Basis for Assessment of Wood Preservatives

Transcription

1 SKH PUBLICATION dd Basis for Assessment of Wood Preservatives Published by: SKH Copyright reserved

2 Publisher: Certification-body SKH Advisory Committee Wood Preservation (ACWP) Nieuwe Kanaal 9c P.O. Box AD Wageningen The Netherlands Telephone: Fax: Website: SKH No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying, microfilming, recording or otherwise, and/or made public, without prior permission in writing from SKH, nor may it be used without such permission for any other purpose than that for which it was produced. Page 2 of 26

3 Preface The treating of timber is only permitted with wood preservatives for which a valid permit has been issued by the Board for the authorization of plant protection preservatives and biocides (Ctgb). Practical experience has shown that there is a need for more guarantees concerning the effectiveness of (new) wood preservatives. The experience shows that the legal system has moved the accent more and more to the aspects of (national) health and environment. For the new generation preservatives in particular already authorized, but also preservatives obtaining a permit in future, there is a need for an adequate and objective evaluation of the effectiveness of the wood preservatives. With this basis for assessment for preservatives for the preventive treatment of timber is anticipated, both in respect of presentation (nomenclature) and contents (requirements) on the recent developments in timber preservation, whereby the requirements on European level are taken into account, becoming more and more important. The basis for assessment shall be in agreement with the applicable European and national legislation and regulations. The Wood Preservatives Evaluation Committee (WPEC) has therefore be made responsible by SKH with the assignment to assess the effectiveness of the wood preservatives allowed on the Dutch market that are applied in accordance with BRL 0601 (National Assessment Directive for the KOMO -product certificate for timber preservation), as well as the testing of preservatives legally allowed in foreign countries. The Wood Preservatives Evaluation Committee advises the director of SKH. At the time of publication of the basis for assessment the Timber Preservatives Evaluation Committee was made up of representatives of: SKH SHR TNO Built Environment and Geosciences Wageningen, the Netherlands Wageningen, the Netherlands Delft, the Netherlands Page 3 of 26

4 INHOUD 1. Subject Area of application Procedure 5 4. Terms and definitions Requirements Application principles for the Netherlands Characterizing and naming Requirements for the effectiveness of preservatives Demonstrating the effectiveness... Table 1.Use class(es), applications and types of deterioration and requirements for the effectiveness of the preservatives... Table 2. Overview of the required biological tests to be carried out on the formulated preservative Additional requirements Demonstrating the suitability for immersion treatments Demonstrating sufficient depth of penetration Demonstrating sufficient fixation properties Provisional Certificate of Approval with regard to EN 252 respectively ENV and ENV Normative references concerning wood preservatives Appendix 1: Application form for a Certificate of Approval 18 Appendix 2: Application file for a Wood Preservative Certificate of Approval Appendix 3: Specimen of a Wood Preservative Certificate of Approval Page 4 of 26

5 1. Subject This basis for assessment lays down requirements for wood preservatives to be used for wood preservation in accordance with Assessment Directive BRL 0601 Wood preservation. In addition to the statutory requirement for the availability of valid approval requirements by the Ctgb in pursuance of the Plant Protection Products and Biocides (Wgb) Act supplementary requirements are included in this Basis for Assessment which lead to an optimal wood preservation. 2. Area of application The Basis for Assessment applies to wood preservatives that can be used for the treatment of timber in accordance with BRL 0601 Timber preservation. 3. Procedure The Wood Preservatives Evaluation Committee (WPEC) advises the director of SKH about the issuing of a Certificate of Approval for a wood preservative for the purpose of treatment in accordance with BRL 0601 Timber preservation. The data supplied in the form of a file by the preservative supplier serve as basis for the advice. This Basis for Assessment describes which data are relevant for this. The Basis for Assessment states which minimum requirements for preservatives shall comply in order to effectively and safely be applied in the timber preservation industry for timber that is marketed under KOMO certificate. If it emerges in practice that for certain aspects and components of timber preservatives no limits are known; the Evaluation Committee shall assess the statements of the supplier and shall be in a position to advise on the basis of the expertise present within the Committee. Page 5 of 26

