DRAFT UGANDA STANDARD  
  DUS 2302 -2 
First  Edition  
2022 -mm-dd 
 
 
 Reference number  
DUS 2302 -2: 2022 
© UNBS 2022   
  
Mats — Specification — Part 2: Machine made  
 DUS 2302 -2: 2022  
ii © UNBS 2022 – All rights reserved  
 Compliance with this standard does not, of itself confer immunity from legal obligations  
A Uganda Standard does not purport to include all necessary provisions of a contract. Users are 
responsible for its corr ect application  
© UNBS  2022  
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilised in any 
form or by any means, electronic or mechanical, including photocopying and microfilm, without prior written 
permis sion from UNBS.  
Requests for permission to reproduce this document should be addressed to  
The Executive Director  
Uganda National Bureau of Standards  
P.O. Box 6329  
Kampala  
Uganda  
Tel: +256 41 4 333 2 50/1/2/3  
Fax: +256 41 4 286 123  
E-mail: info@unbs.go.ug  
Web: www.unbs.go.ug  DUS 2 302-2:2022  
© UNBS 2022 – All rights reserved  iii 
 Contents  Page 
Foreword  ................................ ................................ ................................ ................................ ............................  iv 
1 Scope ................................ ................................ ................................ ................................ ......................  1 
2 Normative references  ................................ ................................ ................................ ............................  1 
3 Terms and definitions  ................................ ................................ ................................ ...........................  1 
4 Requi rements  ................................ ................................ ................................ ................................ .........  2 
4.1 General requirements  ................................ ................................ ................................ ...........................  2 
4.2 Specific requirements  ................................ ................................ ................................ ...........................  2 
5 Packaging  ................................ ................................ ................................ ................................ ...............  2 
6 Labelling  ................................ ................................ ................................ ................................ .................  3 
7 Sampling  ................................ ................................ ................................ ................................ ................  3 
Annex A (normative)  S ampling criteria  ................................ ................................ ................................ ...........  4 
A.1 Sampling  ................................ ................................ ................................ ................................ ................  4 
Annex  B (Normative)  Defects  ................................ ................................ ................................ ...........................  5 
Annex  C (Normative)  List of banned Amines  ................................ ................................ ................................ . 6 
Annex  D (Normative)  List of dye stuffs prohibited dyestuffs  ................................ ................................ ....... 8 
Bibliography  ................................ ................................ ................................ ................................ ........................  9 
. DUS 2302 -2: 2022  
iv © UNBS 2022 – All rights reserved  
 Foreword  
Uganda National Bureau of Standards (UNBS) is a parastatal under the Ministry of Trade , Industry and 
Cooperatives established under Cap 327 , of the Laws of Uganda , as amended .  UNBS is mandated to co -
ordinate the elab oration of standards and is  
(a) a member of International Organisation for Standardisation (ISO) and  
(b) a contact point for the WHO/FAO Codex Alimentarius Commission on Food Standards, and  
(c) the National Enquiry Point on TBT  Agreement  of the World Trade Organisa tion (WTO).  
The work of preparing Uganda Standards is carried out through Technical Committees. A Technical 
Committee is established to deliberate on standards in a given field or area and consists of key stakeholders 
including government, academia, consum er groups, private sector and other interested parties.  
Draft Uganda Standards adopted by the Technical Committee are widely circulated to stakeholders and the 
general public for comments. The committee reviews the comments before recommending the draft s tandards 
for approval and declaration as Uganda Standards by the National Standards Council.  
The committee responsible for this document is Technical Committee UNBS /TC 311, Crafts and related  
products.  
WDUS 2302  consists of the following parts, under the g eneral title Mats — Specification :  
  Part 1: Handwoven   
  Part [2]: Machine made  
 DRAFT UGANDA STANDARD  DUS 2302 -2: 2022  
 
