CEN TS 15119-1-2008 Durability of wood and wood-based products - Determination of emissions from preservative treated wood to the environment - Part 1 Wood held in the storage yard.pdf

1、DD CEN/TS 15119-1:2008ICS 13.020.30; 71.100.50NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWDRAFT FOR DEVELOPMENTDurability of wood and wood-based products Determination of emissions from preservative treated wood to the environmentPart 1: Wood held in the storage yard after

2、treatment and wooden commodities exposed in Use Class 3 (not covered, not in contact wih the ground) Laboratory methodThis Draft for Developmentwas published under theauthority of the StandardsPolicy and StrategyCommittee on 28 February2010. BSI 2010ISBN 978 0 580 58923 2Amendments/corrigenda issued

3、 since publicationDate CommentsDD CEN/TS 15119-1:2008National forewordThis Draft for Development is the UK implementation of CEN/TS15119-1:2008. It partially supersedes PD CEN/TR 15119:2005.This publication is not to be regarded as a British Standard.It is being issued in the Draft for Development s

4、eries of publications andis of a provisional nature. It should be applied on this provisional basis,so that information and experience of its practical application can beobtained.Comments arising from the use of this Draft for Development arerequested so that UK experience can be reported to the int

5、ernationalorganization responsible for its conversion to an international standard.A review of this publication will be initiated not later than 3 years afterits publication by the international organization so that a decision can betaken on its status. Notification of the start of the review period

6、 will bemade in an announcement in the appropriate issue of Update Standards.According to the replies received by the end of the review period,the responsible BSI Committee will decide whether to support theconversion into an international Standard, to extend the life of theTechnical Specification o

7、r to withdraw it. Comments should be sent tothe Secretary of the responsible BSI Technical Committee at BritishStandards House, 389 Chiswick High Road, London W4 4AL.The UK participation in its preparation was entrusted to TechnicalCommittee B/515, Wood preservation.A list of organizations represent

8、ed 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 immunityfrom legal obligations.DD CEN/TS 15119-1:

9、2008TECHNICAL SPECIFICATIONSPCIFICATION TECHNIQUETECHNISCHE SPEZIFIKATIONCEN/TS 15119-1May 2008ICS 13.020.30; 71.100.50English VersionDurability of wood and wood-based products - Determination ofemissions from preservative treated wood to the environment -Part 1: Wood held in the storage yard after

10、treatment andwooden commodities exposed in Use Class 3 (not covered, notin contact with the ground) - Laboratory methodDurabilit du bois et des matriaux base de bois -Estimation des missions dans lenvironnement du boistrait avec des produits de prservation - Partie 1 : Boisstock en dpt aprs traiteme

11、nt et articles en boisexposs en classe demploi 3 (non couverts, non encontact avec le sol) - Mthode de laboratoireDauerhaftigkeit von Holz und Holzprodukten - Abschtzungvon Emissionen von mit Holzschutzmitteln behandeltemHolz an die Umwelt - Teil 1: Holz auf dem Lagerplatz nachder Behandlung und Hol

12、zprodukte in Gebrauchsklasse 3(nicht abgedeckt, ohne Erdkontakt) - LaborverfahrenThis Technical Specification (CEN/TS) was approved by CEN on 20 November 2007 for provisional application.The period of validity of this CEN/TS is limited initially to three years. After two years the members of CEN wil

13、l be requested to submit theircomments, particularly on the question whether the CEN/TS can be converted into a European Standard.CEN members are required to announce the existence of this CEN/TS in the same way as for an EN and to make the CEN/TS availablepromptly at national level in an appropriat

14、e form. It is permissible to keep conflicting national standards in force (in parallel to the CEN/TS)until the final decision about the possible conversion of the CEN/TS into an EN is reached.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark

15、, 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 EUROPEN DE NORMALISATIONEUR

16、OPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2008 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. CEN/TS 15119-1:2008: EDD CEN/TS 15119-1:2008CEN/TS 15119-1:2008 (E) 2 Contents Page Foreword3 Introdu

