1、BRITISH STANDARDBS EN 351-1:2007Durability of wood and wood-based products Preservative-treated solid wood Part 1: Classification of preservative penetration and retentionICS 71.100.50; 79.040g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g4
2、0g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 351-1:2007This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 January 2008 BSI 2008ISBN 978 0 580 54165 0National forewordThis British Standard i
3、s the UK implementation of EN 351-1:2007. It supersedes BS EN 351-1:1996 which is withdrawn.The UK participation in its preparation was entrusted by Technical Committee B/515, Wood preservation, to Subcommittee B/515/2, Durability, treatment, performance and environment issues.A list of organization
4、s represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.Amen
5、dments/corrigenda issued since publicationDate CommentsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 351-1July 2007ICS 79.040; 71.100.50 Supersedes EN 351-1:1995 English VersionDurability of wood and wood-based products - Preservative-treated solid wood - Part 1: Classification of preservativepe
6、netration and retentionDurabilit du bois et des produits base de bois - Boismassif trait avec produit de prservation - Partie 1 :Classification des pntrations et rtentions des produitsde prservationDauerhaftigkeit von Holz und Holzprodukten - MitHolzschutzmitteln behandeltes Vollholz - Teil 1:Klassi
7、fizierung der Schutzmitteleindringung und -aufnahmeThis European Standard was approved by CEN on 21 June 2007.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any altera
8、tion. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by transla
9、tionunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Gre
10、ece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement C
11、entre: rue de Stassart, 36 B-1050 Brussels 2007 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 351-1:2007: EEN 351-1:2007 (E) 2 Contents Page Foreword3 Introduction .4 1 Scope 5 2 Normative references 5 3 Terms and definitions .6 4
12、Raw materials.8 5 Preservative-treated solid wood 9 6 Treatment specifications 12 7 Factory production control.13 8 Marking .13 Annex A (informative) Decision process for defining preservative treatment requirements15 Annex B (informative) Marking system.17 Annex C (informative) Penetration classes
13、according to EN 351-1:1995 18 Bibliography 21 EN 351-1:2007 (E) 3 Foreword This document (EN 351-1:2007) has been prepared by Technical Committee CEN/TC 38 “Durability of wood and wood-based products”, the secretariat of which is held by AFNOR. This European Standard shall be given the status of a n
14、ational standard, either by publication of an identical text or by endorsement, at the latest by January 2008, and conflicting national standards shall be withdrawn at the latest by January 2008. This document supersedes EN 351-1:1995. Significant technical differences between this edition and EN 35
15、1-1:1995 are as follows: a) introduction of new penetration classes, see Table 1; b) modification of Figure A.1 to delete the suggested preservative treatments where no other guidance is available. This document consists of two parts. Part 1 is concerned with defining the penetration requirements an
16、d gives guidance on the retention requirements for preservatives in preservative-treated solid wood and Part 2 gives guidance on the general procedures to be followed in the sampling for analysis of preservative-treated solid wood. According to the CEN/CENELEC Internal Regulations, the national stan
17、dards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, P
18、ortugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 351-1:2007 (E) 4 Introduction This part of EN 351 allows a specifier or user to choose a preservative treatment for a solid wood product taking into a account its intended service or the needs of different region
19、al or traditional practices throughout Europe and the use class conditions to which the solid wood products will be exposed (see EN 335-1). In addition, it provides the basis on which treatments for timber in European product standards are to be defined. No attempt has been made to quantify the work
20、ing life that could be expected from a particular preservative treatment as this will depend on the geographical location and the associated climate of the service environment. The performance of treated wood cannot be assessed directly, for example by field tests or bioassay, as no agreed documents
21、 specifically for this purpose exist. As a consequence, the penetration and retention of a preservative in treated wood are used to define quality of treatment. The penetration and retention values are measured by analysing the active ingredient(s) in the treated wood. Preservative treatment for cer
22、tain wood species used in the different use classes might be unnecessary owing to their natural durability (see EN 350-2 and EN 460). If appropriate treatment is necessary, the specification for appropriate preservatives is defined in EN 599-1. EN 351-1:2007 (E) 5 1 Scope This part of EN 351 establi
23、shes classification for preservative-treated wood in terms of preservative penetration and gives guidance on a classification of retention. These should be used as a basis for specifying preservative treatments for particular products. This part of EN 351 provides terminology to be used by the speci
24、fier when preparing a preservative treatment specification or product standard. It is not a treatment specification in itself. This part of EN 351 is applicable to the production of preservative-treated solid wood, including glued laminated timber, suitable for use in those service conditions define
25、d by the use classes in EN 335-1. It does not apply to any subsequent examination of treated wood in service. This part of EN 351 is applicable to the protection of wood against attack by wood-destroying and wood-disfiguring fungi, insects and marine organisms. This part of EN 351 does not consider
26、other properties of treated wood, for example odour, corrosiveness and compatibility with other materials, nor does it consider any properties from the health, safety and environmental point of view. This part of EN 351 does not apply to wood treated with formulations that are applied to timber in s
27、ervice to eliminate or control an existing fungal or insect infestation, or to prevent attack by sapstain fungi, or insects in green timber. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited
28、applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 350-2, Durability of wood and wood-based products Natural durability of solid wood Part 2: Guide to natural durability and treatability of selected wood species of importance in Euro
29、pe EN 351-2, Durability of wood and wood-based products Preservative-treated solid wood Part 2: Guidance on sampling for the analysis of preservative-treated wood EN 599-1, Durability of wood and wood-based products Performance of preventive wood preservatives as determined by biological tests Part
30、1: Specification according to hazard class. EN 1001-2:2005, Durability of wood and wood-based products Terminology Part 2: Vocabulary ISO 2859-1, Sampling procedures for inspection by attributes Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection EN 351-1:200
31、7 (E) 6 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 1001-2:2005 and the following apply. 3.1 active ingredient(s) individual chemical compound or compounds included in a wood preservative product to give it specific activity against biological age
32、nts of deterioration NOTE Adapted from EN 1001-2:2005, 4.01. 3.2 analytical zone that part of the treated wood which is analysed for assessing compliance with the retention requirement (see 3.16) NOTE The analytical zone is taken from the lateral surfaces of the treated wood. The depth to which samp
33、ling is required will depend upon the species of wood being analysed and the treatment level concerned. EN 1001-2:2005, 4.03 3.3 batch clearly identifiable collection of units of preservative-treated wood manufactured to conform to the same defined penetration and retention requirements EN 1001-2:20
34、05, 4.04 3.4 biological reference value amount in grams per square metre or kilograms per cubic metre of a wood preservative (as product) found to be effective in the test in preventing attack by the particular biological agent being tested EN 1001-2:2005, 4.06 3.5 charge all the wood treated togeth
35、er in a single operation EN 1001-2:2005, 4.13 3.6 composite sample collection of all test samples derived from the sampling units taken from the batch in accordance with the chosen sampling plan for the determination of retention EN 1001-2:2005, 4.15 3.7 critical value value equivalent to the highes
36、t biological reference value (in grams per square metre or kilograms per cubic metre) obtained from all the biological tests carried out in accordance with EN 599-1 for any given use class NOTE The critical value will vary according to use class, method of application, and organisms against which th
37、e preservative is to provide protection and whether it is to be applied to softwood or hardwood. EN 1001-2:2005, 4.18 EN 351-1:2007 (E) 7 3.8 exposed heartwood heartwood of a timber component that is not enclosed by sapwood EN 1001-2:2005, 1.14 3.9 glued laminated timber (glulam) structural member f
38、ormed by the lateral surfaces of timber laminations with the grain running essentially parallel 3.10 incising procedure of puncturing the lateral surfaces of wood as an aid in securing deeper and more uniform penetration of wood preservative EN 1001-2:2005, 4.38 3.11 lamination layer of wood in glue
39、d laminated timber (see 3.9) formed from one or several boards, usually end jointed, but sometimes side jointed or both so as to extend to the full width and length of the member 3.12 penetration requirement minimum depth to which the active ingredient(s) (3.1) of the wood preservative is (are) requ
40、ired to penetrate the wood EN 1001-2:2005, 4.59 3.13 penetrating treatment process process which includes features or procedures intended to overcome the natural resistance of wood to penetration by a wood preservative product in its ready for use form NOTE Such processes include, for example, curre
41、ntly practised technologies of diffusion treatment, the double vacuum process and the vacuum/pressure process. EN 1001-2:2005, 4.58 3.14 permeable species wood species having timber comprising of sapwood or both sapwood and heartwood of treatability class 1 as defined in EN 350-2 NOTE Adapted from E
42、N 1001-2:2005, 4.61. 3.15 resistant species all wood species having timber not of treatability class 1 as defined in EN 350-2 NOTE Adapted from EN 1001-2:2005, 4.72. EN 351-1:2007 (E) 8 3.16 retention requirement loading of the wood preservative product that is required in the analytical zone NOTE T
43、he retention requirement is expressed in grams of product per square metre for superficial application processes (see 3.19) and kilograms of product per cubic metre for penetrating treatment processes (see 3.13). It is derived from the critical value in different ways depending upon the particular t
44、est involved EN 1001-2:2005, 4.73. 3.17 sampling unit one unit (for example a pole, a board, a fence post) of preservative-treated wood taken from a batch (see 3.3) of preservative-treated wood EN 1001-2:2005, 4.75 3.18 solid wood wood which has been sawn or otherwise machined NOTE It may include fi
45、nger jointed and/or laminated wood. EN 1001-2:2005, 1.39 3.19 superficial application process process which does not include particular features or procedures intended to overcome the natural resistance of wood to penetration of a wood preservative product in its ready to use form NOTE Such processe
46、s include for example brush and spray techniques and short-time immersion (dipping) processes in which the wood normally has only a few minutes contact with the wood preservative. EN 1001-2:2005, 4.82 3.20 transition wood wood in a zone between the true sapwood and the true heartwood NOTE This is on
47、ly distinguishable in very few wood species. In general its durability is intermediate between that of sapwood and heartwood, whereas its treatability is similar to that of heartwood. EN 1001-2:2005, 1.45 4 Raw materials 4.1 Wood to be treated The quality of the wood to be treated shall comply with
48、relevant product specification or the standard to which this document is to be applied. NOTE 1 The wood should be free from features which would prevent proper application of the preservative or impair the serviceability of the preservative-treated wood. NOTE 2 The moisture content of the wood shoul
49、d be at a level appropriate to the wood preservative and method of treatment used. All machining of the wood should be carried out before treatment. EN 351-1:2007 (E) 9 4.2 Wood preservatives The wood preservatives used shall comply with the requirements of EN 599-1 concerning their efficacy against wood-destroying organisms. 5 Preservative-treated solid wood 5.1 General Preservative-treated solid wood shall be defined in terms of a penetration and retention requirement. 5.2 Penetration 5.2.1 Penetration requirements The p
