DRAFT UGANDA STANDARD  
  DUS  2376   
First Edition  
2021 -mm-dd 
 
 
 Reference number  
DUS 2376 :2021 
© UNBS 2021   
  
Handcrafted  Jewel lery — Specification  
 DUS 2376 :2021  
ii © UNBS 2021  – 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 correct application  
© UNBS 2021  
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 
permission 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 7 333 2 50/1/2 
Fax: +256 41 4 286 123  
E-mail: info@unbs.go.ug  
Web: www.unbs.go.ug  DUS 2376 :2021  
© UNBS 2021  – All rights reserved  iii 
 Contents  Page 
Foreword  ................................ ................................ ................................ ................................ ............................  iv 
1 Scope  ................................ ................................ ................................ ................................ ......................  1 
2 Normative references  ................................ ................................ ................................ ............................  1 
3 Terms and definitions  ................................ ................................ ................................ ...........................  1 
4 Requ irements  ................................ ................................ ................................ ................................ .........  2 
4.1 General Requirements  ................................ ................................ ................................ ..........................  2 
5 Specific requirements  ................................ ................................ ................................ ...........................  2 
5.1 Materials  ................................ ................................ ................................ ................................ .................  2 
5.2 Lead content limits  ................................ ................................ ................................ ................................  3 
5.3 Drop test (impact resistance)  ................................ ................................ ................................ ...............  3 
5.4 Colour fastness  ................................ ................................ ................................ ................................ ..... 3 
5.5 Restricted colorants  ................................ ................................ ................................ ..............................  4 
5.6 Dimensions/sizes  ................................ ................................ ................................ ................................ .. 4 
6 Packaging  ................................ ................................ ................................ ................................ ...............  4 
7 Labelling/Marking  ................................ ................................ ................................ ................................ .. 4 
7.1 Labelling/Marking on the individual package  ................................ ................................ .....................  4 
7.2 Labelling/Marking on the bulk package  ................................ ................................ ..............................  4 
Annex  A (normative)  List of dye stuffs prohibited  ................................ ................................ .........................  5 
Annex  B (informative)  List of banned Amines  ................................ ................................ ...............................  6 
Bibliography  ................................ ................................ ................................ ................................ ........................  8 
 DUS 2376 :2021  
iv © UNBS 2021  – 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 manda ted to co -
ordinate the elaboration 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 Organisation (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 g overnment, academia, consumer 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 befo re recommending the draft standards 
for approval and declaration as Uganda Standards by the National Standards Council.  
The committee responsible for this document is Technical Committee UNBS /TC 301-Crafts and relate d 
products  
 DRAFT UGANDA STANDARD  DUS 2376 :2021  
 
© UNBS 2021  – All rights reserved  1 
 Handcrafted  Jewel lery — Specification  
1 Scope   
This draft Uganda Standard s pecifies requirements and tes t methods for handcrafted  jewellery . The standard 
applies to handcrafted  jewellery  as defined in clause 3.1 . 
2 Normative references   
The fo llowing referenced documents referred to in the text in such a way that some or all of their content 
constitutes requirements of this document. For dated references, only the edition cited applies. For undated 
references, the latest edition of the referenc ed document (including any amendments) applies.  
ISO 16373 -2, Textiles — Dyestuffs — Part 2: General method for the determination of extractable dyestuffs 
including allergenic and carcinogenic dyestuffs (method using pyridine -water)  
ISO 16373 -3, Textiles — Dyestuffs — Part 3: Method for determination of certain carcinogenic dyestuffs 
(method using triethylamine/methanol)  
ISO 6503, Paints and varnish es_ Determination of total lead _ Flame atomic absorption spectrometric 
method.  
US ISO 105 -B02, Textiles — Colour fastness, Part B02: Determination of colour fastness to artificial light:  
Xenon arc fading lamp test  
US ISO 105 -C10, Textiles — Tests for colour fastness — Part C10: Colour fastness to washing with soap or 
soap and soda  
US ISO 105 -X12, Textiles — Tests for colour fastness — Part X12: Colour fastness to rubbing  
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  
3.1 
jewellery  
a product principally designed and intended for use as an ornament and may include  the following:  
a) Anklet ; 
b) Arm cuff ; 
c) Bracelet ;  
2 © UNBS 2021  – All rights reserved  
 d) Brooch ; 
e) Chain ; 
f) Crown or tiara ; 
g) Cuff link ; 
h) Hair accessory with signiﬁcant decorative elements ; 
i) Earrings ; 
j) Ear cuffs ; 
k) Necklace ; 
l) Pins (such as tie tacks and trading pins) ; 
m) Rings ; 
n) Body piercing jewellery ; and  
o) Jewellery  placed in the mouth for display or ornament . 
3.2 
dye 
natural or synthe tic substance soluble in water used to add a colour to or change the colour of material   
4 Requirements  
4.1 General Requirements  
4.1.1 Materials used for making handcrafted  jewellery  such as dyes, varnish, magnets  shall not have any 
adverse effect on  human health and the environment.  
4.1.2 The product shall be free from unintended cracks,  stains,  spots , color variations  and any other defect . 
4.1.3 The product shall have s mooth polished sur faces . The corners and the concealed solder joints must 
also be polished  
4.1.4 The product shall be firm . The solder joints shall be firmly fixed.  
4.1.5 Where sharp objects are used, the edges or ends shall be finished or secured to prevent i njury to the 
users . 
4.1.6 The handcrafted  jewellery  shall be made to the specifications of the buyer in terms of design  and 
colour unless otherwise stated.  
5 Spec ific requirements  
5.1 Material s 
Handcrafted  jewellery  shall be made from natural or synthetic materials used as one or combi ned raw 
materials. T hese may include:  DUS 2376 :2021  
© UNBS 2021  – All rights reserved  3 
 a) beads such as paper beads, metallic beads, plastic beads, wooden beads, glass b eads , seeds ; 
b) precious metals such as gold, silver, platinum, palladium, rhodium,  osmium , iridium, ruthenium,  
titanium ; 
c) stainless steel;  
d) leather;  
e) cow horn;  
f) threads ; 
g) recycled materials among others.  
5.2 Lead content limits  
For products which are painted or where a surface coating of paint is used,  they shall meet the lead content 
limits as shown in  Table 1 : 
Table 1 — Lead content limits for handcrafted  jewellery  
Materials covered  Maximum 
total lead 
limits  Test method  
Paint or surface coating  90 ppm ISO 6503  
 
