DRAFT UGANDA STANDARD  
  DUS 1971  
First  Edition  
2018-mm-dd  
 
 
 Reference number 
DUS 1971: 2018 
© UNBS 2018  
  
Green surgical fabric for gowns and drapery — Speci fication  
 DUS 1971: 2018 
ii © UNBS 2018 – All rights reserved
 Compliance with this standard does not, of itself c onfer immunity from legal obligations 
A Uganda Standard does not purport to include all n ecessary 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 util ised in any 
form or by any means, electronic or mechanical, inc luding photocopying and microfilm, without prior wr itten 
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: +256 417 333 250/1/2 
Fax: +256 414 286 123 
E-mail: info@unbs.go.ug  
Web: www.unbs.go.ug  
 DUS 1971:2018 
© UNBS 2018 – All rights reserved  iii
 Foreword 
Uganda National Bureau of Standards (UNBS) is a par astatal 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 Stan dardisation (ISO) and  
(b) a contact point for the WHO/FAO Codex Alimentar ius 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 o ut through Technical Committees. A Technical 
Committee is established to deliberate on standards  in a given field or area and consists of key stake holders 
including government, academia, consumer groups, pr ivate sector and other interested parties.  
Draft Uganda Standards adopted by the Technical Com mittee are widely circulated to stakeholders and th e 
general public for comments. The committee reviews the comments before recommending the draft standard s 
for approval and declaration as Uganda Standards by  the National Standards Council. 
The committee responsible for this document is Tech nical Committee UNBS/TC 7, Textiles, Leather, Paper  
and related products, Subcommittee SC 1, Textile and related products . 
 DRAFT UGANDA STANDARD DUS 1971: 2018 
 
© UNBS 2018  – All rights reserved  1
 Green surgical fabric for gowns and drapery — Speci fication  
1 Scope 
This Draft Uganda Standard specifies requirements f or the performance, of green coloured surgical gown s  and 
drapes materials used in the operating theatre 
2 Normative references 
The following referenced documents referred to in t he text in such a way that some or all of their con tent 
constitutes requirements of this document. For date d references, only the edition cited applies. For u ndated 
references, the latest edition of the referenced do cument (including any amendments) applies. 
US 385:2001/ EAS 248, Methods for determination of threads per centimetre  in woven fabrics  
US ISO 3801, Textiles — Woven fabrics — Determination of mass pe r unit length and mass per unit area  
US ISO 22198, Textiles — Fabrics — Determination of width and len gth  
US 441-5:2002/ISO 7211-5, Textiles — Woven fabrics — Construction — Method of  analysis — Part 5: 
Determination of linear density of yarn removed fro m fabric  
US 441-3:2002/ISO 7211, Textiles — Woven fabrics — Construction — Method of  analysis — Part 3: 
Determination of crimp of yarn in fabric   
US ISO 105- X12, Textiles — Tests for colour fastness — Part X12: Co lour fastness to rubbing 
US ISO 105-B01, Textiles — Tests for colour fastness — Part B01: Co lour fastness to light: Daylight 
US ISO 105-C10, Textiles — Tests for colour fastness — Part C10: Co lour fastness to washing with soap or 
soap and soda 
US ISO 3071, Textiles — Determination of pH of aqueous extract  
US ISO 5077, Textiles — Determination of dimensional change in w ashing and drying  
3 Terms and definitions 
For the purposes of this document, the following te rms and definitions apply.  
ISO and IEC maintain terminological databases for u se in standardization at the following addresses:  
— ISO Online browsing platform: available at http://www.iso.org/obp 
3.1  
surgical textiles 
gowns, drapes, caps, shoe covers, and wrappers  
2 © UNBS 2018 – All rights reserved
 3.2  
surgical gowns 
protective garment worn by surgeons during operatio ns 
3.3  
surgical drapes 
A cloth arranged over a patient's body during an ex amination or treatment or during surgery, designed to  
provide a sterile field around the area 
3.4  
gown life 
the number of times a surgical gown can be washed, dried, sterilized, and used before it loses its bar rier  
qualities and must be discarded 
3.5  
drape life 
the number of times a drape fabric can be washed, d ried, sterilized, and used before it loses its barr ier  
qualities and must be discarded 
4 General requirements 
4.1  The fabric shall have maximum protection for patie nts, users and third parties with a high  
microbiological and hygiene standards to prevent th e risk of infection. 
4.2  The fabric shall have a good wearing comfort of cl othing to maintain the high performance of sweat  
absorbing and a high drapery quality 
5 Specific requirements 
The surgical gown and drape fabric shall be made to  conform to the specification given in tables 1 and  2 
below and figures 1 and 2 in annex A 
Table 1 — Specification for the green surgical fabric materia l 
S/N Characteristic/Test Requirement Test method 
01 Yarn count 
Warp 
Weft  
Nm 33.2/1 
Nm 37.4/1 US ISO 7211-5 
02 Weight 
Mass in gram per square meter, 
(Mass, g/m 2) min  
135 US ISO 3801 
03 Construction 
Ends per cm 
Picks per cm  
25.6 maximum 
19.5 maximum  
 
