DRAFT UGANDA STANDARD  
  DUS 1710  
First Edition  
2017 -mm-dd 
 
 
 Reference number  
DUS 1710 : 2017  
© UNBS 2017   
  
Disinfectants /sanitizers  based on glutaraldehyde for general 
use — Specification  
 DUS 1710 :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 contrac t. Users are 
responsible for its correct 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 mi crofilm, 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 4 333 2 50/1/2/3  
Fax: +256 41 4 286 123  
E-mail: info@unbs.go.ug  
Web: www.unbs.go.ug  
 DUS 1710 :2017  
© UNBS 2017  – All rights reserved  iii 
 Contents  Page 
Foreword  ................................ ................................ ................................ ................................ ............................  iv 
1 Scope  ................................ ................................ ................................ ................................ ......................  1 
2 Normative references  ................................ ................................ ................................ ............................  1 
3 Terms and definitions  ................................ ................................ ................................ ...........................  1 
4 Requirements  ................................ ................................ ................................ ................................ .........  2 
4.1 Type  ................................ ................................ ................................ ................................ ........................  2 
4.2 Raw materials  ................................ ................................ ................................ ................................ ........  2 
4.3 Bactericidal efficacy and suitability for purpose  ................................ ................................ ...............  2 
4.4 Stability after dilution of a type 1 disinfectant/sanitizer and after activation of a type 2 
disinfectant/sanitizer  ................................ ................................ ................................ .............................  2 
4.5 Corrosiveness  ................................ ................................ ................................ ................................ ........  2 
4.6 Water -insoluble matter content  ................................ ................................ ................................ ...........  2 
4.7 Storage stability  ................................ ................................ ................................ ................................ ..... 2 
5 Packaging and labelling ................................ ................................ ................................ ........................  3 
5.1 Packaging  ................................ ................................ ................................ ................................ ...............  3 
5.2 Labelling  ................................ ................................ ................................ ................................ .................  3 
Annex  A  (normative)   Sampling and compliance with this standard  ................................ ..........................  5 
A.1 Sampling  ................................ ................................ ................................ ................................ ................  5 
A.1.1  General  ................................ ................................ ................................ ................................ ...................  5 
A.1.2  Sample for inspection  ................................ ................................ ................................ ...........................  5 
A.1.3  Sample for testing  ................................ ................................ ................................ ................................ . 5 
A.2 Compliance with this standard  ................................ ................................ ................................ ............  6 
Annex  B  (normative)   Determination of corrosiveness  ................................ ................................ ................  7 
B.1 Test strips  ................................ ................................ ................................ ................................ ..............  7 
B.2 Procedure  ................................ ................................ ................................ ................................ ...............  7 
Annex  C  (normative)   Determination of water -insoluble matter  ................................ ................................ .. 8 
C 1 Procedure  ................................ ................................ ................................ ................................ ...............  8 
C.2 Calculation  ................................ ................................ ................................ ................................ .............  8 
Annex  D  (normative)   Determination of storage stabi lity ................................ ................................ .............  9 
Annex  E  (informative)   Quality verification of disinfectants/sanitizers for use on food contact 
surfaces  ................................ ................................ ................................ ................................ ................  10 
E.1 General  ................................ ................................ ................................ ................................ .................  10 
E.2 Quality system requirements  ................................ ................................ ................................ .............  10 
E.3 Assessment of quality system  ................................ ................................ ................................ ...........  11 
Bibliography  ................................ ................................ ................................ ................................ ......................  12 DUS 1710 :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 mand ated to co -
ordinate the elaboration 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 Organisation (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, consumer 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 bef ore 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 5, [Chemicals and 
environment] . 
 DRAFT UGANDA STANDARD  DUS 1710 : 2017  
 
