tbs           TDC2 (5604)P 3 
 
 
 
 
 
 
 
 
 
 
Draft Tanzania standard  
Footwear -Sportswear S pecification  
 
 
 
 
 
 
 
 
 
 
 
TANZANIA BUREAU OF STANDARDS  
 
 
 
1 
 Draft Tanzania Standard                                      TDC2  (5604)  P3 
Footwear –Sportswear  - Specification  
 
0. Foreword  
0.1  This Draft Tanzania Standard  lays down b asic requirements for  sportswear  in order to 
assist the manufact ures to produce the products that are of acceptable quality and value . 
0.2 In deciding whether a particular requirement of this Draft Tanzania S tandard is complied 
with, the final value, observed or calculated expressing the result of a test or analysis, shall be 
rounded off in accordance with TZS 4:2009 –Rounding off numeric values.  
0.3 In the preparation of this Draft Tanzania Standard assistance  was derived from:  
IS 15844: 2010 -Sports Footwear -Specification , published by the Indian Standards Institution.  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
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 1.  Scope  
This Draft Tanzania  Standard prescribes the performance requirements of sports footwear  for 
all sports in regardless of design and materials . 
2.  Normative r eferences  
For the purpose of this  Draft Tanzania  Standard, the following references shall apply:  
a) TZS 4: 2009 – Rounding off numerical values  
b) TZS 22: 2016 -woven fabrics -Determination of breaking load and extension  
c) TZS 41 : 2016Textiles – Tests for colour fastness -Grey scale for assessing change in 
colour  
d) ASTM D 2240 -5 Standard Test Method for Rubber Property —Durometer Hardness  
e) TZS 21:  2016– Determination of mass per unit length and per u nit area . 
f) TZS 26– Textiles - Determination of conductivity, pH, water -soluble matter, chlorine 
and sulphate in aqueous extracts  
g) TZS 44 –Textiles -Woven or knitted fabrics -Determination of length and width  
h) TZS 250:   Method for determination of absorbency of absorbent textile material.  
i) TZS 276: 2018 -Footwear -Method of sampling  
j) TZS 277:1985 Footwear - Determination of strength of adhesion at toe and at the 
heel of stuck -on or molded on sole.  
k) TZS 412: 1989 -Textiles – Method of test for abrasion resistance of fabrics  
l) ISO 13935 -1:2014Textiles -- Seam tensile properties of fabrics and made -up textile 
articles -- Part 1: Determination of maximum force to seam rupture using the strip 
method.  
m) TZS 198: 1984, Leather – Determination of chromium as chromi c oxideextract  
n) TZS 201: 1984, Leather – Determination of shrinkage temperature  
o) TZS 205: 1984, Leather – Physical testing – Measurement of thickness  
p) TZS 208: 1984, Leather – Determination of tear strength  
q) TZS 212: 1984, Leather – Determination of tensile st rength and elongation  
r) TZS 211: 1984, Leather – Determination of colour fastness to -and-fro – Rubbing (wet 
and dry)  
 
 
  
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 3.  Terminology  
For the purpose of this Draft Tanzania Standard, de finitions given in TZS 275:1986 -Footwear -
Glossary of terms shall apply . 
4.   Requirements  
4.1 Material  
4.1.1The upper material used in the sports footwear shall conform to variou s require ments given 
in Tables 1  depending on the type of the material.  
 
4.1.2 Sports footwear shall be such that it would bend easily from foot to toe and shall retain its 
original shape imme diately after release of force.  
 
4.1.3  Midsole  
The midsole material used in the sports footwear shall conform to various requireme nts 
prescri bed in Table 2  depending on the type of material. Specific gravity and hardness shall be 
as agreed to between the purchaser and the supplier.  
4.1.3 Outsole  
The outsole material used in the sports footwear shall conform to various requireme nts 
prescribed in Table 3  depending on the type of material. Specific gravity and hardness shall be 
as agreed to between  the supplier  and buyer . 
4.1.4 Insole  
The insole material used in the sports f ootwear shall conform to the requirements specified in 
Table 4  depending  on the type of material.  
4.1.5Sock liner  
The sock liner  material used in the sports f ootwear shall conform to the requirements specified 
in Table 4 depending  on the type of material.  
 