6 The Wood Preservative Evaluation Committee will issue its advice to the director of SKH on the basis of all the requirements stated in this Basis for Assessment. If the director of SKH accepts the advice, then the Certificate of Approval will be issued and the wood preservative will be placed on the list of approved preservatives. The procedure that shall be followed in order to grant access of a wood preservative to the market for certified treated timber is made up of two sequential steps, which are each concerned with an essential aspect A. The statutory statement of approval This statement is legally required under the terms of the Plant Protection products and Biocides Act in order to bring a wood preservative onto the market in the Netherlands. The technical file that shall be submitted to the Board for the Authorization of Plant Protection Products and Biocides includes elements concerning toxicology, eco-toxicology, labelling, limitations on use and effectiveness. Applications for this should be sent to: CTGB Board for the Authorization of Plant Protection Products and Biocides P.O. Box 217 tel. +31 (0) AE Wageningen fax +31 (0) The Netherlands Internet: B. The Certification of Approval for the preservative on behalf of certified wood preservation A Certificate of Approval shall be issued for a wood preservative that is permitted for sale, and, if it complies with the requirements contained in this document, is permitted for the usage classes and application methods indicated by the producer in the Netherlands. The Certificate of Approval specifies the minimum amount of wood preservative necessary in order that the product is effective, derived from the results of biological tests as specified in EN 599-1, for each of the usage classes within which the product may be used according to the Certificate of Approval. A supplier s application for a Certificate of Approval is only admissible if a valid application for legal approval by the CTGB has also been made. The technical file should contain evidence of the product s effectiveness. These evidences should be supplied in the form of reports of tests carried out in one or more independent certified laboratories, in accordance with the applicable standardised tests. Page 6 of 26

7 Holders of a foreign certificate shall comply with the following requirements. There shall be a legal certificate of approval in any member state of the European Union. All active ingredients should be found in one or more valid Dutch certificates of approval for wood preservatives, or at least for pesticides in the sense of Plant Protection Products and Biocides Wgb Act for PT8. For the rest, the requirements applicable for the granting of a Certificate of Approval are the same as those for substances permitted in the Netherlands. The submission of all or part of a file as referred to in this document is not necessary if the applicant can supply a Letter of Access from another permit holder. An application can be made without a legal permit or an admissible application for a legal permit being available. Such applications shall be considered, but can only result in the issue of a provisional Statement of Approval. This is converted to a permit when a Certificate of Approval can be provided. The applications for a Certificate of Approval can be submitted to the following address: SKH P.O. Box AD Wageningen, the Netherlands tel: fax: The Statement of Approval is issued for the duration of one year, and will be extended twice if there is no cause for amendment. The validity period of the statement shall not exceed three years, and it is in any event not valid for longer than the statutory period of the permit on the grounds of the Act Plant Protection Products and Biocides or the end date of the permit from another country. The company concerned can make a renewal application to SKH six months before the expiry date of a statement. The current certification then remains valid for a period of a maximum of 6 months, during which time the WPEC will investigate the amended file. Page 7 of 26

8 4. Terms and definitions ACH Applicant BHM Degree of fixation Certificate of Approval Advisory Committee Timber Preservation, consisting of representatives of suppliers and buyers/users of products/processes (VHN, VHCP and VVNH), the certification-body and the research institutes SHR and TNO. As Assessment Committee ACH assists the Board of Experts of SKH. The interested party who wishes a Certificate of Approval on for his product and submits therefore an application. Wood Preservatives Evaluation Committee (WPEC) consisting of more than 1 person, who are experts in their fields and are in a position to submit an objective judgement. The percentage of the quantity of brought in preservative that after having been subjected to the stand test has remained present in the timber. A Certificate of Approval is a document issued by SKH on the basis of the Basis for Assessment of wood preservatives. Draft Certificate of Approval: A Certificate of Approval that can be used as support of the application procedure for an authority declaration of the preservative. Interim Suitability Declaration: A Suitability Declaration for a product for which a valid authority is available, but whereby, due to not rounded-off long-time field tests, not yet has been complied demonstrably with all requirements can be complied with all requirements of the Basis of Assessment. Page 8 of 26