© UNBS 2017 – All rights reserved  1 
 Disinfectants /sanitizers  based on glutaraldehyde for general 
use — Specification  
1 Scope  
This draft Uganda standard specifies the requirements  and methods of sampling and test for two types of 
disinfectants /sanitizers  based on glutaraldehyde and intended for general use on inanimat e surfaces.  
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 
references, the latest edition of the referenced document (including any amendments) applies.  
DUS 1692, Determination of bactericidal efficacy of disinfectants/sanitizers  
US EAS 384 , Disinfectants — Glossary of terms  
3 Terms and definitions  
For the purposes of this document, the terms and definitions given in US EAS 384 and the following apply.  
3.1  
batch  
collection of packages containing a disinfectant /sanitizer  of a single type and composition and of a single 
manufactured blend, or of a single delivery  
3.2  
defective  
a sample of disinfectant /sanitizer  that fails in one or more respects to comply with the relevant requirements of 
this standard  
3.3  
inanimate surface  
any surface other than live human or live animal tissue (for example skin)  
3.4  
lot 
that quantity  of disinfectant/sanitizer in sealed containers of the same size and bearing the same batch 
identification, from one manufacturer, submitted at any one time for inspection and testing  
ISO and IEC maintain terminological databases for use in standardization  at the following addresses:  
— ISO Online browsing platform: available at http://www.iso.org/obp   
2 © UNBS 2017  – All rights reserved  
 4 Requirements  
4.1 Type  
The disinfectant /sanitizer  shall be of one of the following types, as required : 
a) type 1:  a homogeneous liquid ; or 
b) type 2:  a homogeneous  liquid that has to be mixed with either a solid or a liquid activator before use 
as a disinfectant /sanitizer . 
4.2 Raw materials  
Raw materials used in the formulation of the disinfectant/sanitizer shall be such as to be suitable for the 
intended use. Produ cts shall not contain ingredients that are recognized as being potentially hazardous or 
toxic when the products are used in accordance with the manufacturer's recommendations, nor shall they 
form toxic or poten tially toxic reaction products.  
4.3 Bactericid al efficacy and suitability for purpose  
When the bactericidal efficacy of a disinfectant/sanitizer is tested in accord ance with DUS 1692 , at the 
prescrib ed concentration, the disinfectant/sanitizer  shall pass the test.  
NOTE  It is recommended that the user assess es the  efficacy  of the disinfectant/sanitizer  and suitability for purpose 
for the specific target surfaces  under local conditions.  
4.4 Stability after dilution of a type 1 disinfectant /sanitizer  and after activation of a type 2 
disinfectant /sanitizer  
After a type 1 disinfectant /sanitizer  has been diluted to the pre scribed concentration (see 6.2(e )) or after the 
two components of a type 2 disinfectant /sanitizer  have been mixed in accordance with the manufacturer’s 
instructions (s ee 6.2(d )) and the disi nfectant /sanitizer  has been stored in closed dark containers at 25 °C for 
the effective life a s stated on the label (see 6.2(i )), the resulting dilution shall still comp ly with the requirements 
of 4.3.1.  
4.5 Corrosiveness  
When the disinfectant /sanitizer  is tested in accordance with Annex B , it shall not cause more than slight 
dulling of the surface of the test strip and the test strip shall show no evidence of pitting, etching or 
discoloration. In addition, there shall be no change in the appearance of the disinfectant /sanitizer . 
4.6 Water -insoluble matter content  
The water -insoluble matter content of the disinfectant /sanitizer , determined in accordance with Annex C , shall, 
in the case of both a type 1 disinfectant /sanitizer  and a type 2 disinfectant /sanitiz er (after mixing of the two 
components), not exceed 1 g/L.  
4.7 Storage stability  
4.7.1  When  tested in accordance with D.1 (see Annex D ), a type 1 disinfectant /sanitizer  and the liquid 
component of a type 2 disinfectant /sanitizer  shall remain homogeneous an d free -flowing.  
4.7.2  When tested in accordance with D.2 (see Annex D ), the solid component of a type 2 
disinfectant /sanitizer  shall remain free -flowing and the type 2 disinfectant /sanitizer  that it activa tes shall still 
comply with 4.3 .1. DUS 1710 : 2017  
© UNBS 2017  – All rights reserved  3 
 4.8 Odour, taste  and colour  
4.8.1 Disinfectants/sanitizers shall not leave an objectionable odour on surfaces.  
4.8.2 A disinfectant/sanitizer intended for use on food contact surfaces (including drinking water contact 
surfaces) shall not contain perfumes. It shall not imp art any colour, taste, odour or flavour to food products or 
drinking water, when used in accordance with the manufacturer's recommendations.  
5 Packaging and labelling  
5.1 Packaging  
5.1.1 The container (including the closure) in which the disinfectant/sanit izer is packaged shall not interact 
chemically or physically with the disinfectant/sanitizer and shall be strong enough to protect the 
disinfectant/sanitizer adequately during normal handling, transportation and storage.  
5.1.2 The closure shall not be made  of cork or of any material that contains cork.  
5.1.3 Only packs of the same size and bearing the same batch identification shall be packaged together in 
a bulk pack.  
5.2 Labelling  
The following information shall appear prominently , legibly and durably on each  disinfectant/sanitizer  container 
or on a label secu rely attached to each  container:  
a) the manufacturer's name or trademark, or both;  
b) a statement that the product is a disinfectant /sanitizer  based on glutar aldehyde ; 
c) a statement of the nominal volume or m ass o f the contents in metric units;  
d) a description of how the components of a type 2 disinfectant /sanitizer  are to be mixed;  
e) general instructions for use of the product. T he instructions shall include the recommended 
concentration , dilution level  and the m inimum e xposure period for each purpose ; 
f) hazard and toxicity warnings, where relevant;  
g) a statement about the safety precautions to be taken when using the product  and the first aid steps to 
be taken in case o f direct ingestion  or skin contact ; 
h) the batch id entification number; or the production date of the batch or both;  
i) the expiry date  of the product, where relevant, and the effective life of the product;  
j) adequate draining, rinsing and/or drying requireme nts from surfaces after use;  
k) appropriate instructions  for the storage of the product, including a warning to store away from 
children;  
l) a warning to avoid contact with known incompatible substances, items and foodstuffs ; and  
m) when the prescribed end -use concentration  of the disinfectant /sanitizer  is above 0. 2% glutaraldehyde, 
warnings that:  
i. the disinfectant /sanitizer  can be detrimental to the skin, and that gloves should be used; and   
4 © UNBS 2017  – All rights reserved  
 ii. the disinfectant /sanitizer  should not be used on surfaces that will come into contact with food.  
NOTE 1  The product name should n ot be misleading to the consumer.  
NOTE 2  The manufacturer should substantiate any virucidal claim made about the product.  DUS 1710 : 2017  
© UNBS 2017  – All rights reserved  5 
 Annex  A  
(normative)  
 