  
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 3.1.6 Laces  
The lace material used in the sports fo otwear shall conform to the requirements described in 
Table 5 . 
3.1.7 Metallic Trims and Components  
The metallic trims and components material u sed in the sports footwear  shall be of an 
acceptable quality and intrinsically corrosion -resistant material . The  trims shall  be analyzed for 
corrosion resistance as per Annex  A 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
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 Table 1 : Requirement for Upper Materials  
S/N  
Characteristics  Requirements   
Test Method  Leather  Synthetic  materials  Textiles 
fabrics  
1 Flexing endurance, 
number of flexes before 
loss of adhesion of finish 
layer, min.  
 After 10 000 
cycles  
 
 
 After 30 000 
cycles  
 
 
 
 
 
 
 After 100 000 
cycles   
Only fine cracks are 
permitted  
Neither the width nor 
the depth of these 
cracks shall have 
increased sharply and 
there shall be no sign 
of the finish flaking or 
separating  
 
No cracking of layer, no 
damage of film, no 
grain folds or 
powdering of top finish   
Only fine cracks are permitted  
 
Neither the width nor the depth 
of these cracks shall have 
increased sharply and there 
shall be no  sign of the finish 
flaking or separating  
 
 
No cracking of grain layer, no 
damage of film, no grain folds 
or powdering of top finish   
 
- 
 
 
 
- 
 
 
 
 
 
 
 
 
-  
 
 
 
 
TZS 206 : 1984  
2 Adhesive strength,  to 
sole/midsole, kg/cm, Min   
3  
3  
3  
TZS 277: 1985  
3 Tensile  strength, MPa, 
min. 
 Split leather: 15  
Full grain: 20   
20  
-  
     TZS 22: 2018  
TZS 212 : 1984  
4 Elongation at break, 
percent, Min  
40  
15  
15  
TZS 212: 1984  
5 Lastometer test, mm, Min  Crack:  7  
Burst:  10  - -  
TZS 207: 1984  
 6 Tear strength, kgf, Min  4 3 3 TZS 208: 1984  
7 Colour fastness, m in 
 Light  
 Washing  
 Rubbing  
o Dry  
o Wet   
4 
4 
 
4 
4  
3 or better  
3 or better  
 
4 
4  
4 
4 
 
4 
4  
TZS 211 : 1984  
 
 
TZS 138: 2016  
8 Chrome content %, min  3 3 - TZS 198: 1984  
9 Total  ash %, max  5 5 - TZS 197: 1984  
 10 pH value,  min. 3.5 3.5 3.5 TZS 26: 2018  
TZS 199 : 2015  
 
  
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Table 2:  Midsole Material s 
S/N  
Characteristics   
Requirements   
Test method  
1 Thickness (mm), min.  0.8 TZS 205 : 1984  
2 Tensile strength, kg/cm, Min  15 TZS 212 : 1984  
3 Elongation at break, percent, min  200 TZS 212: 1984  
 4 Tear strength, kg/cm, min  5 TZS 208: 1984  
5 Adhesion to sole, kg/cm, min  3 TZS 277: 1985  
 
Table 3:  Outsole material requirements  
S/N  
Characteristics   Requirements   
Test method  
Rubber  TPU/ TPR  PU PVC EVA 
1 Thickness (mm), min  4 TZS 205 : 1984  
2 Compression set, %, 
max  
20  
15  
20  
15  
33  
Annex B  
3 Tensile strength, 
(MPa)  6 5 5 8 2.5 TZS 212: 1984  
4 Elongation at break, 
(%), min.  300 400 300 250 250 TZS 22 : 2018  
TZS 212: 1984  
5 Shrinkage  (%), max  - - - - 3 TZS 137:2017  
TZS 201: 1984  
6 Abrasion loss , mm3 
,max  300 300 300 250 400  
TZS 412: 1989  
8 Adhesion to sole, 
kg/cm, min   
3  
TZS 277: 1985  
 