9 5. Requirements 5.1 Application principles for the Netherlands By the application of EN 599-1, wood preservatives can be admitted into one or more usage classes, defined in the European standard EN The certification structure for wood preservatives in the Netherlands, in accordance with these usage classes, is shown in tables 1 and 2. In order to obtain a Certificate of Approval, a product shall demonstrate its effectiveness in accordance with the requirements described in European standard EN 599-1, for each usage class for which an effective working is claimed. The stated requirements also take account of the method of application of the substance (immersion or vacuum/pressure) and the properties of the timber for which the substance is to be used (coniferous or deciduous timber). The criteria for evaluating the effectiveness of a wood preservative encompass both the basic tests that are required within the framework of EN (table 2), and the specific tests that are justified within the framework of the local biological risks present in our areas. EN stipulates that tests should be carried out using the formulated product. The complete results of these tests allow the critical value for each desired usage class to be calculated, which gives the minimum dosage of the product necessary to ensure complete protection of the reference timber used in the biological laboratory tests. In addition to the evaluation of the laboratory test results, field tests in usage situations and the details of permits issued in other countries will also be used. The results of practical tests shall usually be accorded greater weight than the results of laboratory tests. The Certificate of Approval states the minimum requirements per usage class, as well as the usage classes for the substance to be place don the BGS list of approved wood preservatives. The critical values shall then be converted into minimum amounts of the product that shall be applied in an industrial method in the protection zone of the wood. These values will be based on the 90% reliability lower limit of the average of the most critical fungus from the laboratory tests, or on the 90% reliability lower limit of the average of field tests. An example of the calculation is given in section , where a similar approach is used for the determination of the degree of fixation to be achieved. These minimum retentions are determined as a function of the properties of the product, the industrial treatment technique used, the ultimate usage of the wood and its particular properties. The EN standard is based on tests with pine sapwood. For the calculation of the minimum retention of less permeable types of wood a factor of 1,5 is employed for usage classes 3 and 4. Page 9 of 26

10 5.1.1 Characterizing and naming In order to be admitted in one or more of the usage classes a product shall: be able to protect the timber against biological degradation processes for a significant period (at least 10 years) 1) ; The recommendations stated in EN 460 in respect of the durability of timber in the various usage classes shall be used as a guide line; be offered in the form of a paste, a solution / aqueous emulsion ready for use / concentrated or a ready-for-use organic dilution; be applied in an industrial installation; penetrate into the timber Requirements for the effectiveness of preservatives The preventive preservatives are to be distinguished in their area of application. The requirements to be complied with in order to be allowed in a certain usage class are given in table Demonstrating the effectiveness The overview of the standardized tests by which the effectiveness of a preservative in a usage class can be demonstrated is given in table 2. When the file deviates from these requirements a WPEC test of the value of the file follows, taking into account the other statements in this Basis of Assessment. 1) The duration of treated timber depends on various factors such as timber quality, method of treatment, preservative, process, retention, the circumstances of use (temperature, moisture), mechanical damage or processing. The desired life depends on the type of application: roof construction in areas with risk of long-horned beetles shall have a longer life than a border partition in the garden, a carport longer than a pergola. The necessity of a long (longer) life is influenced by an assessment of the costs of early replacement or curative treatment of decay (and the technical possibilities thereto) and the safety risks for persons or constructions that occur in case of early decay. For e.g. railway sleepers, marina s and sheet piling require other requirements than for rabbit hutches or bird boxes. The assessment of the medium effectiveness shall be a result of more factors than only the intrinsic properties of the preservative. Page 10 of 26

