KENYA STANDARD        DKS 2908 :2020 
ICS.61.020   
  
 
 
 
 
 
 
 
 
 
 
 
 
 
Cotton Flannel  — Specification  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
© KEBS 20 20             First Edition  2020 
 DKS 2908 : 2020  
 
ii  © KEBS 2020  — All rights reserved  TECHNICAL COMMITTEE REPRESENTATION  
 
The following organizations were represented on the Technical Committee:  
 
Moi University, Eldoret - Department o f Textile Engineering  
Kenya Industrial Research and Development Institute (KIRDI)  
Spinners & Spinners Ltd  
Spin Knits Ltd, Nakuru  
Ken Knits Ltd, Eldoret  
Kenya Association of Manufacturers (KAM)  
Ministry of Defence -Research and Development  
Kenya Prisons  
Keny a Bureau of Standards — Secretariat  
 
 
 
 
 
 
  
 
 
 
 
 
REVISION OF KENYA STANDARDS  
 
In order to keep abreast of progress in industry, Kenya Standards shall be regularly reviewed. 
Suggestions for improvements to published standards, addressed to  the Managing Dire ctor, Kenya 
Bureau of Standards, are welcome.  
 
 
 
 
 
© Kenya Bureau of Stand ards, 2020  
Copyright. Users are reminded that by virtue of Section 25 of the Copyright Act, Cap. 12 of 2001  of 
the Laws of Kenya, copyright subsists in all Kenya Standards and excep t as provided under Section 
26 of this Act, no Kenya Standard produced by Kenya Bureau of Standards may be reproduced, 
stored in a retrieval system in any form or transmitted by any means without prior permission in writing 
from the Managing Director .  
 
 
 
 
 
 
  KENYA STANDARD        DKS :2908 2020  
ICS.61.020   
© KEBS 2020  — All rights reserved    iii   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  DKS 2908 : 2020  
 
iv  © KEBS 2020  — All rights reserved   KENYA STANDARD        DKS :2908 2020  
ICS.61.020   
© KEBS 2020  — All rights reserved    v  
 
 
 
 
 
 
 
 
 
 
 
 
Cotton Flannel  — Specification  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
KENYA BUREAU OF STANDARDS (KEBS)  
Head Office:  P.O. Box 54974, Nairobi -00200, Tel.: (+254 020) 605490, 602350, Fax: (+254 020) 
604031  
E-mail: info@kebs.org,  Web:http://www.kebs.org   
 
Coast Region     Lake Region          Rift Valley Region  
P.O. Box 99376, Mombasa -80100   P.O. Box 2949, Kisumu -40100        P.O. Box 2138, Nakuru -
20100  
Tel.: (+254 041) 229563, 230939/40   Tel.: (+254 057) 23549, 22396        Tel.: (+25 4 051) 210553, 
210555  
Fax: (+254 041) 229448   Fax: (+254 057) 21814  DKS 2908 : 2020  
 
vi  © KEBS 2020  — All rights reserved  Foreword  
 
This Kenya Standard has been prepared by the Technical Committee on Knitted Fabrics under the 
guidance of the Standards Projects Committee , and it is  in accordance with the proc edures of the 
Kenya Bureau of Standard s. 
  
KENYA STANDARD          DKS 2908 : 2020  
 
 
© KEBS 2020  — All rights reserved    1  
 
 
1 Scope  
 
This Kenya Standard specifies the requirements and test methods for cotton  flannel . 
 
2 Normative references  
 
The following referenced documents are indispensable in the application of this document. F or dated 
references, only the edition applies. For undated references, the latest edition of the referenced 
document including any amendments applies.  
 
KS EAS 257, Methods for estimation of moisture, total size or finish, ash, fatty matter and 
determinatio n of water soluble matter in textiles  
KS 08 -665, Specification for textile labels  
KS ISO 105 -B01, Textiles — Tests for colour fastness — Part B01: Colour fastness to light: Daylight  
KS ISO 105 -B02 Textiles — Tests for colour fastness  — Part B02: Colour fas tness to artificial   light: 
Xenon arc fading lamp test  
KS ISO 3758 , Textile s — Care labe lling code using symbols  
KS ISO 3759, Textiles  — Preparation, marking and measuring of fabric specimens and garments in 
tests for determination of dimensional change  
KS ISO 6330 , Textile  — Domestic washing and drying procedures for textile testing    
KS ISO 105 -C10, Textiles — Tests for colour fastness — Part C10: Colour fastness to washing with 
soap or soap and soda  
KS ISO 13934 -1, Textiles — Tensile properties of Fabric s-Strip method  
KS ISO 3801, Textiles — Woven fabrics — Determination of mass per unit length and mass per unit 
area 
KS ISO 24153 - Random sampling and randomization procedures  
KS ISO 3071 -Textiles , Determination of pH of aqueous extract  
 
3 Terms and definit ions  
 
Flannel -fabric  made in plain or twill  weave , it is napped, most often on both sides  
 
4.0General requirements  
 
4.1The fabric shall be of 100% cotton when tested in  accordance with ISO  1833 -11  
4.2The cloth shall be woven in plain weave  
4.3 The clo th shall be raised on one or both sides  
4.4 The cloth shall be free from spinning, weaving and processing defects.it shall be free 
dressing and filling and substances liable to cause subsequent tendering.  
4.5 the length and width of  each piece under test s hall not va ry at any place by more than 1  % 
below the declared value.  This shall be determine d in accordance with KS ISO 22198 . 
 
5 Specific Require ments    DKS 2908 : 2020  
 
2  © KEBS 2020  — All rights reserved  5.1 T he breaking strength and mass per unit area of cotton shall be as specified in table 1  
 
5.2 T he chemical and other requirements of the cotton flannel shall confo rm to the those given in table  
 
 
Table 1:Physical Properties of Cotton Flannel  
 
Characteristic   
Minimum Requirement  
     
  
Method of T est 
 
Breaking 
strength, N       Warp  
 350 
  
KS ISO  13934 -1 
Weft 
 300 
Mass,  g/m2 165 KS ISO 3801  
Tearing strength  25 KS ISO 13937 -2 
Threads per cm  20 KS ISO 7211 -4 
 
 
 
Table 2:Chemical Properties and other Requirements of Cotton Flannel  
 
COLOUR FASTNESS 
TO: Minimum requirement  
  
METHOD OF 
TEST  
 Colour Change  Staining  
Light  4 - KS ISO 105 -B01 
KS ISO 105 -B02 
Washing  4 4 KS ISO 105 -C10:  
Hot pressing  4 4 KS ISO 105 -X11 
Perspiration  4 4 KS ISO 105 -E04 
 
Rubbing  4 4 KS ISO 105 -X12 
Colourfastness to saliva     
Dimension
al changes, 
% max  
 
 Warp  3 KS ISO 6330  
Procedure 9N  
KS ISO 3759  Weft 2 
PH 6-8.5 KS ISO 3071  DKS 2908 :2020  
 
© KEBS 2019  — All rights reserved    3   
  DKS 2908 : 2020  
 
4  © KEBS 2020  — All rights reserved   
 
6.0 Marking  and packing  
 
6.1 Each fleece jacket  shall have a labels complying with KS 08-665 and with the following 
information:  
 
i) manufacturer’ s name or registered trade mark;  
ii) country of manufacture . 
iii) Care instructions in accordance KS ISO 3758  
iv) Length and width  
 
 
6.2 Each cotton flannel shall  be properly packe d to keep it free from any soiling or damage.  
 
7.0 Sampling  
Sampling shall be done in accordance with ISO 24153.