5.3 Drop test (impact resistance)  
5.3.1  Procedure  
5.3.1.1  The finished product without any pac kaging is dropped from a height of 0.9-1.2 m 
5.3.1.2  This is repeated  three more  times  
5.3.2  Result  
The product must remain intact  
5.4 Colour fastness  
Table 2  — Colour fastness requirements for  handcrafted  jewellery  
Sl No  Agency  Numerical rating  Test method  
Colour change  Staining  
i) Light  4-5 - US ISO 105 -B02 
ii) Washing  3-4 3-4 US ISO 105 -C10 
iii) Rubbing  dry - 4 US ISO 105 -X12  
4 © UNBS 2021  – All rights reserved  
 (min)  wet - 3 
5.5 Restricted colorants  
5.5.1 Where colorants have been applied on the handcrafted jew ellery , the dyed  jewellery  shall not contain 
dyestuffs specified  in ISO 16373 -2 and ISO 16373 -3. 
5.5.2  The aromatic amine and dyes listed in An nex A and B shall not be used.  
5.6 Dimensions/sizes  
The size of the handcrafted  jewellery  shall be as agreed between the manufacturer/supplier and buyer unless 
otherwise . 
6 Packaging  
The handcrafted  jewellery  shall be suitably packed individually or in bulk, as agreed to between the buyer and 
the seller, care being taken to avoid t he products from getting  damaged  when pack ed. 
7 Labelling /Marking  
7.1 Labelling/ Marking on the individual package  
The bulk package  shall be legibly and indelibly marked  or a label shall be attached with it giving the following 
particula rs or in accordance with the agreement between the buyer and the seller  
a) name of the product such as, “earrings ”; 
b) manufacturer’s name, trade mark or any other identification mark ; 
c) materials used ; 
d) care instruction s; and 
e) Country of origin.  
7.2 Labelling/Marking on the bulk package  
a) name of the product such as, “earrings”;  
b) manufacturer’s name, trade mark or any other identification mark ; 
c) number of pieces in the bulk package; and  
d) Country of origin.  
 DUS 2376 :2021  
© UNBS 2021  – All rights reserved  5 
 Annex  A 
(normative)  
 
List of dye stuffs prohibited  
SN C.I. Generic Name  Structure 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  
16 Acid Red 264 18133  
17 Acid Red 265 18129  
18 Acid Red 420  
19 Acid Violet 12  18075  
20 Acid Violet 49  42640  
21 Acid Brown 415   
22 Acid Brown 29   
23 Acid Brown 94  30336  
24 Acid Brown 131   
25 Acid Brown 132   
26 Acid Brown 209   
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  
  
6 © UNBS 2021  – All rights reserved  
 Annex  B 
(informative)  
 
List of banned Amines  
SN Aromatic Amine  CAS number (Chemical Abstract Service  
Number)  
1 Biphenyl -4-ylamine 4 -aminobiphenyl xenylamine  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’,3dimethylazobenzene  
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-phenylenediami ne 615-05-4 
9 4,4’-methylenedianili ne 
4,4’-diaminodiphenylmethane  101-77-9 
10 3,3’-dichlorobenzidine  
3,3’-dichlorobiphenyl -4,  
4’-ylenediamine  91-94-1 
11 3,3’-dimethoxybenzidine odianisidine  119-90-4 
12 3,3’-dimethylbenzidine  
4,4’-bi-o-toluidine  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-toluidi ne 
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 DUS 2376 :2021  
© UNBS 2021  – All rights reserved  7 
 24 2,4-xylidine  95-68-1 
25 2,6-xylidine  87-62-7 
  
8 © UNBS 2021  – All rights reserved  
 Bibliography  
[1] ASTM F2999 -19, Standard consumer safety specification for adult jewellery  
 DUS  2376 :2021  
© UNBS 2021  – All rights reserved  9 
 Certification marking  
Products that conform to Uganda standards may be marked with Uganda National Bureau of Standards 
(UNBS) Certification 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 National Bureau of Standar ds 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 good s 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 conform ity to that standard.  
Further particulars of the terms and conditions of licensing may be obtained from the Director, Uganda 
National Bureau of Standards.  
 
 DUS 2376 :2021    
 
ICS 39.060  
Price based on nn pages  
© UNBS 2021 – All rights reserved