BS EN 113-3:2023 – TC

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Tracked Changes. Durability of wood and wood-based products. Test method against wood destroying basidiomycetes – Assessment of durability of wood-based panels

Published By	Publication Date	Number of Pages
BSI	2023	94

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Categories: 79.060.01 - Wood-based panels in general, BSI

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Description

This document describes a method for assessing the durability of wood-based panels or analogue wood products to attack by wood-destroying basidiomycete fungi growing in pure culture. The test method described in this document is intended to complement EN 113-2 with focus on specific aspects of wood-based panels or analogue wood products. This document is not intended to determine the effectiveness of wood preservatives used to prevent decay, which is covered by EN 113-1. NOTE This method can be used in conjunction with an appropriate ageing procedure, for example EN 73 or EN 84. The method is applicable to uncoated, rigid wood-based panel products. It is applicable to the determination of the decay resistance of wood-based panel products: – made from naturally durable materials; – made from materials treated with preservatives prior to manufacture; – treated with a preservative which is introduced during manufacture, for example as an additive to the adhesive; – specific treatments to increase durability of wood-based panels, e.g. wood modification. Annex A (informative) contains a guidance on sampling. Annex B (normative) contains some methods of sterilization. Annex C (informative) contains information on the culture vessels. Annex D (informative) contains an example of a test report. Annex E (informative) contains information on the test fungi. Annex F (informative) contains the assessment of the results. Annex G (informative) contains extra info on moisture dynamics, coatings, composites and impact of dimensions.

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PDF Pages	PDF Title
1	30470056
55	A-30433970
56	undefined
64	1 Scope 2 Normative references
65	3 Terms and definitions 4 Principle 5 Test material and apparatus 5.1 Biological material 5.1.1 Test fungi 5.1.1.1 General 5.1.1.2 Obligatory test fungi for all types of panel products 5.1.1.3 Species to be used compulsorily on the nature of the test product
66	5.1.1.4 Additional obligatory test fungus for modified wood 5.1.1.5 Optional test fungi 5.1.1.6 Maintenance of fungal strains 5.1.2 Solid wood stock 5.1.2.1 Wood species 5.1.2.2 Quality of the wood
67	5.1.2.3 Virulence control specimens 5.2 Products and reagents 5.2.1 Culture medium 5.2.2 Additive for white rot fungi
68	5.3 Apparatus 5.3.1 Conditioning supports 5.3.2 Conditioning room 5.3.3 Culture chamber 5.3.4 Culture vessels 5.3.5 Ventilated drying oven 5.3.6 Desiccators 5.3.7 Test specimens supports 5.3.8 Safety equipment and protective clothing 5.3.9 Equipment for steam sterilization or access to a radiation source 5.3.10 Ordinary laboratory equipment
69	6 Test specimens 6.1 General 6.2 Test specimen preparation 7 Numbers of test specimens 7.1 Test product specimens 7.1.1 Test specimens 7.1.2 Moisture content check specimens 7.1.3 Wetting check specimens 7.2 Virulence control specimens
70	8 Procedure 8.1 Pre-conditioning 8.2 Initial dry mass 8.2.1 Test product specimens
71	8.2.2 Virulence control specimens 8.3 Sterilization of test specimens 8.4 Preparation of the culture vessels 8.5 Inoculation 8.6 Exposure of test specimens 8.6.1 Preparation of additive for white rot fungi
72	8.6.2 Test specimens 8.6.3 Virulence control specimens 8.6.4 Wetting check specimens 8.7 Culture conditions and duration of the test 8.8 Assessment of the test 8.8.1 Examination of the test specimens 8.8.2 Final dry mass
73	8.8.3 Validity of results 9 Validity of the test 10 Assessment of results
74	11 Test report
76	Annex A (informative)Guidance on sampling
77	Annex B (normative)Methods of sterilization B.1 Ionizing radiation B.2 Steam
78	Annex C (informative)Culture vessels
81	Annex D (informative)Example of a test report
84	Annex E (informative)Test fungi E.1 General information on maintaining and acquisition of test strains E.2 Maintenance and treatment of test fungi
85	E.3 Information regarding obligatory test fungi E.3.1 Coniophora puteana (Schumacher ex Fries) Karsten [Synonym: Coniophora cerebella (Persoon) Duby] E.3.2 Pleurotus ostreatus (Jacquin ex Fries) Kummer E.3.3 Gloeophyllum trabeum (Persoon ex Fries) Murrill [Synonyms: Lenzites trabea (Persoon ex Fries) Fries – Trametes trabea (Persoon ex Fries) Bresadola] E.3.4 Trametes versicolor (Linnaeus ex Fries) Pile [Synonyms: Polyporus versicolor Linnaeus ex Fries – Polystictus versicolor (Linnaeus) Saccardo – Coriolus versicolor (Linnaeus) Quelet]
86	E.3.5 Rhodonia placenta (Fr.) Niemelä, K.H. Larss. and Schigel [Synonym: Poria placenta (Fries) Cooke sensu J. Eriksson – Poria monticola Murrill] E.4 Information regarding optional test fungi
89	Annex F (informative)Assessment of results
91	Annex G (informative)Moisture dynamics, coatings, composites and impact of dimensions G.1 General information on moisture dynamics G.2 Coated wood-based panels G.3 Wood polymer composites and natural fibre composites
92	G.4 Impact of dimensions

Additional information

Status	Definitive
Pages	94
Publication Date	2023-02-20
ISBN	978 0 539 26061 8
Standard Number	BS EN 113-3:2023 – TC
Title	Tracked Changes. Durability of wood and wood-based products. Test method against wood destroying basidiomycetes – Assessment of durability of wood-based panels
Descriptors	Panels, Basidiomycetes, Testing methods, Products, Wood products, Wood, Durability
Publisher	BSI
Committee	B/515
ICS Codes	79.060.01 - Wood-based panels in general

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BS EN 113-3:2023 – TC

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