CDC 3(908) DTZS  
 
  ICS 71.100. 70 
 
 
 
 
  
 
 
 
 
DRAFT TA NZANIA STANDARD 
 
 
 
 
 
 
 
 
 
 
 
Face pack — Specification  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
TANZANIA BUREAU  OF STANDARDS 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
1st edition 
© TBS 2022 
 
 
  
 
 Foreword  
This Draft Tanzania Standard is being prepared by Cosmetics and creameries Technical Committee under the 
supervision of Chemicals Divisional Standards Committee and it is in accordance with the procedures of the 
Bureau.  
During preparation of this Draft Standard, reference was made from the Indian Standard, IS 15 153:2002 Face 
pack – Specification , published by Bureau of Indian Standards  
For the purpose of deciding whether a particular requirement of this standard is complied with, the final value 
observed or calculated expressing the result(s) of a test or analysis shall, be rounded off in accordance with 
TZS 4. The number of significant places retained in the rounded off value should be the same as that of the 
specified value in this standard.  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 CDC 3( 908) DTZS  
© TBS – All rights reserved  3 
 Introduction  
 
Face packs is the class of cosmetic products known as ‘beauty mask’. They are basically additives delivering 
some additional benefits. These packs are available in various types and forms and broadly classified into the 
following categories:  
a) Plastic masks: Wax based, latex based, or vinyl based  
b) Hydrocolloid masks: Gel masks (ready to use)  
c) Argillaceous masks: Earth based (ready to use or dry powder to be mixed with water just before 
application)  
d) Plant based masks: R eady to use or dry powder to be mixed with water just before application ) 
Face packs are generally in the form of smooth paste, fluid or in the dry powder. They may contain synthetic or 
natural scrubbing materials and may be coloured for aesthetics.  
Generally, face packs have the following characteristics in common:  
a) Produce a no ticeable tightening effect on skin after application and drying;  
b) Sufficient absorbent power to achieve a cleansing effect;  
c) Easy for application and removal; and  
d) Safe and non -irritating to normal skin.  
This standard does not stipulate definite composition of face packs. However, it is  necessary that the raw 
materials used in the formulation of finished product are such that in the concentrations  in which they would be 
present in the finished face packs, after interaction with the other raw materials used  in the formulation, are free 
from any harmful effects. It is the responsibili ty of the manufacturer of face  pack to satisfy the dermatological 
safety  of the finished  product.CDC 3(908) DTZS  
© TBS  – All rights reserved  1 
 DRAFT TANZANIA STANDARD                               CDC 3(908) DTZS  
Face pack  — Specification   
1. Scope  
This Draft Tanzania Standard specifies requirements, sampling and test methods for face packs .  
 
2. Normative references  
The following referenced documents are indispensable for the application of this document. For dated 
references, only the edition cited applies. For undated r eferences, the latest edition of the referenced 
document (including any amendments) applies.  
TZS 638 (1 -5)/EAS 377 (1 -5) Cosmetics and cosmetic products  
TZS 2127 -16/EAS 847 -16 Cosmetics — Analytical methods — Part 16: Determination of lead, mercury 
and arsenic content  
TZS 2127 -17/EAS 847 -17 Cosmetics — Analytical methods — Part 17: Determination of pH  
TZS 2127 -15/EAS 847 -15 Cosmetics — Analytical methods — Part 15: Determination of ash content  
TZS 774/EAS 346 Labelling of cosmetic products – General requirements   
TZS 2126/EAS 846 Glossary of terms relating to the cosmetic industry  
TZS 314  Cosmetics and toilet products – Methods of sampling  
3. Terms and definitions  
For the purposes of this document, the terms and definitions given in TZS 2126/EAS 846 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  
 
 
4. Requirements  
 
4.1 General requirements  
4.1.1  For the purpose of this standard, the face packs have  been categorized into two types:  
a) Type 1: Pastes, and  
b) Type 2: Powder.  
 
