EN 15228-2009 en Structural timber - Structural timber preservative treated against biological attack《结构木材 防生物浸蚀处理的结构木材防腐剂》.pdf

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1、BS EN 15228:2009ICS 71.100.50; 79.040NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDStructural timber Structural timberpreservative treatedagainst biologicalattackThis British Standardwas published under theauthority of the StandardsPolicy and StrategyCommittee

2、 on 31 December2009 BSI 2009ISBN 978 0 580 55409 4Amendments/corrigenda issued since publicationDate CommentsBS EN 15228:2009National forewordThis British Standard is the UK implementation of EN 15228:2009.The UK participation in its preparation was entrusted to TechnicalCommittee B/518, Structural

3、timber.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunityf

4、rom legal obligations.BS EN 15228:2009EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 15228March 2009ICS 71.100.50; 79.040English VersionStructural timber - Structural timber preservative treated againstbiological attackBois de structure - Bois de structure trait avec un produitde prservation cont

5、re les attaques biologiquesBauholz - Bauholz fr tragende Zwecke mitSchutzmittelbehandlung gegen biologischen BefallThis European Standard was approved by CEN on 7 February 2009.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this Eu

6、ropeanStandard the status of a national standard without any alteration. 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 (Englis

7、h, French, German). A version in any other language made by translationunder 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, Cyp

8、rus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, 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

9、 EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 15228:2009: EBS EN 15228:2009EN 15228:2009 (E) 2 Contents Page Foreword

10、3 1 Scope 4 2 Normative references 4 3 Terms and definitions .5 4 Requirements for structural timber products treated against biological attack .5 4.1 Timber .5 4.2 Penetration .5 4.3 Retention 5 4.4 Reaction to fire .5 4.4.1 General 5 4.4.2 Products classified without further testing .5 4.4.3 Other

11、 products 5 4.5 Strength and stiffness properties 6 4.6 Dangerous substances .7 4.6.1 Content of pentachlorophenol (PCP) .7 4.6.2 Release of other dangerous substances .7 5 Evaluation of conformity .7 5.1 General 7 5.2 Initial type testing 7 5.2.1 General 7 5.2.2 ITT characteristics of timber treate

12、d against biological attack .7 5.3 Factory production control .8 5.3.1 General 8 5.3.2 Equipment .8 5.3.3 Control of raw materials and preservatives .9 5.3.4 Treatment solution preparation 9 5.3.5 Process control 9 6 Marking .9 Annex A (normative) Preservative treatment not affecting strength and st

13、iffness properties of treated timber 11 A.1 General . 11 A.2 Preservatives types 11 Bibliography 12 BS EN 15228:2009EN 15228:2009 (E) 3 Foreword This document (EN 15228:2009) has been prepared by Technical Committee CEN/TC 124 “Timber structures”, the secretariat of which is held by SFS. This Europe

14、an Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by September 2009, and conflicting national standards shall be withdrawn at the latest by September 2009. Attention is drawn to the possibility that some of the e

15、lements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports

16、essential requirements of EC Directive(s). According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany,

17、 Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 15228:2009EN 15228:2009 (E) 4 1 Scope This European Standard specifies general requirements fo

18、r structural timber that has been treated with preservatives against biological attack. This European Standard also specifies requirements for the evaluation of conformity and marking of preservative treated timber products when they are placed on the market. Treatments which include a biocide are c

19、overed by this standard. It does not provide details of which preservative treatments are necessary for a particular type of structural timber product to achieve a required service life, as regional climatic differences and prevalent biological agents would need to be taken into account for that pur

20、pose. This European Standard does not cover any subsequent treatment which may be required for structural timber products which have been machined, bored or planed after the CE marking has been applied. This standard does not cover the qualification of preservation products used to treat structural

21、timber. 2 Normative references The following referenced documents are indispensable for the application 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. EN 335-1:2006, Dur

22、ability of wood and wood-based products Definition of use classes Part 1: General EN 351-1:2007, Durability of wood and wood-based products Preservative-treated solid wood Part 1: Classification of preservative penetration and retention EN 351-2:2007, Durability of wood and wood-based products Prese

23、rvative-treated solid wood Part 2: Guidance on sampling for analysis of preservative-treated wood EN 384, Structural timber Determination of characteristic values of mechanical properties and density EN 408, Timber structures Structural timber and glued laminated timber Determination of some physica

24、l and mechanical properties EN 599-1:1996, Durability of wood and wood-based products Performance of preventive wood preservatives as determined by biological tests Part 1: Specification according to hazard class EN 13501-1, Fire classification of construction products and building elements Part 1:

25、Classification using data from reaction to fire tests EN 13823, Reaction to fire tests for building products Building products excluding floorings exposed to the thermal attack by a single burning item EN 14080:2005, Timber structures - Glued laminated timber - Requirements EN 14081-1:2005, Timber s

26、tructures Strength graded structural timber with rectangular cross section Part 1: General requirements EN 14250:2004, Timber structures Product requirements for prefabricated structural members assembled with punched metal plate fasteners BS EN 15228:2009EN 15228:2009 (E) 5 CEN/TR 14823, Durability

27、 of wood and wood-based products Quantitative determination of pentachlorophenol in wood Gas chromatographic method prEN 15497:2008, Finger jointed structural timber performance requirements and minimum production requirements EN ISO 9001, Quality managements systems Requirements (ISO 9001:2008) 3 T

