1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 152:2011Wood preservatives Determination of theprotective effectiveness of apreservative treatment againstblue stain in wood in service Laboratory methodCopyright European
2、Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 152:2011 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 152:2011. Itsupersedes BS7066-1:1990 (R93) and B
3、S7066-2:1990 (R93) which arewithdrawnThe UK participation in its preparation was entrusted to TechnicalCommittee B/515, Wood preservation.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessarypro
4、visions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2012ISBN 978 0 580 69581 0ICS 71.100.50Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Po
5、licy and Strategy Committee on 31 January 2012.Amendments issued since publicationDate Text affectedCopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 152:2011EUROPEAN STANDAR
6、D NORME EUROPENNE EUROPISCHE NORM EN 152 November 2011 ICS 71.100.50 Supersedes EN 152-1:1988, EN 152-2:1988English Version Wood preservatives - Determination of the protective effectiveness of a preservative treatment against blue stain in wood in service - Laboratory method Produits de prservation
7、 du bois - Dtermination de lefficacit prventive dun traitement de protection du bois mis en uvre contre le bleuissement fongique - Mthode de laboratoire Holzschutzmittel - Bestimmung der vorbeugenden Wirksamkeit einer Schutzbehandlung von verarbeitetem Holz gegen Blaepilze - Laboratoriumsverfahren T
8、his European Standard was approved by CEN on 24 September 2011. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical re
9、ferences concerning such national standards may be obtained on application to the CEN-CENELEC 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 translation under the responsibility of a
10、CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary,
11、Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Av
12、enue Marnix 17, B-1000 Brussels 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 152:2011: ECopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking perm
13、itted without license from IHS-,-,-BS EN 152:2011EN 152:2011 (E) 2 Contents Page Foreword 4Introduction .51 Scope 62 Normative references 63 Terms and definitions .74 Principle 75 Test materials .85.1 Biological material .85.2 Products and reagents 85.3 Apparatus 105.4 Other material 116 Sampling 11
14、7 Test specimens . 117.1 Species of wood 117.2 Wood quality . 127.3 Preparation of sticks and blocks 127.4 Preparation of test specimens 137.5 Number of test specimens . 138 Procedure 148.1 Treatment of the wood test specimens 148.2 Pre-conditioning of the test specimens prior to fungal test 178.3 F
15、ungal test . 178.4 Test conditions and duration of test. 188.5 Assessment of the test specimens . 189 Validity of results 1910 Reporting the results 2011 Test report . 20Annex A (normative) Detailed information on coating products 22A.1 General . 22A.2 Alkyd coating material for organic solvent base
16、d preparations (5.2.2.2) . 22A.3 Acrylic coating material for water based preparations (5.2.2.3) 24Annex B (normative) Preparation of a spore suspension of the test fungi . 27Annex C (informative) Information regarding sterilisation procedures 28C.1 Ionising irradiation 28C.2 Steam . 28Annex D (info
17、rmative) Figures on equipment and diagrams . 29Annex E (informative) Instructions on the test procedure . 34Annex F (normative) Artificial weathering cycle . 36F.1 Introduction . 36F.2 Apparatus minimum requirements 36F.3 Weathering cycles 37F.4 Criteria to select weathering cycles 42F.5 Conditionin
18、g 42Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 152:2011EN 152:2011 (E) 3 Annex G (informative) Example of a test report . 43Annex H (informative) Environmental, health
19、 and safety precautions within chemical/biological laboratory . 44Bibliography 45Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 152:2011EN 152:2011 (E) 4 Foreword This doc
20、ument (EN 152:2011) 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 national standard, either by publication of an identical text or by endorsement, at th
21、e latest by May 2012, and conflicting national standards shall be withdrawn at the latest by May 2012 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
22、 patent rights. This document supersedes EN 152-1:1988, EN 152-2:1988. Significant technical differences between this standard and EN 152-1 and EN 152-2:1988 are as follows: a) introduction of a new harmonised specification for the test specimens used in the diverse biological tests; b) merging of P
23、art 1 relating to the brushing procedure and Part 2 concerning the application by methods other than brushing; c) taking into account of the terms given in EN 1001-1 and the definitions of EN 1001-2; d) introduction of an informative Annex to take account of consideration for minimisation of environ
24、mental and health hazards caused by the use of this biological test. 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, Croatia, Cyprus, Czech Republic, Denmark,
25、 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. Copyright European Committee for Standardization Provided by IHS
26、under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 152:2011EN 152:2011 (E) 5 Introduction The test method described in this European Standard is a laboratory method combined with pre-conditioning (natural or artificial weathering), which pr
27、ovides a basis for assessment of the effectiveness of a wood preservative or wood preservative systems in preventing the development of blue stain fungi in wood in service where disfigurement can be considered important, such as external decorative timber and joinery. The method permits the determin
28、ation of the effectiveness of undiluted preservatives and may also be used to test preparations in which the proportions of the individual components (active ingredients) have been varied and so establish for the active ingredients the limit of their effectiveness. It should be used to assess the va