Sampling and compliance with this standard  
A.1 Sampling  
A.1.1  General  
The following sampling procedure shall be  applied to determine whether a lot, submitted for inspection and 
testing, complies with the relevant requirements of this standard. The sample so drawn shall be deemed to 
represent the lot.  
A.1.2  Sample for inspection  
From the lot, draw at random the rele vant number of containers in accordance with table A.1.  
Table A.1 — Samples for inspection  
Lot size, containers  Sample size, containers  
5 — 20 
21 — 50 
51 – 90 
91 – 150 
151 – 280 
281 – 500 
501 – 1200  
1201 – 3200  
3201 - 10000  2 
3 
5 
8 
13 
20 
32 
50 
80 
 
A.1.3  Sample for testing  
A.1.3.1  After inspection of the containers drawn in accordance with A.1.2,  
a) take, at random, half the number of containers and use them for the storage stability test;  
b) take the remaining number of containers and from each of these contain ers take the smallest of the 
following:  
1) all the contents of the container, or  
2) 0.25 L in the case of liquids, or  
3) 0.25 kg in the case of solids.  
A.1.3.2  Combine these samples and mix them thoroughly to make up a composite sample for testing for 
compliance wi th the requirements of this standard.   
6 © UNBS 2017  – All rights reserved  
 A.2 Compliance with this standard  
Deem the lot to comply with the relevant requirements of this standard if:  
a) on inspection of the containers and on testing of the samples taken in accordance with A.1.2 and 
A.1.3, no de fective is found;  
b) the manufacturer satisfies the certification body as to the safety of all materials used in the 
manufacture of the product, and of the safety of the final product when used in accordance with the 
manufacturer's recommendations.  DUS 1710 : 2017  
© UNBS 2017  – All rights reserved  7 
 Annex  B  
(normative )  
 
