1 Mass  per unit area 
(g/m2), min  20 300 90 - - TZS 21  TZS 2584 -
1:2019/ISO 9073 -
1: 1989  
2  
  Breaking strength, N, 
min.  
a) Longitudinal  
b) Transverse   
 
200 
200  
 
250 
150  
 
350 
200  
 
200  
 
TZS 212   
 
TZS 22   
  
  
TZS 2584 -
3:2019/ISO 9073 
-3: 1989  
3 Elongation at break (%), 
min  
a) Longitudinal  
b) Transverse   
 
50 
100  
 
50 
100  
-  
-  
-  
TZS 22  
 TZS 2584 -
3:2019/ISO 9073 
-3: 1989  
4 Tear strength, N, min, 
(velour, flocked and 
woven fabrics only)  
- Warp  
- Weft  
 
32 
16  
 
5 
5  
 
80 
80  
 
30  
 
TZS 208   
 
13937 – 1 
 TZS 2584 -
4:2019/ISO 9073 
-4: 1997  
5 Seam Strength  
a) Resistance to 
opening at 
seam, N, min  65 65 65 - - 
ISO 13936 – 1 
  
- 
b) Strength at 
seam, N,  min 90 90 90 - - 
ISO 13936 – 2  
- 
6   
 Bursting strength, kPa, 
min. (knitted fabrics 
only)          400 
 400 150 - - TZS 22  
 TZS 2584 -
5:2019/ISO 9073 
-5: 2008  
7   
   Resistance to flat abrasion  
For uncoated fabric  
a) Rubs to end point, 
min. 
b) Change in shade 
after 4,000 rubs, 
rating, min    
10,000  
 
 
4   
 -  
1,000  
 - - TZS 412  TZS 412  
   
  For coated fabric 
(minimum circles)  - 700  - - - - 
8 Flexural endurance, min  100,000 
cycles 
without 
damage  300,000 
cycles 
without 
damage  
 - 20,000 
cycles 
without 
damage  TZS 206  TZS 206  - 
9   
  
  
  
  Dimensional changes 
on washing %, max.  
 
a) Warp/ wale direction  
b) Weft/course  
 
 
 
 
3  
 
 
-  
 
 
 
 
3  
 
 
 
 -  
 
 
-  
 
TZS 27 
 
  
 
TZS 27 
  
 
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 direction      2   3 
10 
  
  Colour fastness rubbing  
   
a) Dry, min  
b) Wet, min   
4   
4  
 4   
4  
4   
4  
 4   
4  
TZS 211  
   
TZS 138  
   
TZS 138  
 
11 
  Colour fastness to dry 
cleaning; Shade 
change, min  
     
4  
4  
4  
4  
ISO 
15702  TZS 529  
 TZS 529  
 
12   Colour fastness to light,  
min  
3  
3  
3 -  
- TZS 40  TZS 40  
13 Colour fastness to 
washing, min  
a) Change in colour  
b) Staining on 
transfer clothes   
4 
 
4  
4 
 
4  
 
4 
 
4  
4 
 
4  
 
ISO 
15703  TZS 24  TZS 24  
 
14 
 Colour fastness to 
water spotting, min  4 4  
4 4  
ISO 
15700  TZS 531  TZS 531  
 
5.Packing  
5.1 Unit packaging  
Each cushion cover shall be packed with suitable material.  
5.2 Bulk packaging  
The cushion covers shall be packed with suitable material.  
6 Marking  
6.1 Unit packages  
The following information shall be indelibly marked on a label sewn or marked at an appropriate position on 
the cushion cover;  
a) Manufacturer’s name, address and registered trade mark;  
b) Name and description of the product;  
c) Composition of the material of the cushion cover;  
d) Instructions for use;  
6.2 Bulk packages  
The following information shall indelibly be labelled/printed on the bulk package;  
a) Manufacturer's name, address and registered  trade mark;  
b) Number of unit packages in the bulk package;  
c) Gross Mass;  
d) County of origin : 
  
 
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©TBS 2018 All rights reserved                                                                      First edition 2022  
 7. Sampling  
7.1 Lot 
The quantity of the cushion cover delivered to buyer against one despatch note shall constitute a lot.  
7.2 The conformity of the lot to the various requirements specified in this Draft Tanzania Standard shall be 
determined on the basis of tests carried out on the samples selected from the lot.  
7.3 Unless otherwise agreed, the number of pieces selected at rando m for inspection shall be in 
accordance with Table 2.  
Table 2 - Sample Size and Permissible Number of Non -conforming pieces.  
Lot size  Sample size  Permissible number of non -
conforming pieces  Sub – sample size  
Up to 25  3 0 2 
26 to 50  5 0 2 
51 to 150  8 0 3 
151 to 100  13 1 3 
301 to 500  20 1 5 
501 to 1000  32 2 5 
1001 and above  50 3 8