DRAFT UGANDA STANDARD  
  DUS 1687 -3 
First  Edition  
2017 -mm-dd 
 
 
 Reference number  
DUS 1687 -3: 2017  
© UNBS 2017   
  
School Clothing  — Part 3: Trousers and Shorts  
 DUS 1687 -3: 2017  
ii © UNBS 2017  – 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 co rrect application  
© UNBS 2017  
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 
perm ission 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 1687 -3: 2017  
© UNBS 2017  – All rights reserved  iii 
 Contents  Page 
Foreword  ................................ ................................ ................................ ................................ ............................  iv 
1 Scope  ................................ ................................ ................................ ................................ ......................  5 
2 Normative references  ................................ ................................ ................................ ............................  5 
3 Definitions  ................................ ................................ ................................ ................................ ..............  5 
4 Materials  ................................ ................................ ................................ ................................ .................  5 
4.1 Outer Materials  ................................ ................................ ................................ ................................ ...... 5 
4.2 Supplementary materials and components  ................................ ................................ ........................  5 
5 Style, size and make ................................ ................................ ................................ ..............................  5 
5.1 Style  ................................ ................................ ................................ ................................ ........................  5 
5.2 Size................................ ................................ ................................ ................................ ..........................  6 
5.3 Make  ................................ ................................ ................................ ................................ ........................  7 
5.3.1  General  ................................ ................................ ................................ ................................ ...................  7 
5.3.2  Waist band  ................................ ................................ ................................ ................................ .............  7 
5.3.3  Fly ................................ ................................ ................................ ................................ ............................  7 
5.3.4  Pockets  ................................ ................................ ................................ ................................ ...................  7 
5.3.5  Bottoms  ................................ ................................ ................................ ................................ ..................  7 
5.3.6  Buttonholes  ................................ ................................ ................................ ................................ ............  7 
5.3.7  Seams  ................................ ................................ ................................ ................................ .....................  8 
5.3.8  Hems  ................................ ................................ ................................ ................................ .......................  8 
5.3.9  Allowance for alterations  ................................ ................................ ................................ ......................  8 
6 Packing, care -label ling and marking  ................................ ................................ ................................ ... 8 
7 Inspection  ................................ ................................ ................................ ................................ ...............  8 
Annex  A  (normative)  Notes to purchasers  ................................ ................................ ................................ .... 9 
 DUS 1687 -3: 2017  
iv © UNBS 2017  – 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 mandated to co -
ordinate the ela boration 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 Organis ation (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 government, academia, consu mer 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 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 7, Textile, Leather Paper and Related 
Products , Subcommittee SC 1, Textile and Related Products . 
DUS 1687  consists of the following parts, under the general  title School Clothing :  
Part 1: General  requirements for school clothing.  
Part 2: Blazers.  
Part 3: Trousers  and shorts.  
Part 4: Shirts.  
Part 5 : Dresses, tunics  and gyms.  
Part 6 : Girls'  slacks and  skirts.  
Part 7 : Knee -high stockings and  ankle socks.  
Part 8: Jerseys and  cardigans.  
Part 9 : Briefs.  
Part 10 : Tracksuits.  
Part 11 : Athletic  wear.  
 DUS 1687 -3: 2017  
v  
 School Clothing  — Part 3: Trousers and Shorts  
1 Scope   
This part of  DUS 1687  specifies the material s, cut, make and trim of  trousers and shorts.  
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 editio n cited applies. For undated 
references, the latest edition of the referenced document (including any amendments) applies.  
DUS 1687 -1, School clothing — Part 1: General requirements for school clothing  
US ISO 4915, Textiles — Stitch types — Classification and terminology  
3 Definitions  
For the purposes of this part of DUS 1687 , following definition applies : 
Size designation  
The age (for sizes  to fit intended  wearers  up to twelve  years), or  the Imperial  size (for sizes  to fit intended  
wearers  older  than twelv e years)  as well as the numerical  value,  in centimetres,  of the waist girth of the 
intended  wearer  
 4 Materials  
4.1 Outer Materials  
The outer material shall be of the required fabric that complies with the relevant requirements given in table  1 
of DUS 1687 -1. (The note to 4.1  of DUS 1687 -1 shall also apply)  
The colour(s) of the dyed fabric shall be an acceptable match to the required colour(s) as agreed upon 
between the purchaser and the  supplier.  
4.2 Supplementary materials and components  
The supplementary  materials  and components  shall comply  with the relevant  requirements  laid down in 4.2  of 
DUS 1687 -1. 
5 Style,  size and  make  
5.1 Style  
The trousers or shorts should  have two side pockets and one hip pocket, and may have a fob pocket, if 
required.   
vi © UNBS 2017  – All rights reserved  
 The waist  band  shall have  belt-loops  or shall be elasticized; the bottoms  shall be plain  or shall have  
permanent  turn-ups, all  as required. The  fly shall be slide -fastening.  
5.2 Size 
The trousers  and shorts  should  be supplied  in one (or more)  of the size designatio ns given  in column 1  of 
table 1, as required.  Measurements  of shorts , determined in accordance  with 4.3.4  of DUS 1687 -1, shall 
conform to the appropriate  values  given in  column 2 of  table  1 
Measurements  of trousers , determined in accordance  with 4.3.4  of DUS 1687 -1, shall conform  to the 
appropriate values given in  columns  3, 4 and 5 of table  1. 
Table  1— Size range for trousers and shorts (based on size and waist)  
Dimensions in centimetres  
1 2 3 4 5 
Size 
designation1)  Finished garment measurement  
Waist  Inside leg length( trousers only)  
Regular 
regular fit  Loose fit  Regular long fit  
Age 4  
To fit waist 54 
Age 5 -6 
To fit waist 56 
Age 6 -7 
To fit waist 58 
Age 7 -8 
To fit waist 61 
Age 8 -9 
To fit waist 63 
Age 9 -10 
To fit waist 65 
Age 11  
To fit waist 67 
Age 12  
To fit waist 68 
 56 
 