11 SKH PUBLICATION dd TABLE 1: Usage class(es), applications and types of deterioration and requirements for the effectiveness of the preservatives (adapted from EN 599) Usageclass (EN 335) 1 2 Usage situation Timber in interior applications in permanently dry surroundings (relative humidity lower than 70%) Timber not in contact with the soil and not exposed to weather conditions and leaching. Temporary wetting possible. Timber under cover 3 Timber exposed to condensation or weather conditions, but not in contact with the soil 4 5 Timber in permanent contact with soil (water) contact or fresh water contact Timber in permanent saline water contact Risks Insects Decay Blue stain risk if sapwood is present and for timber species with no outlined sapwood Type examples no risk no risk interior features (furniture, panelling, parquet) in areas where the moisture content in the timber is permanently lower than 20% major risk (sapwood) low risk Low risk if finish is not present steeply angled roof timbers, timber frame elements. Glued laminated elements in interior applications. Occasionally >20% moisture content risk (sapwood) risk risk façade joinery, garden timber, solid or glued/laminated timber in poor hygrothermal conditions (wet areas, cold flat roofs) risk for section in contact with the air (sapwood) risk for section in contact with the air (sapwood) high risk enforced by soft rot high risk especially of soft rot risk for section for section in contact with air risk for section in contact with the air Product requirements: Ip = preventive action against wood insects Pp = preventive action against fungi causing wood rot BL = preventive action against blueing W = resistance against leaching by weather conditions E = resistance against leaching in ground contact and preventive action against soft rot M =.preventive action against marine organisms play equipment, masts, garden poles or solid or glued/laminated timber in contact with the ground, garden timber with ground/grass contact, sheet piling, timber for cooling towers Minimum requirements Ip Ip + Pp Additional termites BL + termites Pp + W Ip + BL + termites Pp + W + E Ip + BL + termites sea defences, jetties, timber for breakwater Pp + W + E + M Ip + BL

12 TABLE 2. Overview of the required biological tests to be executed on the formulated preservative Usage class (EN 335) EN 113 (1) EN 152 (3) EN 330 (4) part 1 part 2 Fungicidal effects according to: ENV Insecticide effects according to: ENV ENV (5) (6) EN 252 EN 46 EN 47 EN 49 EN ( 73) ( 73) ( 73) ( 73) ( 73) ( 73) ( 73) ( 73) ( ) ( ) - - ( 73) ( 73) ( 73) - ( 73) ( 73) CV7 CV84 - ( ) ( ) ( ) ( 73) ( 84) ( 73) ( 84) - CV73 CV84 - ( ) (2) ( 73) ( 84) ( 73) ( 84) 118 Test on effects against marine organisms acc. to EN 275 ( 73) ( 84) - ( 73) ( 84) - 5 CV73 CV84 - ( ) (2) = compulsory test ( ) = optional test, is required when admission fort his application is asked for - = no test required 73 = EN 73 test 84 = EN 84 test CV = Coriolus versicolor (1) EN 113 λ for usage class 2 the tests on the formulated product are only requested on 2 cubic rot fungi that are most resistant in respect of the fungicide used active matter (to be verified in view of the test report). λ for the usage classes 3, 4 and 5 an additional test is requested with Coriolus versicolor, to be executed on softwood, beech or both (as desired). (2) Only tests on active matter on 2 different test fields. (3) When test EN 152 (2) is executed than test EN 152 (1)is not required (for pine sapwood). (4) When effectiveness is claimed for the treatment of timber for window frames an EN 330 shall be submitted. (5) When effectiveness is claimed for the treatment of wood-based panels an EN test shall be submitted. (6) When submitting a current EN 252 of at least 5 years an ENV 807 is not compulsory. Page 12 of 26

