DRAFT UGANDA STANDARD  
 DUS 1656 -1 
First Edition  
2016 -mm-dd 
 
 
  
DUS 1656 -1:2016 
© UNBS 2016   
   
Footwear  — Children’s shoes  — Specifications: Part 1: 2 years 
and below  
 DUS 1656 -1:2016  
ii © UNBS 2016  – 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 20 16  
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 4 505 995  
Fax: 256 41 4 286 123  
E-mail: info@unbs.go.ug  
Web: www.unbs.go.ug  DUS  1656 -1:2016  
© UNBS 2016  – All rights reserved  iii 
 Contents  Page 
Foreword  ................................ ................................ ................................ ................................ ............................  iv 
1 Scope  ................................ ................................ ................................ ................................ ......................  1 
2 Normative references  ................................ ................................ ................................ ............................  1 
3 Definitions  ................................ ................................ ................................ ................................ ..............  3 
4 Requirements  ................................ ................................ ................................ ................................ .........  3 
4.1 General requirements  ................................ ................................ ................................ ...........................  3 
4.2 Material requirements  ................................ ................................ ................................ ...........................  3 
4.2.1  Uppers  ................................ ................................ ................................ ................................ ....................  3 
4.2.2  Upper lining  ................................ ................................ ................................ ................................ ............  3 
5.2.3  Bottom/sole  ................................ ................................ ................................ ................................ ............  3 
4.2.4  Heel and top Piece  ................................ ................................ ................................ ................................ . 3 
4.2.5  Stiffener and toe Puff  ................................ ................................ ................................ ............................  3 
4.2.6  Insole and sock  ................................ ................................ ................................ ................................ ...... 3 
4.2.7  Whole shoe assembly  ................................ ................................ ................................ ...........................  3 
5 Workmanship and finish  ................................ ................................ ................................ .......................  4 
5.1 Workmanship  ................................ ................................ ................................ ................................ .........  4 
5.2 Trimming  ................................ ................................ ................................ ................................ ................  4 
5.3 Edge trimming  ................................ ................................ ................................ ................................ ....... 4 
5.4 Burnishing  ................................ ................................ ................................ ................................ ..............  4 
5.5 Defects  ................................ ................................ ................................ ................................ ....................  4 
5.6 Laces ................................ ................................ ................................ ................................ .......................  4 
6 Marking  ................................ ................................ ................................ ................................ ...................  4 
6.1 Footwear  ................................ ................................ ................................ ................................ .................  4 
6.2 Carton  ................................ ................................ ................................ ................................ .....................  5 
6.3 Bale  ................................ ................................ ................................ ................................ .........................  5 
7 Packing  ................................ ................................ ................................ ................................ ...................  5 
ANNEX A  (normative)   SAMPLING AND CRITERIA FOR CONFORMITY  ................................ ...................  13 
A.1 DEFINITIONS  ................................ ................................ ................................ ................................ ........  13 
A.2 SCALE OF SAMPLING  ................................ ................................ ................................ ........................  13 
A.3 METHOD OF SELECTION  ................................ ................................ ................................ ...................  13 
Bibliography  ................................ ................................ ................................ ................................ ......................  16 
 
 DUS 1656 -1:2016  
iv © UNBS 2016  – All rights reserved  
 Foreword  
Uganda National Bu reau 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 Org anisation 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 carr ied out through Technical Committees. A Technical 
Committee is established to deliberate on standards in a given field or area and consists of representatives of 
consumers, traders, academicians, manufacturers, government and other stakeholders.  
Draft Ugan da 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 standards 
for approval and declaration as Uganda Standards by the Na tional Standards Council.  
 DUS  1656 -1:2016  
© UNBS 2016  – All rights reserved  v 
 Introduction  
This draft Uganda Standard intends to give specifications for children’s shoes (2 years and below).  It will 
assist footwear manufacturers and merchants in getting value for their products. In addition it will give t he 
general consumers of the product bases to choose the products from an informed state.  
The main purpose of this working draft standard therefore is to provide a basis for evaluating the quality of 
children’s shoes (2 years and below)  
 DUS 1656 -1:2016    
 