58 
 
60 
 
63 
 
65 
 
67 
 
69 
 
70 43.5 
 
46 
 
52 
 
57.5 
 
61.5 
 
66 
 
69.5 
 
73.5 43.5 
 
46 
 
52 
 
57.5 
 
61.5 
 
66 
 
69.5 
 
73.5 44 
 
46.5 
 
52.5 
 
58 
 
62 
 
66.5 
 
70 
 
74 
28 
To fit waist 71 
30 
To fit waist 76 
32 
To fit waist 81 
34 
To fit waist 87  73 
 
78 
 
83 
 
89 
 78.5 
 
82 
 
84 
 
85 
 73.5 
 
82 
 
84 
 
85 
 79.5 
 
83 
 
85 
 
86 
  
© UNBS 2017  – All rights reserved  vii 
 36 
To fit waist 92 
38 
To fit waist 97 
40 
To fit waist 102 
 94 
 
99 
 
104 
 
 85 
 
85 
 
85 
 
 85 
 
85 
 
85 
 
 86 
 
86 
 
86 
 
 
1)Based on the age and the waist measurements of the intended wearer  
 
5.3 Make  
5.3.1  General  
The relevant requirements for garments given in 4.3 of DUS 1687 -1 shall apply.  
5.3.2  Waist band  
5.3.2.1  Belt-loops  
A waist  band  with belt-loops  should  have  at least  six belt-loops  in the case  of size designations  54 to 76 
(inclusive)  and eight  belt-loops  in other  cases,  shall be lined  with an acceptable  ready -made  band lining, and 
shall fasten at the top of the fly with a hook and bar (see 4.2.6 of DUS 1687 -1) or other acceptable fastening  
5.3.2.2  Elasticized waist band  
An elasticiz ed waist band sho uld be ruched with elastic webbing over a length of at least 80mm at each side 
seam, shall be lined with outer material and interlined with an appropriate fusible interlining (see 4.2.1 of DUS 
1687 -1), and shall fasten  at the front with two hooks  and bars on the extension  of the band  or with an 
acceptable  alternative. The nominal  width  of the elastic  webbing  shall be 35  mm.  
5.3.3  Fly 
The fly shall  be furnished  with an  appropriate  interlocking  slide fastener  (see 4.2.4  of DUS 1687 -1). It shall be  
secured  with a bar tack at the  fork end.  
5.3.4  Pockets  
Pocket  bags  shall be of pocketing  of an appropriate  type (see 4.2.2  of DUS 1687 -1), and shall be bar-tacked  
at each  end of the pocket  mouth. On shorts, the hip pocket  shall be of the patch  type and shall fasten  with a 
button or a press -stud.  
5.3.5  Bottoms  
All bottoms shall  be blind -felled.  
5.3.6  Buttonholes  
Each  buttonhole  shall be of such  length  as to acceptably  accommodate  the relevant  button , and shall 
preferably be  gimped  and barred or fish -tailed.   
viii © UNBS 2017  – All rights reserved  
 5.3.7  Seams  
Seams shall  have  a width of  at least 9 mm.  All exposed edges  shall be over  locked,  bound, or  turned  in and 
stitched  down.  The seat seam  shall be sewn  with stitch  type 401 (see US ISO 4915 ).Side  seams  and inside  
leg seams  shall be seam  type SSa-1 (see US ISO 4915 ) and pressed  open  or safety  stitched.  
5.3.8  Hems  
The finished  width  of trouser  hems shall  be at least  50 mm . 
5.3.9  Allowance  for alterations  
Except  in the case  of trousers  and shorts  with an elasticized  waist  band , an allowance  of at least  60 mm  shall 
be provided  at the waist  on the seat seam , waist band  and lining  (at least  30mm  on each side of the seat  
seam).  
6 Packing, care -labelling and marking  
The requirements  of clause 5 of DUS 1687 -1 shall apply.  
7 Inspection  
Inspection  shall be  done in accor dance  with clause 6 of  DUS 1687 -1  
© UNBS 2017  – All rights reserved  ix 
 Annex  A  
(normative)  
 
Notes to purchasers  
The following requirements shall be specified in tender invitations and in each order or contract:  
a) the type and colour(s) of the outer material (see 4.1);  
b) when relevant, that a fob  pocket is required  (see 5.1);  
c) the style (see 5.1); and  
d) the size designation(s)  required  (see 5.2). 
  
x © UNBS 2017  – All rights reserved  
 Certification marking  
Products that conform to Uganda standards may be marked with Uganda National Bureau of Standards 
(UNBS) Certification Mark shown in t he 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 Stand ards 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 goods 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 conformity to that standard.  
Further particulars of the terms and conditions of licensing may be obtained f rom the Director, Uganda 
National Bureau of Standards.  
 
 DUS 1687 -3: 2017    
 
ICS nn.nnn.nn  
Price based on nn pages  
© UNBS 2017 – All rights reserved