17、ction .4 1 Scope 5 2 Description of the test method.5 3 Test report 10 Annex A (informative) Recording forms .11 Bibliography 13 DD CEN/TS 15119-1:2008CEN/TS 15119-1:2008 (E) 3 Foreword This document (CEN/TS 15119-1: 2008) has been prepared by Technical Committee CEN/TC 38 “Durability of wood and wo

18、od-based products”, the secretariat of which is held by AFNOR. 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. According to the CEN/CE

19、NELEC Internal Regulations, the national standards organizations of the following countries are bound to announce this Technical Specification: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,

20、 Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. This document is derived from a Technical Report (CEN/TR 15119), submitted to OECD as a draft Test Guideline, following a request from OECD for the development o

21、f an OECD wide environmental exposure scenario document for wood preservatives in the framework of the EU Biocides Directive 98/8/EC. DD CEN/TS 15119-1:2008CEN/TS 15119-1:2008 (E) 4 Introduction The emissions from preservative treated wood into the environment need to be quantified to enable an envi

22、ronmental risk assessment to be made of the treated wood. This document describes a laboratory method for the determination of emissions from preservative treated wood where the preservative treated wood is not covered and not in contact with the ground or the water. There are two situations in this

23、 case where such emissions could enter the environment: a) emissions from preservative treated wood stored outside in the storage yard of a preservative treatment site. Rain falling on the treated wood could produce emissions that run off into surface water and / or soil; b) emissions from treated w

24、ood used in commodities exposed in Use Class 3. This is the situation in which the wood or wood-based product is not covered and not in contact with the ground. It is either continually exposed to the weather or is protected from the weather but subject to frequent wetting. Use classes are defined i

25、n EN 335-1 and categorise the biological hazard to which the treated commodity will be subjected. The Use Classes also define the situation in which the treated commodity is used and determine the environmental compartments (air, water, soil) which are potentially at risk from the preservative treat

26、ed wood. Rain falling on treated wood in Use Class 3 could produce emissions that run off into surface water and/ or soil. The method is a laboratory procedure for obtaining water samples (emissate) from treated wood exposed out of ground contact, at time intervals after exposure. The quantities of

27、emissions in the emissate are related to the surface area of the wood and the length of exposure, to estimate a flux in milligrams per square metre per day. The flux after increasing periods of exposure (e.g. 1 year, 10 years) can be estimated. NOTE The emissate can also be tested for eco-toxicologi

28、cal effects. The quantity of emissions can be used in an environmental risk assessment of the treated wood. DD CEN/TS 15119-1:2008CEN/TS 15119-1:2008 (E) 5 1 Scope This Technical Specification describes a laboratory method for obtaining water samples from preservative treated wood exposed out of gro

29、und contact (wood held in the storage yard after treatment and which has been in conditions designed to simulate outdoor, out of ground contact situations), at increasing time intervals after exposure. 2 Description of the test method 2.1 General considerations The principal agent for causing emissi

30、ons from wood during open-air storage in the yard and in Use Class 3 is rainfall. Wood exposed in above ground situations is subjected to intermittent wetting by rainfall and drying of the wood surface between the rainfall events. These wetting and drying cycles are simulated by the method described

31、 in this document. It is assumed that emissions obtained by short-term immersion in water are indicative of the emissions which will occur during exposure to rainfall. The wood, in the case of wood treated with a wood preservative, shall be representative of commercially treated wood. It shall be tr

32、eated in accordance with the preservative manufacturers instructions and in compliance with appropriate standards and specifications. The parameters for post-treatment conditioning of the wood prior to the commencement of the test shall be stated. The wood samples used shall be representative of the

33、 commodities used. The composition, amount, pH value and the physical form of rainfall are important in determining the quantity, content and nature of emissions from wood. However, simulating a realistic rainfall regime in the laboratory is time-consuming, expensive and is likely to lack reproducib

34、ility, accuracy, precision and reliability. This method uses a 1 min immersion in water and has been developed to give the wood moisture content, which is relative to a rainfall event. There are three immersions per day and days of immersion are set at 1 days, 3 days, 5 days, 8 days, 10 days, 12 day

