DRAFT UGANDA STANDARD  
  DUS  2112 -2 
First  Edition  
2018 -10-30 
 
 
 Reference number  
DUS 2112 -2:2018 
© UNBS 2018   
  
Water Soluble Type Wood Preservatives -Part 2: Copper -
Chrome -Boron (CCB) Wood Preservative  
 DUS 2112 -2: 2018  
ii © UNBS 2018  – 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  
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 Contents  Page 
Foreword  ................................ ................................ ................................ ................................ ............................  iv 
1 scope  ................................ ................................ ................................ ................................ ................................  1 
2 Normative References ................................ ................................ ................................ ...........................  1 
3. Composition and Properties of Preservative  ................................ ................................ ..............................  1 
4. Sampling  ................................ ................................ ................................ ................................ .........................  1 
5. Testing  ................................ ................................ ................................ ................................ .............................  2 
6. Marking  ................................ ................................ ................................ ................................ ............................  2 
Bibliography  ................................ ................................ ................................ ................................ ........................  3 
 DUS 2112 -2: 2018  
iv © UNBS 2018  – 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 Ugand a, as amended .  UNBS is mandated 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 En quiry 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 commit tee 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 12.on furniture   DRAFT UGANDA STANDARD  DUS 2112 -2:2018  
 
© UNBS  2018 – All rights reserved  1 
 Water  Soluble Type Wood P reservatives -Part 2: Copper -Chrome -Boron 
(CCB ) Wood P reservative  
1 scope  
This standard covers  the requirements for copper -chrome -boron (CCB) - a water -soluble (fixed) type wood 
preservative specified for  treatment of timber and other lignocellul osic materials as given in  DUS 2099 .This 
standard covers the composition of the preservative, quality  of chemicals forming the composition, and 
sampling procedure for  analysis . 
2 Normative R eferences   
DUS 2112 -1:2018, Water soluble type wood preservative –Part 1; Acid -copper -chrome (ACC) wood 
preservative  
3. Composition  and Properties of P reservative  
3.1 Copper -chrome -boron preservative formulation shall consist of the  following active ingredients in nominal 
proportions by weight as shown  below : 
 
3.2 The pr eservative may be in a dry solid form, semi -liquid paste or  solution.  
 
3.3 In case of dry solid, the preservatives shall contain not less than  95 percent of -the acti ve ingredients 
mentioned under 3 .1. 
 
3.4. In all cases, the percentage of active ingredient s, and amount  of moisture shall be labelled on the 
container as well as descriptive  literature of the product . 
 
3.5 Each of the chemicals used for such formulation shall be not less than  of 95 percent purity.  
4. Sampling  
 
4.1 Samples shall be taken from re quisite number of drums out of the  supply made at one particular time 
according to sampling procedure laid  down    
 
4.2 In case of solution or paste, the same shall be thoroughly mixed with  a rod and at least 1 kg sample shall 
be taken for chemical analysis  from each drum.  
 
4.3 In case of dry powder form, a true representative sample of the  preservative not less than 10 percent of 
the contents shall be taken for  analysis . 
 
4.4 At least 1 kg of the preservative shall be dissolved to obtain 15  percent solution  of the preservative . 
4.5 A small amount of the 15.percent solution may be drawn and diluted  exactly to 5 percent for chemical 
analysis .  
2 © UNBS 2018  – All rights reserved  
  
5. Testing  
 The chemical analysis of the solution with respect to its various  ingredients shall be car ried out as per 
relevant standard The proportion of all chemicals shall comply with 3.1 and 3.1.1.  
6. Marking  
6.1 Each container shall be legibly marked with the following information:  
 
a) Manu facturers’ name, or trade -mark,  
 
b) Date of manufacture; and  expiry date  
 
c) Pe rcentage of dry active ingredients.  
d) Instruction for use   
  DUS 2112 -2:2018  
© UNBS yyyy – All rights reserved  3 
 Bibliography  
[1] IS 10013 -2: 1961   specification for  water soluble type wood  preservatives (CCB)  
 
  
  US nnnn -n: yyyy  
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 Certification marking  
Products that conform to Uganda standards may be marked with Uganda N ational 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 certifica tion 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 tha t 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 partic ulars of the terms and conditions of licensing may be obtained from the Director, Uganda 
National Bureau of Standards.  
 
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