© UNBS 2016 – All rights reserved   
 Footwear — Childr en’s shoes — Specification  — Part1: 
2 years and below  
1 Scope  
This draft Uganda  Standard specifies the requirements and test methods for children’s shoes  of 
children age 2 years and below. It covers  all types of materials , constructions and designs . 
2 Norma tive references  
The following referenced documents are indispensable for the application 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 . 
ISO 19952, Footwear -Vocabulary  
US ISO 9407, Shoes sizes -Mondopoint system of sizing and marking  
ISO 2589, Leather -Physical and mechanical tests -Determination of thickness  
ISO 17706, Footwear -Test methods for uppers -Tensile strength and elongatio n 
US ISO 3376, Leather -Physical and mechanical tests -Determination of tensile strength and 
percentage elongation  
ISO 17696, Footwear -Test methods for uppers, linings and insocks -Tear strength  
US ISO 11644, Leather -Test for adhesion of finish  
ISO 17700 , Foo twear -Test methods for uppers, linings and insocks -Colour fastness to rubbing  
ISO 17699, Footwear -Test methods for uppers and lining -Water vapour permeability and 
absorption  
ISO 5398 -1, Leather -Chemical determination of chromic oxide content by titration  
US ISO 20344, Personal protective equipment -Test methods for footwear  
US ISO 4045, Leather -Chemical tests -Determination of Ph  
US ISO 4048, Leather -Chemical tests -Determination of matter soluble in dichloromethane and 
free fatty acid content  
ISO 4047, Leathe r-Determination of sulphated total ash and sulphated water insoluble ash   
ii © UNBS 2016  – All rights reserved  
 ISO 40 98, Leather -Chemical tests -Determination of water soluble matter, water soluble 
inorganic matter and water soluble organic matter  
US ISO 3380, Leather -Physical and mechanical te sts-Determination of shrinkage temperature 
upto 100oc 
US ISO 105 -B02, Textiles -Tests for colour fastness to artificial light  
ISO 11642, Leather -Tests for colour fastness -Colour fastness to water  
ISO 20869, Footwear -Test method for outsoles, insoles, lining s and insocks -Water soluble 
content  
ISO 7619 -2, Rubber, vulcanized or thermoplastic -Determination of indentation hardness  
ISO 22654, Footwear -Test methods for outsoles -Tensile strength and elongation  
ISO 17707, Footwear -Test methods for outsoles -Flex resis tance  
ISO 20865, Footwear -Test methods for outsoles -Compression energy  
ISO 20875, Footwear -Test methods for outsoles -Determination of split tear strength and 
delamination resistance  
ISO 20874, Footwear -Test methods for outsoles -Needle tear strength  
US ISO 13287, Personal protective equipment -Footwear test method for slip resistance  
US ISO 4684, Leather -Chemical tests -Determination of volatile matter  
ISO 17072 -2, Leather -Chemical determination of metal content  
ISO 6942, Protection against heat and fire -Evalu ation of materials and material assemblies 
when exposed to a source of radiant heat  
ISO 3378, Leather -Physical and mechanical tests -Determination of resistance to grain cracking 
and grain crack index  
ISO 20876, Footwear -Test methods for insoles -Resistance to stitch tear  
ISO 22649, Footwear -Test methods for insoles and insocks -water absorption and desorption  
ISO 9073 -2, Textiles -Test methods for non wovens -Determination of thickness  
US ISO 17708, Footwear -Test methods for whole shoe -Upper sole adhesion  
ISO 1 7697, Footwear -Test methods for uppers, lining and insocks -Seam strength  
ISO 17702, Footwear -Test methods for uppers -water resistance  
ISO 20871, Footwear -Test methods for outsoles -Abrasion resistance  
ASTM D6182, Flexibility and Adhesion of finish on Leathe r 
ASTM D6020, Calculation of (Non mineral) Combined Tanning Agents and Degree of tannage  
  