NOTE  
TPR-Thermoplastic rubbers  
PU-Polyurethane  
PVC-Polyvinylchloride  
EVA-Ethylene Vinyl Acetate  
  
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Table 4:  Insole  and S ock liner requirements  
S/N  
Characteristics   
Requirements   
Test method  
Insole  sock  liner  
1 Tear strength, kg/cm,  10 10 TZS 208: 1984  
2 Thickness, mm, min  1.5 1.0 TZS 205 : 1984  
3 Water absorption and loss, 
percent, min  
 Water uptake  
 Water loss   
 
35 
40  
 
- 
-  
 
TZS 250: 1985  
4 Shrinkage (%), max  2 2 TZS 201: 1984  
5 pH value  3.5 3.5 TZS 26: 2018  
TZS 199: 1984  
6 Water vapour permeability, 
mg/cm2 h,  
1.5  
1.5 ISO 17699  
7 Colour fastness  to rubbing  
 Dry 
 wet  
4 
4  
4 
4  
TZS 138: 2016  
 
 
 
Table  5:Lace Material  requirements  
S/N  
Characteristics   
Requirements   
Test method  
1 Breaking  strength, kg/cm,  35 TZS  22 : 2018  
 
2 Colour fastness, grey scale 
rating, min   
3 or better   
TZS 41 : 2016  
3 
  Abrasion resistance, 
cycles, min   
4000   
TZS 412: 1989  
 
 
  
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Table 6: Toe-puffs and Stiffener requirements  
S/N Characteristics  Requirements  Test method  
Toe-puff stiffener  
 
1 Flexing, cycles at first 
crack,    TZS 206: 1984  
30000  40000  
2 Resilience, %, min  40 40 SANS 6214  
3 Water absorption, %, 
max.  25 25 TZS 250 : 1989  
4 Area shape retention, 
%, min  
 Initial  
 After 1 collapse   
 
50 
40  
 
55 
40  
 
SANS 6233  
5 Hardness (IRHD)  50 70 ASTM D 2240 -5 
 
Note:  IRHD=International Rubber Hardness Degree  
 
 
 
 
 
 
 
 
 
 
 
 
  
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5.  Workmanship and finish  
The appearance, work manship, finish and all other a spects not mentioned in this specification shall be of 
acceptable  quality for trading practice.  
6.  Packing and M arking  
Each pair of sports footwear shall be packed in an individual box in order to protect them from damage 
during transportation, storage and handling  
6.1 Marking  
6.1.1 Sports footwear  
The following information shall be marked on socks or tongue of sports footwear:  
a) The size of the sport footwear,  
b) The manufacture’s name or trade mark,  
c) The design of the sports footwear , 
d) The types of upper materials  i.e. leather or   non -leather material,  
e) Any ot her information required by purchaser  
 
6.1.2 Boxes  
Each box shall bear the following information given in neat and legible marking at a position that is visible 
when boxes are stacked:  
a) The manufacturer’s name or trademark;  
b) The size of the sports footwear ; 
c) The design of the sports footwear ; 
d) Any o ther information required by the purchaser . 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
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7.  Sampling and C ondition ing 
7.1 Sampling  
For all tests mentioned in this Draft T anzania Standards, the sportswear shall be sampled for testing at 
least after  72 hours of  manufacturing . Unless otherwise agreed, the  test shall be conducted at least three 
times for each chara cteristic given in table 1 and 6 .  
7.2 Conditioning sampl es 
Unless otherwise agreed, the test specimens shall be conditioned for 24 hours at 27  ° C ± 2 ° C, and (65 
± 5%) relati ve humidity (RH)  
8.  Test report and rules of acceptance and rejection    
8.1 Each consignment of sports footwear shall be accompanied by a certificate indicating its compliance 
with the requirements of this Draft Tanzania Standard.   
8.2 The lot shall be considered conforming to the requirements of this Draft Tanzania Standard, if  the 
samples representing it pass all the tests specified in this standard, otherwise, it shall be considered non -
conforming.   
 
