KENYA STANDARD                                                            DKS 779: PART 3: 2020  
                                                                                                                                   ICS 59.080.60  
 
……………..  
 
  
 
 
 
 
 
           Specification for carpets  
 
             Part 3.  Woven carpets  
 
 
 
  
   
 
 
 
 
 
 
 
 
 
 
   KEBS 2020      Second  Edition 2020 
  
TECHNICAL COMMITTEE REPRESENTATION  
 
 
The following organizations were represented on the Technical Committee:  
 
Kenya In dustrial Research and Development Institute (KIRDI)   
Premier Bag & Cordage  
Curtains and Covers  
Bonar (EA) Ltd.  
Flexpac International  
Spinners & Spinners  
Thika Cloth Mills  
Ministry of Finance — Monopolies and Prices Commission  
General Motors  
Kenya Defence F orces (KDF)  
Intertek International Ltd  
Cotecna Inspection Kenya  
Kenya Bureau of Standards — Secretariat  
 
 
 
 
 
 
 
 
 
 
 
 
 
  
REVISION OF KENYA STANDARDS  
 
In order keep abreast of progress in industry, Kenya standards shall be regularly reviewed. Suggestion 
for improvements to published standards addressed to the Managing Director, Kenya Bureau of 
Standards, are welcome.  
 
 
© Kenya Bureau of Standards, 2015 
 
Copyright. Users are reminded that by virtue of section of the Copyright Act, Cap. 130 of the Laws of 
Kenya,  copyright subsists in all Kenya Standards and except as provided under section 7 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 without prior permissio n in writing from the Managing Director.  
 
 
 
 
 
   
 
 
  
  
 
Specification for carpets  
 
Part 3.  Woven  carpets  
 
 
 
 
 
 
 
 
 
 
 
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, 2 2396        Tel.: (+254 051) 210553, 
210555  
Fax: (+ 254 041 ) 229448    Fax: (+254 057) 21814   
 
 Foreword  
 
 
This Part of KS 779 has been prepared by the Technical Committee on Textile Floor Coverings under the 
direction of the Textile Industry Standards Committe e and it is in accordance with the procedures of the 
Bureau.  
 
Weaving  is the traditional method of making carpets and woven carpets still retain a reasonable share in 
the carpet industry due to their unique qualities.  
 
This Part of this Kenya Standard spec ifies minimum requirements of woven carpets for domestic, 
contract and other uses.  
 
During the preparation of this Part of this standard reference was made to the following documents:  
 
JIS: L4404: 1997 Woven carpets.  
 
SANS 1375 :2012 Specification — Textil e floor coverings (pile construction).  
 
Acknowledgement is hereby made for the assistance received from the above sources.  
 
 
 
 
 
 
 
 
  
 
  
 SCOPE  
 
This Part of KS 779 Kenya Standard specifies the requirements for woven carpets to be used as floor 
coverings.  
 
1.0 Normative References:  
 
The following standards were used as normative references.  
 
KS ISO 105 -B01:2014 - Textiles — Tests for colour fastness — Part B01: Colour fastness to light: Daylight  
KS ISO 105 -B02:2014 - Textiles — Tests for colour fastness — Part B02:  Colour fastness to artificial light: 
Xenon arc fading lamp test  
KS ISO 105 -X12:2016 -Textiles — Tests for colour fastness — Part X12: Colour fastness to rubbing  
KS 835 -2:1989 - Methods for test for textile floor coverings - Part 2: Determination of construc tional details  
KS 835 -3:1988 - Methods of test for textile floor coverings - Part 3: Determination of delamination strength 
of secondary backing  
KS 835 -7:1990 -Method of test for textile floor Coverings -Part 7: Determination of turf withdrawal force  
KS 835 -9:1988 - Methods of test for textile floor coverings - Part 9: Determination of colour fastness to 
shampooing  
KS ISO 1833 -Textiles — Quantitative chemical analysis (all parts)  
KS ISO 2424:2007: Textile  floor coverings — Vocabulary  
KS ISO 10361:1990 -Textiles floor covering - Produc tion of changes in appearance by means of 
Vettermann drum and Hexapod tumbler testers.  
 
3.0 Definitions  
 
For the purposes of this Kenya Standard, the definitions given in KS ISO 2424 shall apply.  
 
 
4.0 Classification  
 
The carpets shall be classified into the following four types according to the type of pile.  
 