Determination of corrosiveness  
B.1 Test strips  
Use two strips, each of size approximately 75 mm × 19 mm × 1.5 mm, of bright -finished uncoated aluminium 
Type EN AW 1050A . 
B.2 Procedure  
B.2.1  Degrease the aluminium test strip s by washing  in a mi xture of equal volumes of ethanol and 
acetone. Allow the strip s to air -dry, then heat them for 15 min in an ov en at 105 °C ± 5 °C and allow  them to 
cool in a desiccator.  
B.2.2  Prepare the test solution of the disinfectant /sanitizer  under test, at the highe st concentration 
recommended by the manufacturer, and transfer 250 mL of the freshly prepared solution to a suitably 
stoppered glass bottle.  
B.2.3  Completel y immerse the test strips (see B .1) in the solution in the glass bottle. Stopper the bottle 
and main tain the bottle at 25 °C ± 2 °C for 16 h.  
B.2.4  Remove the test strip s from th e test solution, rinse them  thoroughly with wat er and then acetone 
and allow them  to air -dry. Then heat the test strip s for 30 min in an o ven at 105 °C ± 5 °C and cool them again  
in a desiccator.  
B.2.5  Remove the test strip s from the desiccator  and examine them for compliance with 4.5.   
8 © UNBS 2017  – All rights reserved  
 Annex  C  
(normative)  
 
Determination of water -insoluble matter  
C 1 Procedure  
C.1.1 Pipette 5.0 mL of the undiluted disinfectant /sanitizer  into a be aker and add 250 mL of standard hard 
water . 
C.1.2 Heat  the solution  in a steam bath with frequent stirring until the sample is completely dispersed.  
C.1.3 Filter the solution immediately, under suction, through a tarred  1.6 μm glass fibre filter and ensure  
that the insoluble matter is quantitatively transferred to the filter.  
C.1.4 Wash the beaker and the residue five times with 20 mL vol umes of hot standard hard water.  Wash 
the filter with distilled water (to remove salts from the hard water).  
C.1.5 Allow the solution to drain completely and dry the residue at 105 °C ± 2 °C until constant mass is 
attained. Cool in a desiccator and weigh.  
C.2 Calculation  
Calculate the content of water -insoluble matter in the test solution, expressed in grams per litre, using  the 
formula:  
Vm
 
where  
m is the mass of the residue after it has been dried, in grams; and  
V is the volume of the test solution, in litres.  DUS 1710 : 2017  
© UNBS 2017  – All rights reserved  9 
 Annex  D  
(normative )  
 
Determination of s torage stability  
D.1  Store type 1 disinfectants /sanit izers  and the liquid component of type 2 disinfectants /sanitizers  in 
their original unopened containers at 5 °C ± 1 °C for 24 h. Inspect the co ntents of half of the packages  in the 
sample (see Annex A ) for compliance with the relevant requirements of 4.7 .1. 
D.2  Store the solid component of type 2 disinfectants /sanitizers  in its original unopened containers under 
ambient conditions for 6 months. The liquid component of type 2 disinfectants /sanitizers  does not have to be 
stored under these conditions. Inspec t the contents of half of the containers in the sample for compliance with 
4.7.2 and test the solid component , in conjunction with the type 2 disinfectant /sanitizers  that it activates , for 
compliance with 4.3 .1.  
10 © UNBS 2017  – All rights reserved  
 Annex  E  
(informative)  
 
