DRAFT UGANDA STANDARD  
  DUS 2104  
First  Edition  
2018 -mm-dd 
 
 
 Reference number  
DUS 2104 : 2018 
© UNBS 2018   
  
Face pack (Cosmetic m ask) — Specification  
 DUS 2104 : 2018  
ii © UNBS 2018  – 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 2018   
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 
permissi on 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 2104 : 2018  
© UNBS 2018  – All rights reserved  iii 
 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 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 gover nment, 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 before r ecommending 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 5, Chemical and 
Environment , Subcommittee SC 1, Public  and industrial chemicals . DRAFT UGANDA STANDARD  DUS 2104 : 2018  
 
© UNBS 2018  – All rights reserved  1 
 Face pack  (Cosmetic mask)  — Specification  
1 Scope   
This Draft Uganda Standard specifies the requirements, sampling and tes t methods for  face packs.  
In additional to meeting the requirements of this standard, products for which therapeutic  claims are made 
shall be required to me et efficacy  requirements  set by the competent  authori ty. 
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 this document. For dated references, only the edition cited applies. For undated 
references, the latest edition of the referenced document (including any amendments) applies.  
FDUS EAS 847 -15, Cosmetics — Analytical methods — Part 15: Determination of as h content  
FDUS EAS 847 -16, Cosmetics — Analytical methods — Part 16: Determination of lead, mercury and arsenic 
content  
FDUS EAS 847 -17, Cosmetics — Analytical methods — Part 17: Determination of pH  
FDUS ISO 21149 , Cosmetics -- Microbiology -- Enumeration and detection of aerobic mesophilic bacteria   
US ISO 18416 , Cosmetics — Microbiology — Detection of candida albicans  
US ISO 22717 , Cosmetics — Microbiology —Detection of Pseudomonas aeruginosa  
US ISO 22718 , Cosmetics — Microbiology — Detection of Staphyloc occus aureus  
US EAS 377, (all parts), Cosmetics and cosmetic products  
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 face pack  
cosmetic preparation spread over the face and left to dry for some time to clean  and improve the condition of 
the skin . WDUS 2104: 2018  
2 © UNBS 2018  – All rights reserved  
 4 Types  
The face packs shall be in form of:  
a) Pastes, and  
b) Powder.  
5 Requirements  
5.1 General requirements  
5.1.1  Face packs shall be either  a smooth paste or powder free from any gritty particle s and foreign 
matter.  
5.1.2  All ingredients shall comply with US EAS 377.  
5.1.3  The face pack shall be dermatologically safe and shall not cause irritation or harm to the skin when 
used as intended by the manufacturer.  
5.2 Specific requirements  
5.2.1  Paste fa ce pack  
The paste face pack shall conform to the requirements specified in table 1, when tested according to the 
method indicated therein.  
Table 1 — Paste face pack  
Characteristic  Requirement  Test method  
pH 5 -9 FDUS EAS 847 -17 
Stability at 45  °C ± 1 °C for 48 h phase separation  Stable, no noticeable  Annex A  
Solid content (residue on evaporation),percent by mass, min  10 Annex B  
 
5.2.2  Powder  face pack  
The paste face pack shall conform to the requirements specified in table 2, when tested according to t he 
method indicated therein.  
Table 2 — Powd er face pack  
Characteristic  Requirement  Test method  
pH 5-9 FDUS EAS 847 -17 
Loss on drying, percent by mass, max 5 Annex B 
Ash content, percent by mass, max  85 FDUS EAS 847 -15 
6 Heavy Metal  
The face pack shall comply with the heavy metal requirements given in Table 3 when tested in accordance 
with the test methods specified therein . DUS 2104 : 2018  
© UNBS  2018  – All rights reserved  3 
 Table 3 — Heavy metal requirements for face packs  
Characteristic  Requirement  Test method  
Lead, mg/l, max.  10  
FDUS EAS 847 -16 Arsenic, mg/l, max.  2 
Mercury, mg/l, max.  2 
The total amount of heavy metals as lead, mercury and arsenic, in combination in the finished product shall not 
exceed 10 mg/kg . 
7 Microbiological requirements  
Face packs  shall com ply with the microbiological  requirements given  in Table 4 when tested in accord ance 
with the test method s specif ied therein.  
Table 4  — Microbiological requirements for face pack  
Characteristic  Requirement  Test method  
Total viable count for aerobic mesophyllic micro -
organisms per g,  max.  1000 FDUS ISO 21149  
Pseudomonas aeruginosa   
Not detectable in 0.5 
g of cosmetic 
product  US ISO 22717  
Staphylococcus  aureus  US ISO 22718  
Candida albicans  US ISO 18416  
8 Packaging  
The face pack shall be packaged in suitable well -sealed containers / packs that shall protect the contents and 
shall not cause any contamination or react with the product.  
9 Labelling  
In addition to the labelling requirements in US EAS 346, the package shall be legibly and indelibly marked with 
the following information:  
a) product name as “Face pack  or cosmetic  mask ”; 
b) manufacturer's name and physical address;  
c) type;  
d) list of ingredients;  
e) batch number;  
f) net content of the material when packed;  
g) country of origin;  
h) month and year of manufacture ; 
i) expiry/ best before date;  
j) Storage c onditions ; WDUS 2104: 2018  
4 © UNBS 2018  – All rights reserved  
 k) instruction for use ; and  
l) Safety precautions  
10 Sampling  
Sampling shall be carried in accordance with Annex C . DUS 2104 : 2018  
© UNBS  2018  – All rights reserved  5 
 Annex A  
 
