DRAFT UGANDA STANDARD  
  DUS 914-1 
Second  Edition  
2019-mm-dd 
 
 Reference number  
DUS 914-1: 2019 
© UNBS 2019  
  
Bed blankets — Part 1: Blankets made from suitable flame 
resistant fabrics — Specification  
 DUS 914-1: 2019 
ii © UNBS 2019 – All right s 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 19  
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 photocop ying 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 7 333 2 50 
Fax: + 256 41 4 286 123  
E-mail: unbs@infocom.co.ug  
Web: www.unbs.go.ug  DUS 914-1:2019 
© UNBS 2019 – All rights reserved  iii 
 Contents  Page 
Foreword  ................................ ................................ ................................ ................................ ............................  iv 
1 Scope  ................................ ................................ ................................ ................................ ......................  1 
2 Normative references  ................................ ................................ ................................ ............................  1 
3 Terms and definitions  ................................ ................................ ................................ ...........................  2 
4 Requirements  ................................ ................................ ................................ ................................ .........  2 
4.1 General  ................................ ................................ ................................ ................................ ...................  2 
4.2 Materials  ................................ ................................ ................................ ................................ .................  2 
4.3 Specific  requirements  ................................ ................................ ................................ ...........................  3 
5 Tests  ................................ ................................ ................................ ................................ .......................  4 
5.4 Number  of test ................................ ................................ ................................ ................................ ....... 4 
5.5 Criteria  for conformity  of bulk sample  ................................ ................................ ................................  4 
6 Packaging  ................................ ................................ ................................ ................................ ...............  4 
7 Marking  and labelling  ................................ ................................ ................................ ............................  4 
7.1 Marking  ................................ ................................ ................................ ................................ ...................  4 
7.2 Individual labelling  ................................ ................................ ................................ ................................  5 
Bibliography  ................................ ................................ ................................ ................................ ........................  6 
 DUS 914-1: 2019 
iv © UNBS 2019 – All right s reserved  
 Foreword  
Uganda National Bureau of Standards (UNBS) is a par astatal under the Ministry of Tourism, Trade and 
Industry established under Cap 327 , of the Laws of Uganda.  UNBS is mandated to co -ordinate the 
elaboration of standards and is  
(a) a member of International Organisation for Standardisation (ISO) and  
(b) a contac t point for the WHO/FAO Codex Alimentarius Commission on Food Standards, and  
(c) the National Enquiry Point on TBT/SPS Agreements of the World Trade Organisation (WTO).  
The work of preparing Uganda Standards is carried out through Technical Committees. A Tech nical 
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 Uganda Standards adopted by the Technical Commit tee 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 resp onsible for this document is Technical Committee UNBS/TC 7, Textiles, Leather, Paper 
and related products , Subcommittee SC 1, Textiles and related products . 
This second edition cancels and replaces the first edition (US 914 -1:2011), which has been technica lly revised.  
 DRAFT UGANDA STANDARD  DUS 914-1: 2019 
 