Quality verification of disinfectants/sanitizers for use on food contact 
surfaces  
E.1 General  
When a purchaser requires ongoing verification of the quality of disinfectants/sanitizers for use on food 
contact surfaces, it is s uggested that, instead of concentrating solely on evaluation of the final product, 
attention should also be directed to the manufacturer's quality system. In this connection it should be noted 
that US ISO 9001 covers the provisions of an integrated quality  system.  
E.2 Quality system requirements  
E.2.1 When assessed in accordance with E .3, the quality system of a manufacturer of 
disinfect ants/sanitizers  for use on food contact surfaces  shall com ply with the requirements of E.2.2 to E.2.12. 
NOTE  Some or all o f these requirements might be relaxed by the authority administering this standard if an 
appropriate source verification and inspection is being used by the manufacturer.  
E.2.2 Responsibility for the quality system shall be delegated to an officer who has sufficient authority, 
and is sufficiently qualified, to ensure compliance with the relevant requirements of this standard.  
E.2.3 The responsibilities of all persons who have direct or indirect responsibility for quality shall be so 
defined and documented a s to ensure that there is no overlap of functions or responsibilities.  
E.2.4 Quality system documentation, and the amendment and revision of such documentation (including 
formulations, test methods and product standards), shall be written and authorized on ly by duly designated 
officers who have written authority to perform these functions.  
E.2.5 A documented quality system shall exist and be implemented to ensure that only 
disinfect ants/sanitizers  that comply with the relevant requirements of this standard are delivered for use on 
food contact surfaces . Such documentation shall include, but not be limited to:  
a) procedures for the manufacture of the respective products,  
b) standards for all the raw materials used,  
c) standards for the finished products,  
d) standards for  the testing of raw materials, packaging, work in progress and finished products,  
e) standards for packaging, labelling and storage of the finished products, and  
f) systems to ensure that personnel involved in activities that affect the manufacture and quality o f the 
disinfectants/sanitizers have available only current and suitably authorized documented procedures 
and standards, and that such documentation can be recalled and updated when necessary.  DUS 1710 : 2017  
© UNBS 2017  – All rights reserved  11 
 E.2.6 Systems shall exist and be implemented to ensure that only  raw materials and packaging that 
comply with the relevant requirements of this standard are used in the manufacture of disinfecta nts/sanitizers 
meant for food contact surfaces.  
E.2.7 The manufacturer shall implement a system of product identification to e nsure that a product in its 
original packaging can be traced back to the relevant records of manufacture and sources of raw materials.  
E.2.8 Products shall be manufactured in appropriate premises, using appropriate equipment and in 
accordance with appropri ate documented manufact uring procedures (see E .2.4), by appropriately trained 
employees. Process control procedures shall be such as to ensure a consistent quality of the end product.  
E.2.9 The formul ations of the disinfectants/sanitizers  shall be submitte d for approval to a certification 
body, together with sufficient safety data that cover both raw materials and the finished product, to satisfy the 
certification body with respect to the safety of the product when used in accordance with the manufacturer’s  
recommendations. Material safety data sheets shall form an integral part of such safety data. Formulations, 
once approved, shall not be altered without the approval of the certification body. The certification body shall 
impose such reappraisal requiremen ts as it considers necessary to ensure the continued safety of the 
product.  
E.2.10  Testing of raw materials, packaging, work in progress and finished product shall be carried out by 
appropriately qualified and trained personnel who have access to suitable equipment and facilities and in 
accordance with documented procedures. Test records shall be maintained and appropriate samples (see 
annex A) shall be retained for a period that is sufficient to comply with the requirements of the customer and 
the certific ation body or the regulatory or inspection authority.  
NOTE  A sample retention time of at least six months and a record retention time of at least two years are 
recommended.  
E.2.11  Test equipment shall be calib rated periodically to ensure  reliability and ac curacy. Records of 
calibration shall be kept. The period between successive calibrations shall not exceed one year.  
E.2.12  Systems shall exist and be implemented to ensure that only disinfect ants/sanitizers  that comply 
with the relevant quality standards a re dispatched to the customer.  
E.3 Assessment of quality system  
NOTE  See note to E .2.1 
The quality system shall be assessed by auditors who are trained, qualified and experienced in the evaluation 
of quality systems in accordance with recognized quality sy stem standards such as US ISO 9001. Audits shall 
be carried out in accordance with the generally accepted criteria for assessing compliance with such 
standards.   
12 © UNBS 2017  – All rights reserved  
 Bibliography  
[1] SANS 1615 , Disinfectants based on glutaraldehyde for general use  
[2] SANS 1853 , Disinfectants and detergent -disinfectants for use in the food industry  
[3] US ISO 9001 , Quality management systems — Requirements  
 DUS 1710 : 2017  
© UNBS 2017 – All rights reserved  13 
 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 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 su pervision, 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 conditio ns of licensing may be obtained from the Director, Uganda 
National Bureau of Standards.  
 
 DUS 1710 : 2017    
 
ICS 71.100.35  
Price based on nn pages  
© UNBS 2017 – All rights reserved