28、erms and definitions For the purposes of this document, the terms and definitions given in EN 335-1:2006, EN 351-1:2007, EN 351-2:2007, EN 599-1:1996, EN 14080:2005, EN 14081-1:2005, EN 14250:2004 and prEN 15497:2008 apply. 4 Requirements for structural timber products treated against biological att

29、ack 4.1 Timber Timber to be preservative treated shall comply with EN 14081-1. 4.2 Penetration The penetration shall be declared in terms of the penetration classes listed in EN 351-1. 4.3 Retention The mean retention in the analytical zone (see EN 351-1) shall be equal to or greater than the preser

30、vative retention declared by the treated timber producer. This means that retention shall be declared as the retention value. The required retention value shall be determined by the national provisions valid at the place of use of the treated timber, or be derived from the critical value for the rel

31、evant use class as defined in EN 599-1. 4.4 Reaction to fire 4.4.1 General The reaction to fire performance shall be declared where the product is subject to reaction to fire regulatory requirements and it may also be done when the product is not subject to such regulatory requirements. 4.4.2 Produc

32、ts classified without further testing Where the preservative treatment does not result, when dry, in an addition in the analytical zone of the treated timber of more than 2 % by mass of organic material, the reaction to fire classification given in the appropriate product standard for the untreated

33、product shall apply. 4.4.3 Other products Where the preservative treatment adds in the analytical zone more than 2 % by mass of organic material to the initial mass of the re-dried timber, the treated product shall be tested and classified in accordance with EN 13501-1. BS EN 15228:2009EN 15228:2009

34、 (E) 6 When tested according to EN 13823 (i.e. SBI test), the specimen shall be mounted in accordance with the following procedure: for testing, the whole area of both wings in the SBI apparatus shall be covered with timber pieces with a minimum thickness of 22 mm, mounted edge to edge (butt jointed

35、), without jointing or bonding and orientated horizontally or vertically; the pieces shall be supported by timber battens, minimum 30 mm by 30 mm, fixed to the test backing boards at 400 mm to 600 mm centres horizontally or vertically (perpendicular to the orientation of the timber pieces). The resu

36、lts for products tested with a given preservative type and retention value in the analytical zone, shall be applicable for the same preservative type applied at a lower retention, and to timber thicknesses and densities greater than those tested. 4.5 Strength and stiffness properties Strength and st

37、iffness shall be assumed not to be affected in the following cases: treatments and preservatives listed in Annex A, or treatments with a penetration class not exceeding class NP2 according to EN 351-1. In any other case (e.g. permeable species and deep treatments with class NP 3 and above and with n

38、on organic products) since the treatment might affect the strength and stiffness properties, an evaluation shall be performed according to the following principles: Two matched samples of 50 commercial size pieces each shall be taken. Matching shall be based on the modulus of elasticity (MOE); One s

39、ample shall remain untreated as the control sample. The remaining sample shall be treated with the treatment to be assessed; From each piece, 2 specimens shall be taken; one for a bending test according to EN 408 and, the other one for a tension perpendicular to grain according to EN 408; From the b

40、ending specimens, pieces to be tested for equilibrium moisture content shall be taken, according to EN 408; All specimens shall be tested for bending strength or tension perpendicular to grain according to EN 408 and EN 384 and the tested values reported; A statistical test to compare the means of b

41、oth samples at a significance level of 75 % shall be performed; NOTE see for example ISO 12491:1997, 6.4. In case of a statistical difference in the means of more than 10 %, the preservative treated timber shall be considered as not meeting the requirements of this European Standard. BS EN 15228:200

42、9EN 15228:2009 (E) 7 4.6 Dangerous substances 4.6.1 Content of pentachlorophenol (PCP) If a preservative used for the treatment contains pentachlorophenol (PCP), then the treated structural timber shall be tested according to CEN/TR 14823. If the value of 5 x 10-6is exceeded, it shall be declared in

43、 the marking as follows, “PCP 5 x 10-6” . NOTE In certain Member States preservative treated structural timber products with a PCP content of more than 5 x 10-6are not allowed. 4.6.2 Release of other dangerous substances Consideration shall be given to other dangerous substances. NOTE 1 Such cases a

44、re covered by Annex ZA, Clause ZA1, of each relevant harmonized standard. NOTE 2 Some requirements of the Directive 98/8/EC with regard to placing of biocidal products on the market may also be applicable to preservatives. 5 Evaluation of conformity 5.1 General The compliance of preservative treated

45、 structural timber with the requirements of this European Standard shall be demonstrated by: initial type testing, factory production control, including treated timber product assessment. For the purposes of testing, preservative treated timber products may be grouped into families, where it is cons

46、idered that the results from testing any product within the family are representative for all other products within that family. 5.2 Initial type testing 5.2.1 General The purpose of initial type testing is to obtain by direct testing, where this is relevant, declared values or classes or other appr

47、opriate information on all characteristics of the treated structural timber given in Clause 4. Initial type testing shall be performed to show conformity with this European Standard. Tests previously performed in accordance with the provisions of this European Standard (same product, requirements(s)

48、, test method, sampling procedure, system of attestation of conformity, etc.) shall be taken into account. Whenever a change occurs which would change significantly one or more of the characteristics, the initial type tests shall be repeated for the appropriate characteristic(s). 5.2.2 ITT character

49、istics of timber treated against biological attack a) With regard to the declared penetration class and retention value, the initial type testing shall be carried out in accordance with the direct testing requirements of EN 351-1. The samples shall be treated BS EN 15228:2009EN 15228:2009 (E) 8 with the subject preservative by a treatment process no more severe or of longer duration than that used in practice by the treated timber supplier. This initial type testing shall, for the given range of treatment paramet