SAUDI ARABIAN STANDA RD ORGANIZATION 
 
 
SASO 
 
 
  
 
  
 
Woven Carpets Used for Masjids 
DRAFT NO 30465/2017 
     
  
   
 2Woven Carpets Used for Masjids 
 
1- SCOPE AND FIELD OF APPLICATION 
 This SASO standard specifies machine- made woven carpets with cut loop piles 
for use in Masjids.  
2- COMPLEMENTARY REFERENCES 
2.1 Standard to be approved by SASO on "M ethods of Testing W oven Carpets used 
for Masjids”. 
2.2 GSO 535 “Machine-made Textile Floor  Coverings :Sampling and Preparing 
Specimens for Physical Tests”. 
2.3 SASO 2778 - GSO1956  “Harmful substances used in textile products”. 
2.4 SASO 1173-GSO863  “Identification Label fo r Textile Products ”. 
3- DEFINITIONS 3.1 Pile: The part of a carpet consisting of  textile yarns or fibres, cut or looped, 
projecting from the substrate and acting as a use surface. 
3.2 Substrate: A construction integral with the pile which serves as a support for the 
use-surface. 
4-  REQUIREMENTS 
 The following requirements should be fu lfilled in a finished woven carpet: 
4.1 The pile yarn should be made from 100% Acrylic or 100% Wool; or 80% Wool-
20% Nylon or  100% Thermal polypropylene. 
4.2              Carpets sh ould be on form of continuous or discontinuous rolls of width not less 
than 120 cm and not more th an 130 cm in order to avoi d the contacts of prayers 
on sequential rows.  
4.3 Physical and mechanical properties of the fi nished carpet should be as specified in 
Table 1. 
TABLE 1 
Physical properties of finished carpets 
Property  
100%Wool Blended wool 100% Acrylic 100%Polypropylene 
thermal  treated 
Pile mass above the substrate 
g/m2  (min) 2500 1800 1800 2000 
Pile height mm(min)                  10 10  10  10  
Total carpet thickness 
mm(min)           12 12  12  12 
Tuft withdrawal force N 5 5  5  5   
 3 
                    (min)                   
Number of tufts /m2(min)          375000 375000  375000  375000 
Loss in thickness under dynamic 
load(%)(max)                   30 30  30  30 
Dimensional change due to  
effects of varied water and 
heat conditions (%)                    
(max) 0.8(Shrinkage) 
0.4(extension) 0.8(Shrinkage) 
0.4(extension) 0.8(Shrinkage) 
0.4(extension) 0.8 (Shrinkage) 
0.4 (extension) 
Oil and fat content (%)(max)    1 1 1 1 
Max. distance of the damaged 
area in the flammability test (cm) 6 6 66 
Maximum potential difference 
Results from electrostatic 
charges (walking test) (kV.)  3 3 33 
Fiber of content  100% 80%wool-
20%Naylon 100%  100% 
 44.4 Color fastness requirements of the dyed p ile yarns should as specified in Table 2. 
TABLE 2 
Colour Fastness Requirements of Pile Yarns 
 
Color fastness to light (blue scale)  min. 5 
Color fastness to crocking ( grey scale) min. 
                                                                         Dry                                                                           Wet   
4 
3-4       
Color change due to water wetting (Grey scale)  4         
Friction due to organic so lvents (Gray scale) 4 
 