4.1 Cut pile carpet  
 
4.2 Loop pile carpet  
 
4.3 Cut and loop pile carpet  
 
4.4 Woven carpet without pile  
 
                 
 
 5 Requirements  
 
5.1 Tensile strength  
 
The tensile strength of carpet shall be a min imum of 1000 N in both warp and weft  directions.  This shall 
be tested in accordance with KS ISO 13934 -1  
   
5.2    Pulling  resistance of pile yarn  
 
The pulling  resistance of pile yarn shall be  not less than 4.5 N.  This shall be tested in accordance  with 
KS 0 8-835 Part 7  
 
5.3 Wear  
 
The wear of woven carpets due to impact, friction and pressure shall be as given in Table 1.  
 
Table 1 — Wear of carpets  
 
   
Type of pile  
 Percentage loss in 
thickness at 13 000 rev. 
(max.)   
Percentage loss in mass 
at 13 000 rev. (max.)  
 
Cut pile  35 15 
Loop pile  25 15 
Cut and loop pile  35 15 
 
The wear of carpets shall be tested in accordance with KS ISO 10361.  
 
 
5.4 Colour fastness  
  
The colour fastness of the pile yarn or use surface where there is no pile shall be as given in Table 2. 
 
      Table 2 — Colour fastness requirements  
 
Agency  Numerical rating (min.)  Test method  
Light  5  KS ISO 105 B01 or   
 KS ISO 105 B02  
Dry rubbing  4  
KS ISO 105 X12  
 
 Wet rubbing  3 
Shampooing  3 KS 08 -835 Part 9c) 
 
 
 
 
 
  
 5.5 Fibre composition  
 
 
The fibre composition of the pile yarn (or use surface where there is no pile) shall be as declared subject 
to a tolerance of   5% for blends.   The fibre  composition shall be tested in accordance with  relevant part 
of KS ISO 1833  
 
 
5.6 Dimensions of carpet  
 
The dimensions of carpet roll or piece shall be as declared subject to the tolerances given in Table 3 . The 
dimensions shall be tested in accordance with KS 835 -2 
 
     Table 3 — Dimensional tolerances  
 
Dimension  Tolerances, percentage (max.)  
 
Length or Wi dth +2 
-1 
 
5.7 Mass of pile  
 
The mass of the pile or the standing portions of piles shall be as specified in Table 4.  
 
Table 4 —  Mass of pile  
 
 
Fibre  
 Mass in g/m2 
(min.)  
Wool  650 
Acrylic, including  modacrylic  620 
Polyester  650 
Nylon  500 
Polyprop ylene  450 
 
NOTE   In case of blends the total mass of pile shall be worked out from the contributing proportions of 
the fibre composition of the pile.  
 
 
The mass of pile shall be tested in accordance with KS 08 -8357) Part 2, Clause10.  
 
 
 
 
 
                                                 
  
 
 5.8 Pile densit y 
 
The piles shall be distributed evenly with the density as given in Table 5.  
 
Table 5 — Pile density  
 
 
 
6 Packing  
 
6.1 Carpets shall be rolled and securely packed to form a compact roll.  
The r olled carpets shall be wrapped with a suitable material so as to avoid damage and soiling.  
 
6.2    Where carpets are sold as tiles , tiles of the  same fibre composition, colour and pile type shall be 
packed together in suitable boxes.  
 
 
7       Marking  
 
7.1 Carpet rolls  
 
Carpets rolls shall bear the following information in legible and indelible marking on a label securely 
attached to each piece or roll:  
 
a) manufacturer’s name, address or registered trade mark;  
 
b) the marking “ Woven Carpet”;  
 
c) type of pile, if a ny; 
 
d)       fibre composition and proportion of pile material or use surface;  
 
e) length and width dimensions in metres or centimetres;  
 
f) mass in kilograms;  
 
g)       country of manufacture;  
 
h) batch or lot number.  
 
 
7.2   Boxes of tiles  
 
The following information shall  appear in legible and indelible marking on each box of tiles:  
a) Manufacturer’s name,  address or registered trade mark;  
b) the words” Woven  Carpet Tiles”;  
c) type of pile, if any;  Direction  Number of piles  
per 10 cm (min.)  
Warp  31 
Weft 30  
 d) fibre composition and proportion of pile material or use surface;  
e) quantity of tiles;  
f) batch number or lot number;  
g)       length and width dimensions in centimeters , of each tile;  
h) country of manufacture.