© UNBS 2016  – All rights reserved  iii 
 3 Definitions  
For the purposes of this standard, the definitions given in ISO 19952  and the following 
definitions shall apply : 
3.1  
pu coated leather  
leather with a coating of polyurethane.  
3.2  
pvc coated textiles  
textiles with a coating of polyvinylchloride.  
3.3  
synthetic materials  
materials made of PU, PVC and other synthetic materials  which are use d as natural leather 
substitute  
4 Requirements  
4.1 General require ments  
The method of construction shall follow the princ iple applicable for that type. The sizing and 
fitting shall be in accordance with US ISO 9407 . 
4.2 Material requirements  
4.2.1 Uppers  
The upper characteristics shall comply with the requirements given in Table 1  
4.2.2 Upper lining  
The upper lining characteristics shall comply with the requirements given in Table 2  
5.2.3  Bottom/sole  
The bottom/sole characteristics shall comply with the requirements given in Table 3  
4.2.4 Heel and top Piece   
The heel and top piece characteristics shall comply with the requirements given in Table 4  
4.2.5 Stiffener and toe Puff  
The stiffener and toe puff characteristics shall comply with the requirements given in Table 5  
4.2.6 Insole and sock   
The insole and sock character istics shall comply with the requirements given in Table 6  
4.2.7 Whole shoe assembly  
The whole shoe assembly characteristics shall comply with the requirements given in Table 7   
iv © UNBS 2016  – All rights reserved  
 5 Workmanship and finish  
5.1 Workmanship  
The footwear shall be manufactured in  accordance with sound manufacturing practice . 
5.2 Trimming  
Unless the heel seats are of the extended type, heels shall be trimmed smooth to the heel 
seats . 
5.3 Edge trimming   
The sole edges (other than pre -moulded outer sole and heel units) shall be trim med smooth, 
stitched down construction  and shall be so trimmed that the distance beyond the outside of the 
stitching on the flanged portion of the upper is not less than 1.5 mm . 
5.4 Burnishing   
In leather footwear, the leather exposed at the sides of the h eels and at the edges of the 
bottom shall be stained, well waxed, set and polished . 
5.5 Defects   
Inner soles, runners and linings shall be free from protruding grinderies , roughness and pleats 
inside the shoe.  
5.6 Laces   
Each pair of lace -up shoes shall b e provided with one pair of  laces  
6 Marking  
6.1 Footwear  
a) At the waist of the sole, the size/ fitting number of footwear shall be legibly and indelibly 
marked;  
b)  On the sock the following shall be legibly and indelibly marked;  
i) Manufacturer’s name and/o r registered trade mark;  
ii) Size/ fitting number of footwear;  
iii) Country of manufacture/origin.  
c) On the quarters or the tongue, the following shall be legibly and indelibly marked;  
i) Manufacturer’s name and/or registered trade mark;  
ii) Batch number;  
iii) Size/ fitting number of footwear.   
© UNBS 2016  – All rights reserved  v 
 d) On either  the waist of the sole, the sock or the quarter, the manufacturer’s name or 
registered trade mark shall be legibly and indelibly marked.  
6.2 Carton  
Each  box shall bear the following information legibly and indelibly marked : 
i) Size of footwear  
ii) Manufacturer’ s name or registered trade mark  
iii) Colour of footwear  
iv) Colour of origin/manufacture  
v) Art identification number  
6.3 Bale  
Each bale shall bear the following information legibly and indelibly marked  
i) Name of product  
ii) Quantity  
iii) Net weig ht 
iv) Name of manufacturer or local supplier’s name and/or registered trade mark  
v) Country of manufacture/origin  
7 Packing  
Each pair of footwear shall be wrapped in a suitable material and packed in a suitable box that 
will protect it from damage during normal transportation and storage . 
Table 1 — Upper material characteristics and requirements  
Characteristic  Materials and requirements   
Leathe
r PU 
coated 
leather  Textile
s PU 
coated 
textiles  PVC 
coated 
textiles  EVA/M
CR PU PVC Others  
(includin
g 
composi
te 
materia l
s) Test 
methods  
(1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) 
Thickness (mm), 
min. 0.9 0.7 — 0.7 0.7 0.7 0.7 0.7 0.5 ISO 2589  
Tensile strength  
(MPa), min.  10 10 15 6 7.5 
2 6 6 6 ISO 17706 
& US ISO 
3376  
Elongation at break, 
(%), Min       80    ISO 17706 
& US ISO  
vi © UNBS 2016  – All rights reserved  
 30-80 30-80 15  10-50 10-50 200 250 
 40-80 3376  
Tear strength (N), 
min. 40 40 30 28 25 20 20 20 20 ISO 17696  
Rub fastness (Grey 
scale), min.  
dry 
wet 
  