© UNBS  2022  – All rights reserved  1 
 Mats — Specification — Part 2 : Machine made  
1 Scope   
This Draft Uganda Standard specifies requirements, sampling and  test methods for machine made mats .  
The standard appli es to machine made  table mats, floor m ats, door mats, wall mats, picnic  mats and 
bathroom mats  
2 Normative references   
The following referenced documents referred to in the text in such a way that some or all of their content 
constitutes requirements of th is document. For dated references, only the edition cited applies. For undated 
references, the latest edition of the referenced document (including any amendments) applies.  
ISO 105 B01 , Textiles - Tests for colour fastness - Part B01: Colour fastness to li ght: Daylight  
ISO 105 B02 , Textiles - Tests for colour fastness - Part B02: Colour fastness to artificial light: Xenon arc 
fading lamp test  
ISO 105 X12 , Textiles - Tests for colour fastness - Part X12: Colour fastness to rubbing  
ISO 2094 , Textile floor cov erings — Determination of thickness loss under dynamic loading  
ISO 2551 , Textile floor coverings and textile floor coverings in tile form — Determination of dimensional 
changes due to the effects of varied water and heat conditions and distortion out of pl ane 
ISO 8543 , Textile floor coverings — Methods for determination of mass  
ISO 18168 , Textile floor coverings — Colour fastness to shampooing  
3 Terms and definitions   
For the purposes of this document, the following terms and definitions apply.  
ISO and IEC  maintain terminological databases for use in standardization at the following addresses:  
— ISO Online browsing platform: available at http://www.iso.org/obp  
machine made mat 
covering made from natural or man -made material used for different purposes   
2 © UNBS 2022 – All rights reserved  
 4 Requirements  
4.1 General requirements  
4.1.1 Shall be firmly and evenly made.  
4.1.2 Shall have regular selvedge on both sides or the edges shall be folded and hem stitched, finished by 
overlocking, whipping or fringes . 
4.1.3 Shall be fre e from defects listed in Annex B , which might affect the appearance, durabilit y or 
performance of the mat . 
4.1.4 Shall be free from irregularities, in shape, luster and colour tone.  
4.2 Specific requirements  
4.2.1  The dimensions shall not be less than that indicated on the iden tification label when tested in 
accordance with  US ISO 22198. A tolerance of ±2  percent shall be permitted  for length and width and  ±5 
percent for the thickness.  
4.2.2  The fibre composition of the machine made mats shall be as declared by the manufacturer when 
tested in accordance with the relevant part(s) of US ISO 1833  and subject to a tolerance as specified in US 
426. 
4.2.3 Performance  requirements for machine made  mats shall be as specified in Table 2 . 
Table 2  ─ Performance  requirements  for machine made  mats  
SN Parameters  Requirement  Test Method  
i.  Colour 
fastness  Light , min  4 ISO 105 B01  or 
ISO 105 B02  
Dry rubbing , min  4 ISO 105 X12  
Wet Rubbing , min  4 
Shampooing , min  4 ISO 18168  
ii.  Thickness loss under dynamic loading 
(%), Max.  30 ISO 2094  
iii.  Total mass per unit area, (g/m2), Min.  550 ISO 8543  
iv.  Dimensional change 
after cold water 
immersion, (%), Ma x Warp way  2 
 ISO 2551  
Weft way  
4.2.4  Where colorants have been applied on the mat, the dyed mat shall not contain dyestuffs specified in 
ISO 16 373-2 and ISO 16373 -3 and pthalates detected and quantified in accordance with ISO 14389 shall not 
be more than 0.1 % by mass  
4.2.5  The aromatic amine s and dyes listed in Annex C and D  respectively  shall not be used.  
5 Packaging  
Machine made mats shall be suitably packaged individually or in bulk  to maintain their integrity  during storage 
or transportation.  
. DUS 2302 -2: 2022  
© UNBS 2022 – All rights reserved  3 
 6 Labelling  
6.1 The machine made  mat or its packaging shall  be legibly and indelibly labelled  with the following 
information : 
a) name of the product;  
b) manufacturer’s name , address and/or trademark;  
c) dimensions .(thickness, width, length) ; 
d) composition of the mat ; 
e) lot or batch number ; 
f) country of o rigin; and  
g) instructions for use . 
6.2 The bulk package  of the machine made mats  shall be legibly and indelibly  label led with the following 
Information ; 
a) Name of product ; 
b) Number of mats in the bulk package ; 
c) Country of origin; and  
d) Batch number . 
7 Sampling  
Sampling of the machine made  mats , shall be as prescribed in Annex A  
  
4 © UNBS 2022 – All rights reserved  
 Annex A 
(normative)  
 
Sampling criteria  
A.1 Sampli ng 
Sampling shall be made as follows  
A.1.1  The consignment shall be divided into lots so that each lot contains a number of machine made mats 
of the same composition, size, design and construction particulars.  
A.1.2  A number of  machine made  mats shall be selected at random from each lot, depending upon the size 
of the lot and shall be in accordance with Table A.1 .  
A.1.3  Machine made mats selected from the lot shall be examined for ascertaining their conformity to the 
requirements of this standard . 
Table A .1 Scale of sampling  
SN Lot size  Sample size  
i.  Up to 50  2 
ii.  51 ─ 500  3 
iii.  501 ─ 3500  5 
iv.  3501 ─ Above  8 
 DUS 2302 -2: 2022  
© UNBS 2022 – All rights reserved  5 
 Annex  B 
(Normative ) 
 
Defects  
 Spot or stain.  
 Not evenly constructed to an extent affecting appearance .  
 Marks across mat.  
 Discoloured areas affecting appearance  
 Any noticeable unevenness on top surface affecting appearance.  
 Streak lengthwise or width wise.  
 Objectionable odour.  
 Any hole or tear through the back.  
 Seams not properly sewed or taped.  
 Edges not finished as required.  
 Poor colour match   
6 © UNBS 2022 – All rights reserved  
 Annex  C 
(Normative)  
 