35、s, 15 days, 17 days and 19 days. This schedule allows sampling 3 times per week on Monday, Wednesday and Friday. 2.2 Principle To simulate the emission of wood preservatives from wood exposed to rain water, a simulated wetting and drying process is employed. At each of the 9 “immersion days” stated

36、in 2.1, the following process is applied : test specimens are immersed in water for 1 minute and then removed and allowed to dry; this cycle is repeated three times during an immersion day. This process is used to simulate the wetting and drying of natural exposure situations. The water (emissate) f

37、rom each immersion day is collected and analysed chemically. It is suitable for ecotoxicity testing. Emission rates in milligrams per square metre per day are calculated from analytical results. A system with untreated wood specimens provides background levels for emissates from wood. Tests with unt

38、reated samples can be discontinued if there is no background detected in the first three data points. 2.3 Product and reagent 2.3.1 Water Water complying with grade 3 of EN ISO 3696 or water especially designed for environmental investigations is ideal. Deionised water can also be used. The pH value

39、 shall normally be in the range 5 to 7. The pH value shall not be adjusted unless special conditions might justify setting the pH to a specified value between 5 and 7. Water temperature shall be (20 2) C. DD CEN/TS 15119-1:2008CEN/TS 15119-1:2008 (E) 6 The pH value and water temperature shall be sta

40、ted in the test report. 2.3.2 Preservative The identity of the preservative product used to treat the wood samples shall be stated in the test report. It shall state the name and other designation of the preservative, and the trade or common name of the active ingredient(s) and substances of concern

41、 (as defined in the EU Directive 98/8/EC) or a generic description of co-formulants and the composition of the product expressed in terms of the mass fraction of each of the ingredients. 2.4 Apparatus 2.4.1 Immersion container The container shall be made of a material that is inert to water and the

42、treated timber and large enough to allow the test specimens to have all their faces exposed to water and to contain sufficient water for the ratio of the exposed surface area of the test specimen to the volume of water to which it is exposed, to be 40 (i.e. 40 m2per 1m3or 0,4 cm2 1cm-3). The volume

43、of water required is therefore 25 l per m2of exposed surface area of the test specimen (this is equivalent to 2,5 cm3per cm2). NOTE For example, for five wood test specimens 25 mm wide by 50 mm long, 15 mm thick, end sealed, where the surface area exposed to water is 200 cm2, the volume of water req

44、uired is 500 ml. 2.4.2 Assembly for test specimens No equipment used to hold the test specimens below the level of the water shall be made of a material that will react with the water or the treated timber. The test samples should be restrained in a test frame which allows all 5 test specimens to be

45、 manoeuvred simultaneously and which allows free access of water to all surfaces. 2.5 Test specimens 2.5.1 Species of wood The wood species shall be typical of the wood species used for the efficacy testing of wood preservatives e.g. Pinus sylvestris (Linnaeus) (Scots pine). NOTE Additional tests ma

46、y be made using other species but, if so, this should be stated in the test report. 2.5.2 Quality of wood and wood moisture content Use straight grained wood without knots. Material of a resinous appearance shall be avoided. NOTE The wood should be typical of wood that is commercially available. The

47、 source, density and number of annual growth rings per 10 mm radius shall be stated in the test report. 2.5.3 Size of test specimens Wood test specimens have minimum dimensions of 25 mm wide by 50 mm in length, 15 mm thick, with the longitudinal faces parallel to the grain of the wood. Test specimen

48、s shall consist of 100 % sapwood. Each test specimen is marked so that it can be identified throughout the test. The wood test specimens shall be plain sawn and the surfaces shall not be sanded. DD CEN/TS 15119-1:2008CEN/TS 15119-1:2008 (E) 7 2.5.4 Number of test specimens Two sets of treated test s

49、pecimens in two immersion containers (2.4.1) are used and the mean value taken as the emission value. One set of untreated test specimens in one immersion container is also used. The number of wood test specimens depends on the specimens size. The total surface of wood test specimens to be immersed in one immersion container is at least 200 cm2, and the minimum number of test specimens per immersion container is three. For one test there is at least nine (three sets of three) test specimens: six test specimens are treated with preservative, three test specime