© UNBS 2019 – All rights reserved  1 
 Bed blankets — Part 1: Blankets made from suitable flame 
resistant fabrics — Specification  
1 Scope  
This part of DUS 914 specifies the requirements,  method of sampling  and test for a flame  resistant blanket  
composed of suitable flame  resistan t fabrics  
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 edition cited applies. For undated 
referen ces, the latest edition of the referenced document (including any amendments) applies.  
ISO 4920,  Textiles — Determination of resistance to surface wetting (spray test) of fabrics  
ISO 5659 -2, Plastics  — Smoke generation — Part 2: Determination of optical den sity by a  single chamber test  
ISO 12952 -4, Textiles — Burning behaviour of bedding items —Part 4: Specific test methods  for the ignitability  
by a small open flame  
ISO 13937 -1, Textiles  — Tear properties  of fabrics  — Part 1: Determination  of tear force  of fabrics  using  
ballistic pendulum  method  (Elmendorf)  
ISO 14419, Textiles – Oil repellency – Hydrocarbon  
US EAS 248, Textiles — Methods for determination of threads  per centimetre in woven fabrics  
US EAS 254, Textiles  — Tear properties of  fabrics — Determinat ion of  tear resistance  by falling  pendulum  
(Elmendorf) apparatus  
US ISO 105 -B01, Textiles — Tests for colour fastness — Part B01: Colour fastness to light: Daylight  
US ISO 105 -C10, Textiles — Tests for colour fastness — Part C10: Colour fastness to washing  with soap or 
soap and soda  
US ISO 105 -X12, Textiles — Tests for colour fastness — Part X12: Colour fastness to rubbing  
US ISO 3801, Textiles — Woven fabrics — Determination of mass per unit length and mass per unit area  
ISO 4589, Plastics — Determination of burning behaviour by oxygen index (all parts)  
US ISO 5077 , Textiles — Determination of dimensional change in washing and drying  
US ISO 13934 -1, Textiles — Tensile properties of fabrics — Part 1: Determination of maximum force and 
elongation at maximum f orce using the strip method   
2 © UNBS 2019 – All rights reserved  
 3 Terms and definitions  
For the purposes of this document, the following terms and definitions apply.  
3.1 
lot 
total number of blankets included in any part delivery of the bulk  
3.2 
bulk 
total number of blankets included in the contract of supply  
3.3 
limiting  oxygen index (LOI)  
minimum concentration of oxygen required in the air mixture just to support the downward burning (like a 
candle) of a vertically placed strip specimen. High oxygen concentration requirement indicate better  flame 
retardancy of the specimen. The oxygen concentration is reported as volume percent.  
3.4 
AATCC  
American  Association of Textile Chemists and Colorists  
4 Requirements  
4.1 General  
4.1.1 Blankets  shall present  a neat,  well finished  appearance  and shall be free of all imperfections  and/or  
defects which  might affect appearance, normal life, or serviceability.  
4.1.2 Blankets shall be "first" commercial grade, clean, and free from tears or holes.  
4.1.3 Blankets  shall be machine  washable,  laundered  by the same  procedure  as for sheets  and capable  of 
being tumble dried without  damage.  
4.1.4 Blankets shall be moth and mildew proof.  
4.1.5 Blankets shall have permanent flame resistance.  
4.1.6 When  placed  on a flat surface,  blankets  shall be flat on all sides,  and the ends  shall be straight  and 
parallel.  
4.1.7 There  shall be no broken or loose yarn, stitches, or seams. Threads shall be trimmed.  
4.2 Materials  
4.2.1  The fabric shall be manufactured out of inherent permanent flame retardant fibre whose flame 
retardancy d oes not diminish either with ageing (ultra violet light degradation) or repeated washing. At the 
same time it is preferable to have fibre of substances which do not nourish bacteria. The linen item should 
have good texture and should give good feel . 
4.2.2 The base fabric shall be of woven design, free from yarn defects and stains and should lay flat when it 
is spread. There should not be any chemical coating over the surface to achieve flame retardancy. It shall be 
thoroughly de -sized, scoured and heat set so as to maintain dimensional stability and have no shrinkage. The 
construction features like denier, number of ends and picks, shall be adjusted in such a way that the fabric 
retains the required level of air permeability. The fabric shall be sufficiently  pliable and free from tackiness. 
The threads used shall be flame resistant preferably made from same material  DUS 914-1: 2019 
© UNBS 2019 – All rights reserved  3 
 4.3 Specific  requirements  
The blanket shall comply with the requirements given in the Table  1. 
Table 1 — Requirements  for blankets  
S/No  Character istics  Value  Test methods  
1 Weight, g/m2 450 ± 20  US ISO 3801  
US EAS 248  
2 Weave type  Woven  Visual  
3 Breaking strength, Newton   
1250   
US ISO 13934 -1 Warp  
Weft 250 Strip size:(5 × 20) cm  
4 Tear strength, Newton   
75  
ISO 13937 -1 Warp  
Weft 45 US EAS 254  
5 Resistance to spread of flame – minimum  Class – B ISO 12952 -4 
6 Limiting Oxygen Index (LOI)  Minimum - 28 ISO 4589  
 