(normative)  
 
Determination of stability  
A.1 Apparatus  
A.1.1 Incubator — Maintai ned at 45 °C + 1°C. 
A.1.2 25-ml Cylindrical Gla ss Bottles — with proper plug and cap . 
A.2 Procedure  
A.2.1  Take a glass bottle  and fill to three -fourth of its capacity with the product and close it with plug and  
cap tightly.  
A.2.2  Keep the bottle in an oven at 45 °C + 1°C for 48 h and p eriodically exami ne the contents.  
A.2.3  The emulsion  shall not split leaving separate layers  WDUS 2104: 2018  
6 © UNBS 2018  – All rights reserved  
 Annex  B 
(normative)  
 
Determination of residue on evaporation and loss on drying  
B.1 Apparatus  
B.1.1 Glass Petri Dish  
B.1.2 Oven  
B.1.3 Desiccator  
B.2 PROCEDURE  
B.2.1 Heat the clea n petri dish in hot air oven for 15 -20 minutes. Place it in a desiccator for 20 minutes. 
Weigh the petri dish accurately  
B.2.2 Weigh into the petri dish approximately about 2 -3 g of sample. Spread the product by rotating the petri 
dish or using dry and cle an spatula to form a layer.  
B.2.3  Then weigh the petri dish accurately and keep it in an oven at 105 °C± 2°C for 3 hours. Cool in 
desiccator and weigh.  
B.3 CALCULATION  
Residue on evaporation, percent by mass = 100xM2/M1 
Where:  
Ml = mass in g of the sample taken, and  
M2= mass in g of the residue.  DUS 2104 : 2018  
© UNBS  2018  – All rights reserved  7 
 Annex  C 
(normative)  
 
Sampling  
C.1 General requirements of sampling  
In drawing, preparing, storing and handling samples, the following precautions and directions shall be 
observed.  
C.1.1  Samples shall be taken in a  protected place not exposed to damp air, dust or Soot.  
C.1 2  The sampling instrument shall be clean and dry.  
C.1.3  The samples, the material being sampled, the sampling instrument and the containers for samples 
shall be protected from adventitious conta mination.  
C.1.4  The samples shall be placed in clean and dry glass containers. The sample containers shall be of a 
size such that they are almost completely filled by the sample.  
C.1.5  Each container shall be sealed air -tight after filling and marked wit h full details of sampling, batch or 
code number, name of manufacturer, and other important particulars of the consignment.  
C.1.6  The samples shall be stored in such a. manner that the temperature of the material does not vary 
unduly from the normal tempe rature and they are protected from light.  
C.1.7  Sampling shall be done by a person agreed to between the purchaser and the supplier, and in the 
presence of the purchaser or his representative and the supplier or his representatives.  
C.2 Sampling of packa ges  
C.2.1  General - The sampling procedure for packages shall consist essentially in selecting and drawing, a 
sufficient number of unit packs.  
C.2.2  Lot - In a single consignment, all the packages containing toothpaste of the same type and form, 
represen ting the same batch of manufacture, shall constitute a lot. If the consignment consists of packages 
containing toothpaste of different types or forms or batches of manufacture, then the packages containing 
products of the same type, form and batch of manuf acture shall be grouped together; each group shall 
constitute a separate lot.  
C.2.3  Scale of Sampling -For ascertaining the conformity of a lot to the requirements prescribed in the 
specifications for individual toothpaste and toilet goods, tests shall be  carried out on each lot separately. The 
number ( n ) of packages to be selected for drawing the samples shall depend on the size ( N) of the lot in 
accordance with Table C.1  WDUS 2104: 2018  
8 © UNBS 2018  – All rights reserved  
 TABLE C1 — SCALE OF SAMPLING FOR PACKAGES  
packages No. of packages in the lot(N ) No. of packages to be selected,(n)  
Upto 3  Each container  
4 to 50  3 
51 to 150  4 
151 to 300  5 
301 to 500  6 
501 and above  7 
 
C.2.4  The packages shall be selected at random and to ensure randomness of selection, random number 
tables shall be used . DUS 2104 : 2018  
© UNBS  2018  – All rights reserved  9 
 Bibliography  
[1] IS 15153 (2002): Face pack — Specification  
[2]   
 WDUS nnnn -n: 2018  
© UNBS 2018  – All rights reserved  11 
 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 th e 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 Standards and in conjunction with th e 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 
certificat ion 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 licensing may be obtained from the Director, Uganda 
Nation al Bureau of Standards.  
 
 WDUS nnnn -n: yyyy    
 
ICS 71.100.70  
Price based on nn pages  
© UNBS 2018 – All rights reserved