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STANDARD
SIST EN 15228:2009
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 15228March 2009ICS 71.100.50; 79.040 English VersionStructural timber - Structural timber preservative treated againstbiological attackBois de structure - Bois de structure traité avec un produitde préservation contre les attaques biologiquesBauholz - Bauholz für 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 EuropeanStandard 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 (English, 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, Cyprus, 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 STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre:
Avenue Marnix 17,
B-1000 Brussels© 2009 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 15228:2009: ESIST EN 15228:2009
EN 15228:2009 (E) 2 Contents Page Foreword .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 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 treated 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 stiffness properties of treated timber . 11 A.1 General . 11 A.2 Preservatives types . 11 Bibliography . 12
SIST EN 15228:2009
EN 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 European 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 elements 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 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, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. SIST EN 15228:2009
EN 15228:2009 (E) 4 1 Scope This European Standard specifies general requirements for 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 covered 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 purpose. 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 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, Durability 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 – Preservative-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 physical 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: 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 structures – 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 SIST EN 15228:2009
EN 15228:2009 (E) 5 CEN/TR 14823, Durability 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 Terms 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 attack 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 preservative 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 relevant 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 Products 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 product shall
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