04 Contraction (%) 
Warp way 
Weft way  
4.7 ± 1 
14.1 ± 1  
 
05 Width (centimeters) 114 ± 1 US ISO 22198 
06 Weave 
plain  
1 x 1 US ISO 7211-3 DUS 1971: 2018 
© UNBS 2018 – All rights reserved  3
 Nm (Number Metric) = Length (m) 
                                       Mass (g) 
 
Table 2 — Other requirements 
Characteristics Requirements Test Method 
pH value 6 - 8 US ISO 3071 
Dimensional change on laundering 
(maximum) 5% US ISO 5077 
Colour fastness to 
Light 
washing  
6 – 7 
4 - 5 
  
US ISO 105-B01 
US ISO 105-C10 
Rubbing fastness 
Wet 
Dry  
4 – 5 
4 - 5 US ISO 105- X12 
Colour finish green  
 
6 Packaging 
The cloth shall be packed in water proof sheets. On ly rolls of the same composition, type, weave, widt h,  
colour finish and grade shall be packed together 
7 Labelling 
The following information shall appear in legible a nd indelible marking on a label securely attached t o  the 
inner end of each roll: 
a) manufacturer's name or trade mark or both; 
b) composition and type; 
c) colour and (where applicable) dye lot number; 
d) width; 
e) length of each roll, in meter; and 
f) production lot number or production batch number . 
8 Criteria of conformity 
The lot shall be deemed as conforming to the requir ements of this Uganda Standard when the following  
conditions are met: 
a) The average ends per centimeter of the fabric un der test are in accordance with the  requirement 
specified in table 1  
4 © UNBS 2018 – All rights reserved
 b) The average picks per centimeter of the fabric u nder test are in accordance with the  requirement 
specified in table 1. 
c) The weight of the fabric conforms to the require ment specified in table 1. DUS 1971: 2018 
© UNBS 2018 – All rights reserved  5
 Annex A 
(normative)  
 
Annex title 
A.1 Standard size for a green surgical gown made fr om high thread-count cotton and polyester/cotton  gown 
fabrics 
 
A.2 Surgical drapes, gowns and clean air suits, as medical devices for patients, clinical staff and  equipment. 
Used in the operating theatre 
Fig. 1 — Surgical gown   
6 © UNBS 2018 – All rights reserved
  
Fig.  2 Operating  Room  (OR)  DUS 1971: 2018 
© UNBS 2018 – All rights reserved  7
 Bibliography 
[1] TZS 1617:2014, Textiles — Specification for green surgical fabric for gowns and drapery  
 DUS 1971: 2018 
© UNBS 2018  – All rights reserved  9
 Certification marking 
Products that conform to Uganda standards may be ma rked with Uganda National Bureau of Standards 
(UNBS) Certification Mark shown in the 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 lic ensed under the certification mark scheme operated by 
the Uganda National Bureau of Standards and in conj unction with the relevant Uganda Standard. The 
presence of this mark on a product or in relation t o a product is an assurance that the goods comply w ith the 
requirements of that standard under a system of sup ervision, control and testing in accordance with th e 
certification mark scheme of the Uganda National Bu reau 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  
National Bureau of Standards.  
 
 DUS 1971: 2018 
 
ICS 11.040.30  
Price based on nn  pages 
© UNBS 2018– All rights reserved