 
3 
3  
 
3 
3  
 
3 
3  
 
3 
3  
 
3 
3 3 
3 
 
 
 
  
 
 
3 
3 
  
 
 
3 
3 
  
 
 
3 
3 
 ISO 17700  
 
Adhesion to finish,  
N/cm, min.   
1  
  
0.8  
—  
—  
— 
—  
—  
— 
 
  
— US ISO 
11644  
Break pipeness (BP 
scale), max.   
3  
4  
4  
4  
4 —  
4  
4  
4  
 
Breaking  load 
(N/mm), min.   
—  
—  
15  
10  
10 —  
—  
—  
— 
  
Water vapour 
permeability, 
mg/cm2h, min.   
1  
1  
2  
2  
1  
0.8  
2  
1  
0.8 ISO 17699  
Chrome content, %, 
max.   
4  
4  
—  
—  
— —  
— 
  
—  
— ISO 5398 -
1 
Water vapour 
coefficient 
(mg/cm2),min.   
30  
30  
30  
30  
30 30  
30  
30  
30 US ISO 
20344  
Martindale abrasion 
(revolutions) min.  
dry 
wet  
 
 
— 
—  
 
 
— 
—  
 
 
4000  
2000   
 
 
25600  
6400   
 
 
25600  
6400  
 
25600  
2000  
 
  
 
25600  
6400   
 
2560
0 
6400   
 
 
25600  
6400  US ISO 
20344  
pH value, min.  4 4 — 
 — 
 — 
 – — 
 — 
 — 
 US ISO 
4045  
pH difference, max.  0.2 0.2 — 
 — 
 — 
 – — 
 — 
 — 
 US ISO 
4045  
 
Fat content, (% 
m/m), min.   
3  
3  
—  
—  
— _  
— 
  
— 
  
— 
 US ISO 
4048  
Total ash, (%), max.  5 5 — — — 0.7 — — — ISO 4047   
© UNBS 2016  – All rights reserved  vii 
    
Total water soluble, 
(%), max.   
6  
6  
2  
2  
1 1  
1 
  
1 
  
1 
 ISO 4098  
Shrinkage, (%), 
max.  5 5 4 5 5 – 5 5 5 US ISO 
3380  
Light fastness, (blue 
wool standards), 
min.  
6  
6  
6  
6  
6 –  
6  
6  
6 US ISO 
105-B02 
Wash fastness, 
(grey scale), min.   
–  
–  
4  
4  
4 4 
  
4  
4  
4 ISO 11642  
KEY 
EVA-Ethyl Vinyl Acetate, MCR -Micro Cellular Rubber, TPR -Thermoplastic Rubber, PU -Polyurethane  
PVC-Polyvinyl Chloride  
 
 
Table 2 — Upper lining material characteristics and re quirements  
 
Characteristic   
Materials and requirements   
Test method  
Leather  PVC Textile  PU 
(1) (2) (3) (4) (5) (6) 
Thickness (mm),  min.  0.6 0.5 — 0.5 ISO 2589  
Tensile strength (MPa), min.  6 5 — 5 ISO 17706 & US ISO 
3376  
Elongation at break (%), min . 30 — 7 — ISO 17706 & US ISO 
3376  
Tear strength (N), min.  20 8 10 5 ISO 17696  
Rub fastness (gray scale), min.  
dry 
wet  
4 
4  
4 
4  
4 
4  
4 
4 ISO 17700  
Break pipiness (Bp scale), max.  3 4 4 4  
Breaking load (N), min.  — — 130 —  
Chrome content  (%), max.  3.8  
— — — ISO 5398 -1 
Water vapour permeability (mg/cm2, 
h), min.  1 2 
 2 
 1 
 US ISO 20344 & ISO 
17699  
Water vapour coefficient (mg/cm2), 
min. 30 30 
 30 
 30 
 US ISO 20344  
Martindale abrasion (Revolutions), 
min. — — dry 4 000  
wet 2 000  — US ISO 20344   
viii © UNBS 2016  – All rights reserved  
 PH value, min.  4 — 
 — 
 — 
 US ISO 4045  
Fat content (% m/m), min.  3 — — — US ISO 4048  
Total ash (%), max.  5 — — — ISO 4047  
Total water soluble (%), max.  6 1 2 1 ISO 4098 & ISO 20869  
Shrinkage %, max.  5 — 5 — US ISO 3380  
Light fastness (Blue wool  
standard s),  min.  4 4 4 4 US ISO 105 -B02  
© UNBS 2016  – All rights reserved  ix 
 Table 3 — Bottom/sole material characteristics and requirements  
 