  
 54.5     The width and length of the woven carpet should  not be less than that i ndicated in        
    the identification label. 
4.6 The back of the carpet should be coated with latex or any other suitable coating. 
The backcoating shall be evenly spread w ith no build-up at the selvedges of the 
carpet and shall ensure a fray re sistant finish to cut edges. 
4.7 All seams should be machine sewn at carpet edges with threads matching the 
predominant color of the carpet. 
4.8 Carpet should be dyed by one or more co lors; and it should  contain two parallel 
lines spaced 25 ± 2 cm to ascertain the locations of prayers foots in order to get 
straight  prayer rows. 
4.9 The carpet should be free from any def ects that might affe ct the appearance, 
durability and serviceability: 
- Visible stains or dirties. -       Ornamentation used in de sign not objected with Islamic rules. 
- Unevenness of weaving structure or design affecting appearance. 
- Unevenness on carpet surface. - Missing areas of pile. - Holes or tear through to back. - Unevenness of hem and edges. - Unevenness of back coating. 
 4.10 The carpet shall be free from substances likely to harm human body 
and environment according to SASO 2778 - GSO1956
 “Harmful substances used 
in textile products”. 
                   4.11          When wool is  used as pile yarn, the yarn sh all be treated to resist moth. 
5- PACKAGING 
The following shall be considered on packing: 
5.1 Each carpet piece shall be tightly rolled in  warp direction with its pile face inside. 
5.2 The rolls shall be wrapped usi ng adequate pack ing materials. 
5.3 The packing material shall be str ong, moisture-proof, non-staining and of 
sufficient size to completely cover the package with adequate overlapping which 
will not allow foreign matter to reach the carpet. 
6- MARKING  
6.1 A label shall be securely attached to one  of the corners on th e back of the rolled 
carpet, indelibly and clearly marked in Arabic or Arabic and English with the 
following information: 
6.1.1 Name of the product; 6.1.2 Manufacturer's name and/or trademark; 6.1.3 Width and length;  
 66.1.4 Content of fiber ; 
6.1.5 Care label of carpet and storage method; 6.1.6 Country of origin; 6.1.7 Pile thickness and weight; 
7- SAMPLING 
Sampling shall be as follow s unless otherwise agreed upon. 
7.1 The consignment shall be divided into lo ts, so that each lo t contain the quantity 
(number) of woven carpet of the same co mposition, size, colour and construction 
particulars. 
7.2 Woven carpets rolls shall be taken from th e lot at random for testing.  The sample 
size shall be in accordance with Table 3. 
TABLE 3 
Sample Size 
 
Lot size (carpet roll) Sample size (carpet roll) 
           Up to      50 
            51 to    250           251 to 1200         1201 and above 2 
3 5 8 
 
7.3 Specimens shall be cut from the carpet according to the met hod specified in the 
Gulf standard mentioned in 2.2 
8- TESTING 
 Tests shall be carried out according to  the SASO Standard mentioned in 2.1. 
8.1 Tests  The representative samples drawn accordi ng to item (7.1), shall be subjected to 
the following tests: 
8.1.1 Visual inspection (carpet defects). 
8.1.2 Measurement of width and length. 8.1.3 Determination of mass of pile yarn per unit area. 8.1.4 Determination of number of tu fts per unit area (length-width). 
8.1.5 Determination of thickness pile  height above the substrate. 
8.1.6 Determination of tuft withdrawal force. 8.1.7 Determination of thickne ss loss under dynamic loading. 
8.1.8 Determination of dimensional change due to the effect of varied water and heat 
conditions. 
8.1.9 Determination of col our fastness to light.  
 78.1.10 Determination of colour fastness to crocking. 
8.1.11 Determination of colour fastness to water. 8.1.12 Determination of oil and fat content of the pile yarn. 8.1.13 Determination of content of fiber. 8.1.14 Determination of thickness of pile . 8.1.15 Determination of flammability. 8.1.16 Determination of potential difference results from electrostatic charges. 
8.1.17 Determination of resistance to attack by clothes moth. 
9- RULES OF ACCEPTANCE AND REJECTION  
9.1 Each consignment of woven carpets shall be accompanied by a certificate 
indicating its compliance with the require ments of  the present SASO standard. 
9.2 The lot shall be considered conforming to the requirements of this standard if the 
samples representing it pass all the tests spec ified in this standard, otherwise, it 
shall be considered non-conforming.