4.1.2  Face packs shall be a smooth paste, or dry powder free from any gritty particles.  
4.1.3  Face packs may be coloured  for aesthetics and may contain natural or synthetic  scrubbing 
materials.  
4.1.3 All ingredients used , including dyes, pigments and colours shall comply with all the parts of TZS 
638/EAS 377 . CDC 3(908) DTZS  
© TBS  – All rights reserved  2 
 4.2 Specific requirements  
Face packs  shall comply with the specific requirements given in Table 1 when tested in accordance with 
the test methods specified therein.  
Table 1 ― Specific requirements for face packs   
S/N 
 Characteristics  
 Requirements  Test method  
Type 1 - Paste  Type 2-Powder  
i.  Solid content (residue on evaporation), % 
by mass, min 10 - Annex A  
ii.  Loss on drying, percent  
by mass, max - 5 Annex A 
iii.  Ash content, % by mass*, min - 85 TZS 2127 -15/EAS 
847-15 
iv.  Stability  at 45  ºC ± 1 ºC for 
48 h phase separation  To pass the test  - Annex B 
v.  pH 5 – 9  TZS 2127 -17/EAS 
847-17 
*  Not applicable for plant based,  
 
 
Microbiological limits  
Face packs  shall comply with the microbiological limits given in Table 2 when tested in accordance with the 
test methods specified therein.  
Table 2 — Microbiological limits for face packs  
S.No.  Micro -organisms  Limits  Test methods  
i) Total viable count for aerobic mesophyllic 
microorganisms CFU/g or CFU/ml, max.  200 
(ISO 17516)  ISO 21149  
ii) Pseudomonas aeruginosa  
Staphylococcus aureus  
Candida albicans  
Escherichia  Coli Not detectable in 1 ml or 
1g of cosmetic product  ISO 22717  
ISO 22718  
ISO 18416  
ISO 21150  
 
4.4 Heavy metal contaminants  
Face packs  shall comply with the heavy metal limits given in Table 3 when tested in accordance with the 
test methods specified therein.  
 
 
 
 CDC 3(908) DTZS  
© TBS  – All rights reserved  3 
  
Table 3 — Heavy metal limits for face packs  
S/No.  Heavy metal  Limita, mg/kg, max  Test method  
i) Lead  10 
TZS 2127 -16/EAS 847 -16 ii) Arsenic  2 
iii) Mercury  2 
aThe total amount of heavy metals as lead, mercury and arsenic, in combination in the finished product shall not 
exceed 10 mg/kg.  
5. Packaging  and labelling  
 
5.1 Packaging  
Face packs  shall be packaged in suitable well -sealed containers that shall protect the contents and shall 
not cause any contamination or react with the product.  
5.2 Labelling  
In addition to the labelling requirements given in TZS 774/EAS 346 , each package of face pa cks shall be 
legibly and indelibly marked with following information:  
a) Name of product  (such as face packs/face mask/beauty mask)  
b) Type of product  
c) Instructions for use. 
d) Instructions for storage  and disposal.  
e) Precautions if any  
 
6. Sampling  
Sampling shall be carried in accordance with TZS 314 . CDC 3(908) DTZS  
© TBS  – All rights reserved  4 
 Annex A  
(normative)  
 
Determination of solid content (residue on evaporation)  and loss in drying   
A.1 Apparatus  
A.1.1  Glass Petri Dish  
A.1.2  Oven  
A.1.3  Desiccator  
A.1.3  Analytical balance  
A.2 Procedure  
Heat the clean petri dish in  a hot air oven at 105 °C  ± 2 °C for 15  - 20 minutes. Place it in a desiccator for 
20 minutes. Weigh the petri dish accurately. Weigh into the petri dish approximately about 2 -3 g of sample. 
Spread the product by rota ting the petri dish or using dry and clean spatula to form a layer. 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.   
A.3 Calculation  
A.3.1  Residue on evaporation, percent by mass =  100  𝑚2
𝑚1 
Where; 
m1 = mass in g of the sample taken, and  
m2 = mass in g of the residue.  
 
A.3.2  Loss on drying, percentage by mass =  𝑚1− 𝑚2
𝑚1 ×100 
 
 
 
 
 
 
 
 
 
 CDC 3(908) DTZS  
© TBS  – All rights reserved  5 
 Annex B  
(normative)  
 
Test for  stability  of face packs  
B.1 Apparatus  
B.1.1 Incubator — Maintained at 45 ºC ± 1 ºC  
B.1.2 Cylindrical Glass Bottles — with proper plug and cap  
 
B.2 Procedure  
Take a glass bottle and fill to three -fourth of its  capacity with the product and close it with plug and  cap 
tightly. Keep the bottle in an oven at 45 ºC ± 1 ºC for  48 h. Periodically examine the contents. The emulsion  
should not split leaving separate layers. Neither the  suspended pigments should settle.