Characteristi
c Materials and requirements  Test 
method   
Vulcani
zed 
Rubber  
  
PVC  
PU  
TP
R  
EVA/MCR   
Leather  Resin 
rubber   
Blown 
PU  
BlownP
VC Other  
material s
(including 
Composit
e) 
(1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) 
Hardness 
(IRHD)  60 – 85 50 – 85 45 – 
90 45 
– 
80 30 – 55 — 85 – 
98 30 – 
55 50-60 40-90 ISO 7619 -2 
Specific 
gravity, max  1.35 1.4 0.45–
0.65 1.1
5 0.65 0.9 
. 1.55 0.25-
0.55 0.6-0.9 1.7  
Tensile 
strength 
(Mpa)  7 6 6 5 2 — 5.5  
2 6  
1.5 ISO 22654  
Elongation at 
break (%), 
min 
Before 
ageing  
After ageing   
 
300 
110  
 
250 
  
 
 
200  
500  
400  
80  
—  
 
120 
110  
 
 
80  
 
 
100  
 
 
60-120 ISO 17706 &  
US ISO 
3376  
Flex 
resistance 
Initial crack 
(cycle s), max  
Cut growth at 
150000 
cycles (%), 
max  
 
50 000  
600  
 
30 000  
600  
 
50 000  
600  
 
30 
000 
600  
 
25 000  
800  
50 000   
 
5 000  
500  
 
 
 
 
 
25 
000 
800  
 
 
 
 
 
25 000  
800  
 
 
 
 
 
25 000  
800 ISO 17707  
Compression 
set %, max  25 25 25 25 35 25 25 35 35 35 ISO 20865  
Split tear 
strength (N), 
min 10 7.5 7.0 10 6.0 30 7.5  
6.0  
6.0  
6.0 ISO 20875  
Stitch tear 
strength 
(N/mm), min  70 40  35 25 55 100 50  
25  
25  
25 ISO 20874  
Slip 
resistance 
(coefficient of 
friction), min  0.5 0.5 0.5 0.5 0.5 – 0.5  
0.5  
0.5  
0.5  US ISO 
13287   
x © UNBS 2016  – All rights reserved  
  
Table 4 — Insoles and sock characteristics and requirements  
 
Characteristic  Requirement  
Test method  
Insole  Sock  
Thickness (mm), min.   
1.5 
  
1.0 
 US ISO 20344  
Water absorption (%), max.  
Water desorption (%), max.  
 35 
40 – 
– US ISO 20344  
flexibility (cycles),  mi n. 40 000  
 – 
 ASTM D6182  Abrasion 
loss 
(mm3), 
max.  350 300 400 250 900 300 300 600 450 600 ISO 20871  
Volatility 
(%), max.  – 2 – – – – – — 
 2 — 
 US ISO 
4684  
Lead Pb 
(ppm), 
max.  – 1 – – – – – — 
 — 
 — 
 ISO 17072 -
2 
Total ash 
(%), max.   – – – – 3 – — 
 — 
 — 
 ISO 4047  
Total 
water 
soluble 
(%), max.  – – – – – 21 – — 
 — 
 — 
 ISO 4098 &  
ISO 20869  
pH value, 
min. — 
 — 
 — 
 — 
 — 
 4 — 
 — 
 — 
 — 
 US ISO 
4045  
pH 
difference,  
max.  — 
 — 
 — 
 — 
 — 
 0.7 — 
 — 
 — 
 — 
 US ISO 
4045  
Heat 
shrinkage 
(%), max.  4 4 4 4 4 4 4  
4  
4  
4 ISO 6942  
Degree o f 
tannage, 
min. – – – – – 60 – – – – ASTM 
D6020  
Grain 
cracking 
on  
mandrel 3  – – – – – No 
crack  –  
–  
–  
– ISO 3378  
KEY:  
EVA-Ethyl Vinyl Acetate, MCR -Micro Cellular Rubber, TPR -Thermoplastic Rubber, PU -Polyurethane  
PVC-Polyvinyl Chloride  
  