List of banned Amines  
S/No  Aromatic amine  CAS number (Chemical Abstract Service 
number)  
1 Biphenyl -4-ylamin; 4 -aminobiphenyl; xenylamin e 92-67-1 
2 Benzidine  92-87-5 
3 4-chloro -o-toluidine  95-69-2 
4 2-naphthylamine  91-59-8 
5 o-aminoazotoluene  
4-amino - 2’,3-dimethylazobenzene  
4-o-tolylazo -o-toluidine  97-56-3 
6 5-nitro-o-toluidine  99-55-8 
7 4-chloroaniline  106-47-8 
8 4-methoxy -m-pheny lenediamine  615-05-4 
9 4,4’-methylenedianiline  
4,4’-diaminodiphenylmethane  101-77-9 
10 3,3’-dichlorobenzidine  
3,3’-dichlorobiphenyl -4, 
4’-ylenediamine  91-94-1 
11 3,3’-dimethoxybenzidine o -Dianisidine  119-90-4 
12 3,3’-dimethylbenzidine  
4,4’-bi-o-toluidi ne 119-93-7 
13 4,4’-methylenedi -o-toluidine  838-88-0 
14 6-methoxy -m-toluidine pcresidin  120-71-8 
15 4,4’-methylene -bis-(2-chloro -aniline)  
2,2’-dichloro -4,4’-methylene -dianiline  101-14-4 
16 4,4’-oxydianiline  101-80-4 
17 4,4’-thiodianiline  139-65-1 
18 o-toluidine  
2-aminotoluene  95-53-4 
19 4-methyl -m-phenylenediamine  95-80-7 
20 2,4,5 -trimethylaniline  137-17-7 
21 o-anisidine  90-04-0 
22 2-methoxyaniline  66-76-3 
23 4-aminoazobenzene paminoazobenzene  60-09-3 
24 2,4-xylidine  95-68-1 DUS 2302 -2: 2022  
© UNBS 2022 – All rights reserved  7 
 25 2,6-xylidine  87-62-7 
 
  
8 © UNBS 2022 – All rights reserved  
 Annex  D 
(Normative)  
 
List of dye stuffs prohibited dyestuffs  
S/No Colour Index (C.I) . 
Generic Name  Structure Colour Index (C.I) No.  
1 Acid Orange 45 22195  
2 Acid Red 4 14710  
3 Acid Red 5 14905  
4 Acid Red 24 16140  
5 Acid Red 26 16150  
6 Acid Red 73 27290  
7 Acid Red 85 22245  
8 Acid Red 114 23635  
9 Acid Red 11 27200  
10 Acid Red 116 26660  
11 Acid Red 128 24125  
12 Acid Red 148 26665  
13 Acid Red 150 27190  
14 Acid Red 158 20530  
15 Acid Red 167 11338  
16 Acid Red 264 18133  
17 Acid Red 265 18129  
18 Acid Red 420 N/A 
19 Acid Violet 12  18075  
20 Acid Violet 49  42640  
21 Acid Brown 415  N/A 
22 Acid Brown 29  N/A 
23 Acid Brown 94  30336  
24 Acid Brown 131  N/A 
25 Acid Brown 132  N/A 
26 Acid Brown 20 9 N/A 
27 Azoic Diazo Component 11  37085  
28 Azoic Diazo Component 12  37105  
29 Azoic Diazo Component 48  37235  
30 Azoic Diazo Component 
112 37225  
31 Azoic Diazo Component 
113 37230  
 DUS 2302 -2: 2022  
© UNBS 2022 – All rights reserved  9 
 Bibliography  
[1] DKS 2946: 2021 , Prayer Mats — Specification  
[2] TDC 3 (1143) CD3 : 2018 , Textiles — Floor Mats — Specifications  
[3] US 2302 -1:2021, Mats -Specification -Part 1: Handwoven mats  
 WDUS 2302 -2: 2022  
© UNBS  2022  – All rights reserved  11 
 Certification marking  
Products that conform to Uganda standards may be marked with Uganda National Bureau of Standards 
(UNBS) Certifi cation Mark shown in the figure below.  
The use of the UNBS Certification Mark is governed by the Standards Act, and the Regulations made 
thereunder. This mark can be used only by those licensed under the certification mark scheme operated by 
the Uganda Na tional Bureau of Standards and in conjunction with the relevant Uganda Standard. The 
presence of this mark on a product or in relation to a product is an assurance that the goods comply with the 
requirements of that standard under a system of supervision, control and testing in accordance with the 
certification mark scheme of the Uganda National Bureau of Standards. UNBS marked products are 
continually checked by UNBS for conformity to that standard.  
Further particulars of the terms and conditions of licen sing may be obtained from the Director, Uganda 
National Bureau of Standards.  
 
 DUS 2302-2: 2022    
 
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