7 Deterioration of visibility due to smoke  – 
minimum  Class – B ISO 5659 -2 
8 Dimensional stability  
Warp, %  max 
Weft, %  max  
2.5 
2.5  
US ISO 5077  
9 Colour fastness to daylight (accelerated fading) , 
min 4 US ISO 105 -B01 
10 Colour fastness to washing , min  4 US ISO 105 -C10 
11 Colour fastness to rubbing (Wet & Dry)  4 US ISO 105 -X12 
12 Water repellency test – spray test , min  80 ISO 4920  
13 Oil repellency test – Hydrocarbon resistance 
test, min  6 ISO 14419  
14 Shrinkage in Laundering  Not exceed ± 5%,  US ISO 5077  
NOTE 1 : For retention of fire retardant, Water repellency, Oil repellency and anti -bacterial property, the minimum 
numb er of washing cycles in home laundering without any reactive chemicals lick bleach etc. to be specified by 
manufacture.  
NOTE 2 : Details not specified herein shall be in accordance with standard commercial practices for products of 
this type.  
  
4 © UNBS 2019 – All rights reserved  
 5 Tests  
5.1 Test pieces shall be cut from the samples in the required number and in the appropriate manner as 
specified in the individual methods of test. Samples for tear strength and resistance to spread of flame as 
stipulated in Table 1 shall be cut as per test met hods prescribed.  
5.2 The specimen  for resistance  to spread  of flame,  Anti Bacterial  property, Germ  count  test, water  
repellency - spray  test & Oil repellency - Hydrocarbon  resistance  test including  greasy  food shall be subjected  
to 10 launderings cycles on  a minimum of three  samples.  
5.4 Number  of test 
5.4.1  All the tests  given  in Table  1 shall be carried  out on each  lot except  Toxicity  and Anti Bacterial  test. 
The test for Toxicity  index  and Anti Bacterial  test shall be done  once  in six months.  Ten blanket s shall be 
randomly  selected  from a lot for visual  examination  and if found  satisfactory,  further  tests  as specified  shall be 
carried out.  
5.4.2  Out of ten numbers randomly selected from a lot, one shall be selected for the test specimens 
necessary for the  various tests specified in the standard. All the samples shall be kept out of contact from one 
another or any other material that may cause contamination.  
5.5 Criteria  for conformity  of bulk sample  
The lot shall be declared  as conforming  to specification  for various  characteristics  referred  in Table  1, if for 
each  of the characteristics  the mean  values  of the test results  on all the individual  specimens  are found  to be 
within  limits  of the specification.  Failing  of a sample  on account  of any of the charact eristics  shall mean  
rejection of the full  lot. 
6 Packaging  
6.1 Each lot shall  contain  specified number of blankets of one colo ur and  one size only.  
6.2 Each  blanket  shall be folded  in accordance  with standard  commercial  practice  and inserted  in a 
suitable packaging material  so as to  ensure  safe transportation.  
6.3 The blankets  shall be packed  in neat and dry conditions.  Each  pack  (lot) shall be marked  at the outer  
end (within 5 cm) as given  in Clause 7.  
7 Marking  and labelling  
7.1 Marking  
The following  information  shall appear  in legible  and indelible  marking  on each  lot marked  in English  and any 
other additional language for example, Kiswahili, may be  agreed upon as the contract or order may direct.  
a) name of contents;  
b) quantity;  
c) name and address of the  manufa cturer;  
d) colour;  
e) lot number or batch number;  and DUS 914-1: 2019 
© UNBS 2019 – All rights reserved  5 
 f) care label.  
7.2 Individual l abelling  
Each  blanket  shall have  a permanent  label  securely  attached  at one end. The label  shall be commercial  type  
and shall have  the name  of the manufacturer  or trademark.  The marking  shall be well defined,  clearly  legible  
and show  good  fastness  to laundering.  The blanket  shall also be labeled  for composition  or fiber content  and 
care label.  
  
6 © UNBS 2019 – All rights reserved  
 Bibliography  
US 914 -1:2011, Bed blankets  — Part 1: Blankets  made from suitable flame resi stant fabrics — Specification 
(First Edition).  
 DUS 914-1: 2019 
© UNBS 2019 – All rights reserved  7 
 Certification marking  
Products that conform to Uganda standards may be marked 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 licensed under the certification mark scheme operated by 
the Uganda National Bureau of Standards and in conjunction with the relevant Uganda Sta ndard. 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 th e 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 from the Director, Uganda 
National Bureau of Standard s.  
 
 DUS 914-1: 2019   
 
ICS nn.nnn.nn  
Price based on nn pages  
© UNBS 2019 – All rights rese rved