© UNBS 2016  – All rights reserved  xi 
 Shrinkage (%), max.  4 4 US ISO 3380  
pH value  4 4 US ISO 4045  
pH difference  0.7 0.7 US ISO 4045  
Tear Strength (N/mm), min   
10 
  
20 
 ISO 20876  
Rub fastness (grey scale), min.  
wet 
dry  
4 
4  
4 
4 US ISO 105 -B02 
Water vapour permea bility (mg/cm2h), min.  1 1 US ISO 20344 & 
ISO 17699  
Coefficient of water vapour permeability g/cm2, , 
min. 30 30 US ISO 20344  
 
Table 5 — Stiffener and toe puff characteristics and requirements  
 
 
 
 
 
 
 
 
 
 
 
 
 
 Characteristic  Requirement   
Test method  Stiffener  Toe puff  
Hardness (IRHD), min.  70 50 ISO 7619 -2 
Flexibility (cycles), min.  50 000  50 000  ASTM D6182  
Water absorption (%), min.  25 25 US ISO 20344 & 
ISO 22649  
Resilience (%), min.  35 35  
Thickness (mm)  1.0 0.6 ISO 9073 -2  
xii © UNBS 2016  – All rights reserved  
 Table 6 — Physical requ irements for the whole shoe assembly  
 
Characteristic   
Requirement   
Test method  
 
Sole adhesion strength, ( n), min.  
Leather  
PVC/PU  
Rubber  
EVA/MCR  Sole        Heel/fore part  
130  
130 
70                 130 
70                 130  US ISO 17708  
Seam strength ( N/mm), min.  20 ISO 17697  
Water penetration after 5 h, max.  
Mass change (%), max.   
None  
5 ISO 17702  
Sole bond strength (N/mm), min.  4 US ISO 20344  
Finishes  
a) Buttons and trims attachment strength   (N), min.  
b) Buckle fastening strength (N), min.  
Buckle /eyelets/buttons rusting, max .(presence of rust)  
 40 
40 
None   
 
 
 
 
 
 
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
 
 
 
 
 
 
 
 
 
 
 
 
  
© UNBS 2016  – All rights reserved  xiii 
 ANNEX A  
(normative )  
 
SAMPLING AND CRITERIA FOR CONFORMITY  
A.1 DEFINITIONS  
A.1.1 Lot — All footwear pairs in a consignment belonging to the s ame pattern/design and 
batch of manufactured shoes delivered  or imported . 
A.1.2 Defect — A fault or failure of a footwear pair to meet the requirements of this standard . 
A.1.3 Defective Footwear — A footwear pair with one or more defects as mentioned in th is 
standard . 
A.2 SCALE OF SAMPLING  
A.2.1 Samples shall be selected and examined for each lot separately for ascertaining  the 
conformity of the footwear to the requirements of this standard . 
A.2.2 Footwear shall be considered to be of different lots if they  differ in shape and design . 
A.2.3 The number of footwear  pairs to be selected from any lot shall depend on the size of 
the lot and shall be in accordance with Columns 1 and 2 of Table A1 . 
A.3 METHOD OF SELECTION  
A.3.1 Footwear to be selected from the lot shall be chosen at  random. To ensure 
randomness the procedure in A3.2 shall be used . 
A.3.2 When the footwear pairs in a lot are not packed in a number of cases (boxes), the 
sampling shall be as follows:  
a) Starting from any footwear pair in the lot, count the  pairs as 1 , 2, etc---up to r and so on 
in one order. Every rth pair thus counted shall be withdrawn to constitute a sample (r is 
the integral part of N/n where N is the lot size and n is the sample size). This procedure 
shall be stopped as soon  as the req uired number of pairs is obtained.  
b) For example if a sample of 125 pairs is to be selected from a lot of 3,000 pairs , 
compute r as equal to integral part of 3,000/125=24. Starting from any pair, the 
footwear shall be counted in one order and every 24th pa ir shall be withdrawn.  
A.3.3 When the footwear pairs in a lot are packed in different cases ( boxes), a suitable 
number of boxes (not less than 30 per cent of  the total boxes in the lot) shall be first chosen at 
random. For  each of the boxes so chosen, an approximately equal  number of pairs shall be 
picked up from its different parts so as to obtain the required number of pairs. For  example, if a 
lot consists of 1,000 pairs of footwear packed in 50 boxes each containing 20 pairs, choose  
more than 15 boxes at  random. If it is decided to open 20 boxes, then 4 pairs shall be picked 
up from different parts of each of the 20 boxes to give a total of 80 pairs as  specified in Table 1.   
xiv © UNBS 2016  – All rights reserved  
 TABLE A.1.SCALE OF SAMPLING AND PERMISSIBLE NUMBER OF DEFECTS  
 
