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CEN/TS 839:2008

Withdrawn

Withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

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Wood preservatives - Determination of the protective effectiveness against wood destroying basidiomycetes - Application by surface treatment

Withdrawn date

03-11-2023

Superseded by

EN 839:2014

Published date

03-05-2008

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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Test materials and apparatus
   5.1 Biological material
   5.2 Products and reagents
   5.3 Apparatus
6 Sampling of the preservative
7 Test specimens
   7.1 Species of wood
   7.2 Wood quality
   7.3 Provision of the test specimens
   7.4 Dimensions and density of test specimens
   7.5 Number and distribution of test specimens
8 Procedure
   8.1 Preparation of the untreated test specimens
   8.2 Preparation of the treated test specimens
   8.3 Exposure to fungi
   8.4 Culture conditions and duration of test
   8.5 Assessment of test
9 Statement of results
10 Test report
Annex A (informative) Test fungi
      A.1 General information on maintenance and acquisition
          of test strains
      A.2 Maintenance and treatment of test fungi
      A.3 Information regarding obligatory fungi
Annex B (normative) Methods of sterilisation
      B.1 Ionising radiation
      B.2 Epoxyethane-based sterilant
      B.3 Epoxypropane-based sterilant
      B.4 Steam
Annex C (informative) Examination of colonisation
Annex D (informative) Example of a test report
Annex E (informative) Environmental, health and safety
                      precautions within chemical/biological
                      laboratory
Bibliography

This European Standard specifies a method of test for the determination of the protective effectiveness of a wood preservative, applied to the surface of the wood, against wood destroying basidiomycetes cultured on an agar medium.The method is applicable to all products which are to be applied by superficial application processes. This includes :-organic solvent-based wood preservatives ; or-organic water-dispersible formulations, as supplied or as prepared in the laboratory by dilution of concentrates ; or-water-soluble products ; or-chemicals which are being studied as active ingredients for application by superficial processes.NOTEThis method may be used in conjunction with an ageing procedure, for example EN 73.

Committee
CEN/TC 38
DevelopmentNote
Supersedes ENV 839. (04/2008) Supersedes NBN ENV 839. (05/2011)
DocumentType
Technical Specification
PublisherName
Comite Europeen de Normalisation
Status
Withdrawn
SupersededBy
Supersedes

Standards Relationship
DD CEN/TS 839:2008 Identical
UNI CEN/TS 839 : 2008 Identical
DIN CEN/TS 839:2008-06 Identical
NEN NPR CEN/TS 839 : 2011 Identical
XP CEN/TS 839 : 2008 XP Identical
UNE-CEN/TS 839:2010 EX Identical
S.R. CEN TS 839:2008 Identical

I.S. EN 599-1:2009 DURABILITY OF WOOD AND WOOD-BASED PRODUCTS - EFFICACY OF PREVENTIVE WOOD PRESERVATIVES AS DETERMINED BY BIOLOGICAL TESTS - PART 1: SPECIFICATION ACCORDING TO USE CLASS
UNE-CEN/TS 15679:2009 EX Thermal Modified Timber - Definitions and characteristics
UNI EN 599-1 : 2014 DURABILITY OF WOOD AND WOOD-BASED PRODUCTS - EFFICACY OF PREVENTIVE WOOD PRESERVATIVES AS DETERMINED BY BIOLOGICAL TESTS - PART 1: SPECIFICATION ACCORDING TO USE CLASS
BS EN 599-1 : 2009 DURABILITY OF WOOD AND WOOD-BASED PRODUCTS - EFFICACY OF PREVENTIVE WOOD PRESERVATIVES AS DETERMINED BY BIOLOGICAL TESTS - PART 1: SPECIFICATION ACCORDING TO USE CLASS
UNE-EN 599-1:2010 Durability of wood and wood-based products - Efficacy of preventive wood preservatives as determined by biological tests - Part 1: Specification according to use class
EN 599-1:2009+A1:2013 Durability of wood and wood-based products - Efficacy of preventive wood preservatives as determined by biological tests - Part 1: Specification according to use class
DIN EN 599-1:2014-03 DURABILITY OF WOOD AND WOOD-BASED PRODUCTS - EFFICACY OF PREVENTIVE WOOD PRESERVATIVES AS DETERMINED BY BIOLOGICAL TESTS - PART 1: SPECIFICATION ACCORDING TO USE CLASS

EN 212:2003 Wood preservatives - General guidance on sampling and preparation for analysis of wood preservatives and treated timber
EN 1001-2:2005 Durability of wood and wood based products - Terminology - Part 2: Vocabulary
EN 73:2014 Wood preservatives - Accelerated ageing of treated wood prior to biological testing - Evaporative ageing procedure
ISO 3696:1987 Water for analytical laboratory use — Specification and test methods
EN ISO 3696:1995 Water for analytical laboratory use - Specification and test methods (ISO 3696:1987)
EN 1001-1:2005 Durability of wood and wood-based products - Terminology - Part 1: List of equivalent terms

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