29、lue of the protection, taking into account the method of application and in particular the suppliers specifications. It is recommended that the results of these tests should be supplemented by further suitable tests and especially by practical experience. Suitable precautions should include the use
30、of separate rooms, areas within rooms, extraction facilities, conditioning chambers and special training for personnel (also see Annex H for environmental, health and safety precautions). Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduc
31、tion or networking permitted without license from IHS-,-,-BS EN 152:2011EN 152:2011 (E) 6 1 Scope This European Standard specifies a method which is only suitable for testing preparations and systems which are intended to prevent the occurrence of blue stain fungi in wood in service. It is not suita
32、ble for assessing the temporary preventive effectiveness of anti-stain preservatives on round wood or on freshly cut wood. The method is not intended for the determination of the fungicidal properties of the surface coating applied to the wood after the priming coat. This European Standard lays down
33、 a method for determining the effectiveness of a preparation applied by e.g. brushing, spraying, spraying tunnel, dipping or vacuum and pressure treatments resulting in an equivalent retention of product in preventing the development of blue stain fungi in wood in service. It is also applicable wher
34、e a primer paint is used in conjunction with the preservative system1). This method is applicable to the following types of preparations or systems: type A: fungicidal preparations with or without pigment, used in conjunction with unspecified varnishes or paint coatings; or type B: fungicidal prepar
35、ations with or without pigment, used in conjunction with specified varnishes or paint coatings; or type C: fungicidal preparations with or without pigment, used without any subsequent paint, varnish or other coating. NOTE It is also possible to test the effectiveness in preventing blue stain in serv
36、ice of a combined protective system which involves the application of one preparation by a penetrating treatment technique followed by a subsequent application of a different preparation by a superficial treatment method. 2 Normative references The following referenced documents are indispensable fo
37、r 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 927-6:2006, Paints and varnishes Coating materials and coating systems for exterior wood Part 6: Expo
38、sure of wood coatings to artificial weathering using fluorescent UV lamps and water EN ISO 3696, Water for analytical laboratory use Specification and test methods (ISO 3696:1987) 1) The method may also be used for first coat (primer) paints required to give protection during storage of components o
39、n-site (see Annex E). These are tested as for preparations of type C. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 152:2011EN 152:2011 (E) 7 3 Terms and definitions For
40、the purposes of this document, the following terms and definitions apply. 3.1 representative sample sample having its physical and/or chemical characteristics identical to the volumetric average characteristics of the total volume being sampled EN 1001-2, 4.71 3.2 supplier sponsor of the test (perso
41、n or company providing the sample of wood preservative to be tested) Adapted from EN 1001-2, 4.83 4 Principle The basic principles of the test method are to provide the conditions for infection by blue stain fungi into the treated face and into the cut surface behind the treated face (for surface tr
42、eatments) and to observe the development of infection into the treated face. A series of blocks of the given timber species are treated with the preparation under test on all faces except the end-grain faces. Subsequently the blocks are cut in the direction of the grain such that two specimens are p
43、roduced. The treatment differs according to the type of preparation (Annex E, Table E.1) and specifications for its use: Type A Preparations designed to be used with unspecified varnish or paint coatings are tested using the application rate appropriate to the preparation (Annex E, Table E.2) or as
44、otherwise specified by the supplier followed by the standard test varnish. Type B Preparations designed to be used with specified varnish or paint coatings are tested using the application rate appropriate to the preparation (Annex E, Table E.2) or as otherwise specified by the supplier followed by
45、a surface coating strictly according to the suppliers specification. Type C Preparations designed to be used without subsequent varnish or paint coatings are tested using the application rate appropriate to the product (Annex E, Table E.2) or as otherwise specified by the supplier but with no subseq
46、uent application of coating. Treated test specimens are exposed to pre-conditioning (natural or artificial weathering). Weathered test specimens are then exposed in the laboratory to the action of a mixed culture of two fungi causing blue stain in service. NOTE Preparations designed to be used solel
47、y in use class 2 (EN 335) may be preconditioned by using the evaporative aging method in EN 73 in place of the natural or artificial weathering procedures in this standard. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or network
48、ing permitted without license from IHS-,-,-BS EN 152:2011EN 152:2011 (E) 8 5 Test materials 5.1 Biological material The test fungi to be used in all tests are2) Aureobasidium pullulans (de Bary) Arnaud, strain P 2683), source Hann. Mnden; Sydowia polyspora (Bref. (analytical reagent grade) 1 mol/l NaOH 120 ml; 0,1 mol/l HCl 390 ml; water to make up 1 000 ml. 5.2.2 Coating material 5.2.2.1 General Tests can be performed for a specific coating material which has been specified by th