NO. OF FOOTWEAR 
PAIRS IN A LOT  
 
  
SAMPLES FOR 
VISUALLY 
OBSERVED 
DEFECTS  
(PAIRS)   
PERMISSIBLE 
NO. OF 
DEFECTIVES  
(PAIRS)   
SAMPLE SIZE FOR 
LABORATORY 
TESTING  
(PAIRS)   
PERMISSIBLE 
NO. OF 
DEFECTIVES  
(PAIRS)  
(1) (2) (3) (4) (5) 
Up to 50  13 0 2 0 
51 to100  20 1 3 0 
101 to 300  32 1 3 0 
301 to 500  50 2 5 1 
501 to 1000  80 3 6 1 
1001 to 3000  125 5 7 2 
3001 and above  200 7 8 3 
 
A.4 All randomly selected footwear pairs (Table A1, Column 2) shall be inspected for visually 
observed defects, i.e.  
a) Difference in shape, design and colou r. 
b) Odd pairing and incorrect size.  
c) Distorted shapes.  
d) Faulty jointing and adhesion of sole, heel, toe guard, toe cap and insole.  
e) Insole cut short.  
f) Broken stitches and incorrect stitching.  
g) Missing or defective eyelets/speed hooks or eyeleting/hooking.  
h) Variat ions in positioning of eyelets/speed hooks.  
i) Stiffener not centrally placed.  
j) Unfit lace.  
k) Finish not even and unpolished.  
l) Missing or defective buckles/buckling assembly.   
© UNBS 2016  – All rights reserved  xv 
 A.5 The number of defective footwear pairs shall not exceed t he permissible number given  in 
Table A1, Column 3. If however, the number of defective pairs exceeds the permissible number 
of defectives, the lot shall be rejected.  
A.6 In case the lot has been found satisfactory for visually observed defects, sample pairs for 
laboratory testing (T able A1, Column 4) shall be taken from among th ose drawn (Table 1A, 
Column 2).  The pairs shall be chosen at random and tested for dimensional, physica l and 
chemical characteristics.  If the number of defective footwear is less than or equal to the 
correspon ding permissible number of defectives given in Table A1, Column 5, the lot shall be 
declared to have met the  requirements of this standard.  Otherwise if the defective footwear 
pairs are more than the corresponding permissible numbers of defectives the lot shall be 
rejected.   
xvi © UNBS 2016  – All rights reserved  
 Bibliography  
During the preparation of this standard reference was made to the following publications:  
[1]  KS 08 -893:1993, Kenya Standard specification for upholstery  fabrics Part 2. Coated 
fabrics  
[2]  MS 887:1982, Malaysian Standard s pecification for spike proof combat boots.  
[3]  IS 2060:1984, Indian standard specification for gent’s shoes.  
[4]  SABS 421:1976, The South African Standard specification for the production of men’s 
shoes (Goodyear  welted with stitched or stuck -on outer so les). 
[5]  SABS 1363:1999, South African Standard specification for young people’s shoes 
(Stuck -on and stitch  down construction).  
[6]  KS 01 -679:1989, Specification for sole leather.  
[7]  BATA Shoe Company specifications.  
Acknowledgement is hereby made for  the assistance obtained from these sources.