 
 
 
 
 
 
 
 
  
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ANNEX A  
CORROSION  TEST  
A-1 Chemical  
1% Sodium  chloride solution . 
A-2 Test piece  
Three numbers of test pieces from the lot.  
A-3 Apparatus required  
A-3.1 De siccator  
A-3.2 Air Circulating Oven  
A-4 PREPARATION OF SAMPLES  
A-4.1 Soak a large piece of washed, bleached cotton fab ric in the sodium chloride solution.  
A-4.2 Allow the fabric to dry.  
A-4.3 Cut the fabric up into small strips, approximately 6 cm × 3 cm.  
A-4.4 The metallic trims/components are wrapped in the fabric and bound with a thread to ensure 
contact.  
A-5 PROCEDURE  
A-5.1 Lay the dry test pieces in a dish.  
A-5.2 Place the dish in a desic cator with a little distilled water, and store for 3 days at 35◦C. 
A-6 EVALUATION  
Visually examine the metallic trims/components for signs of corrosion and report.  
 
 
 
  
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ANNEX B  
COMPRESSION SET (STATIC)  
B-1 DESCRIPTION  
This method is used to measure the ability of a foam material to return to its original thickness after being     
Compressed/deflected between two parallel plates at a spe cified temperature and duration  
B-2 MATERIALS  
B-2.1 Midsole or Sockliner made  of Foam Material  
 
B-3 EQUIPMENT  
B-3.1 Compression Apparatus  
B-3.2 Spacers, of thick ness 4.0, 4.5, 5.0, 5.5 and 6.0 mm. 
B-3.3 Thickness Gauge, as  described in TZS 205: 1984  
B-3.4 Air-Circulating Oven, capable of maintaining 45.0 ± 1.0°C.  
B-4 SAMPLE PREPARATION  
Die cut four test samples having a diameter of 25.4 mm and a thickness of 10.0 ± 1.0 mm. The sample 
must be prepared with parallel top and bottom surfaces, and sides, which are perpendicular to the top 
and bottom surfaces. If a test sample is l ess than 8.0 mm, multiple layers of the test material must be 
stacked, without the use of adhesive, until a thickness of 10.0 ± 2.0 mm is obtained.  
B-5 REPETITIONS  
Test four samples per material.  
B-6 TEST PROCEDURE  
Measure the thickness of the samples. Pla ce the appropriate s pacers on the compression plate , such that 
50 per cent compression will be obtained, as follows:  
 
 
 Sample Thickness (mm) Spacer Thickness  (mm)  
 
 
                                         8.0-8.5                                                       4.0  
                                         8.5-9.5                                                       4.5                                                                                           
                                         9.5-10.5                                                     5.0      
                                        10.5-11.5                                                    5.5     
                                        11.5-12.0                                                    6.0         
 
  
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 Place the test  specimen onto the bottom plate and position the top plate  onto the test specimen. Tighten 
the nuts on the test  equipment until the top plate  firmly contacts each of the spacers. With 15 min after 
compressing the samples, place the compression set equipment with test samples into their appropriate 
environment as described below:  
 
a) EVA, Latex, Polyethylene = 30 ± 2°C f or 6 h  
b) Polyurethane = 23 ± 2°C for 22 h  
At completion of the exposure, immediately remove the test sample from the compression set equipment. 
Allow the materials to recover at 27 ± 2°C as described below:  
a) EVA, Latex, Polyethylene = 30 ± 2 min  
b) Polyurethane  = 60 ± 2 min  
Immediately following the completion of the recovery period, measure the thickness of the samples, in the 
same manner described above. If the sample has set unevenly, record the minimum thickness.  
 
B-7 CALCULATION  
Compression set, in percenta ge = Original thickness         Final  thickness     
                                                Х 100  
                                                                   Original thickness     
B-8 REPORT  
The average of the four test samples to the nearest  0.1 percent