13 SKH PUBLICATIE d.d replaces Beoordelingsgrondslag houtverduurzamingsmiddelen Additional requirements Demonstrating the suitability for immersion treatments Usage classes 1, 2 and 3: absorption- and penetration test in laboratory. The suitability of a product for the treatment of timber by means of the immersion method should be demonstrated by a laboratory test that indicates sufficient absorption and penetration. The test should be carried out on short planks of the desired timber of 20 mm x 120 mm, sealed on the sides perpendicular to the grain. The time that is necessary for attaining the required absorption and penetration (per usage class) should be registered Demonstrating sufficient depth of penetration The applicant should propose a reliable method by which the preservation company can establish the required depth of penetration of the substance in conformity with TR (2002) / CEN TC38 or chemical analysis, and in each case falling within the requirements as stated in BRL Demonstrating sufficient fixation properties Every active ingredient in the wood preservative shall be subjected to a preliminary investigation concerning the establishment of the degree of fixation. The preliminary investigation consists of standing tests carried out in accordance with NEN 7345 (whereby the leach water is not acidified) and/or OECD/OCDE 313 (16 th October 2007), supplemented with an incompany test. All active ingredients are to be analysed. At least 3 tests 1 are carried out for each process-product combination. This is necessary in order to be able to draw well-founded conclusions. SKH shall, on the basis of all preliminary investigation,, having been advised by the Wood Preservatives Evaluation Committee (WPEC) determine a limit value for each active ingredient in the wood preservative. For each active ingredient only one limit value is determined, irrespective of the wood preservative in which it will be used. That means that for the determination of this limit, the files of all wood preservatives in which this ingredient is present are carried off. The point of departure when determining the limit value is that it shall be achievable within reason with the best available technique. This is being determined by the WPEC. As basic value is employed that the degree of fixation shall be at least 75% If it is claimed that the substance with the prescribed subsequent treatment also meets the requirements as stated in the International Standard for Phytosanitary Measures (ISPM 15) proof of this should be supplied so that it can be stated on the Certificate of Approval. 1 A greater number of tests takes care of a strong increase of the 90% reliability lower limit; see the example under calculations 90%-reliability lower limit.

14 5.1.4 Provisional Certificate of Approval with regard to EN 252 respectively ENV 12037/ENV A timber preservative can be given a provisional Certificate of Approval without the results of a long-term test being available. A long-term test is The retentions shall be evaluated with reference to the (interim) results after 3 years and (final) results after 5 years. A provisional Certificate of Approval is therefore valid for a maximum of 2,5 years respectively 5,5 years after its issue. The field tests shall include the full spectrum of microbial deterioration with at least brown rot and soft rot. The effectiveness against brown rot (Basidiomycetes) for Usage class 4 according to EN 252 shall be carried out in test fields that are known for their brown rot dominance. The effectiveness against soft rot in accordance with EN 252 shall be carried out in test fields that are known for their soft rot dominance. Dominance of the test fields is defined by the primary attack of the test stakes or the reference tasks by respectively brown rot or soft rot. Field tests (such as the so-called churchyard test: EN252) have in practice a duration of 10 years. The results thereof are submitted to the WPEC annually or at least after respectively 3, 5, 7 and 10 years, and not later than 4 months after the inspection date. On the basis of the interim evaluations can, if necessary, the required retention of a preservative be adjusted. (Herewith can be achieved that available long-term results can be used actively for the evaluation of the effectiveness. It can generally be said of a churchyard test that the life span obtained corresponds with about a double value in practice. A 10-year churchyard test gives therefore an indication for 20 years of practical application. The field test results shall ultimately be definitive for the retention to be evaluated, and if necessary shall take the place of retentions on the basis of laboratory tests. For as long as no long-term field test results are available, a correction of 1/fixation degree shall be applied to the prescribed retention. Page 14 of 26

15 6. Normative references concerning wood preservatives Standard Year Title 1993 Wood preservatives Determination of the protective effectiveness against Lyctus Brunneus (Stephens) Part 1: Application by surface treatment (laboratory method) 1994 Wood preservatives Determination of the protective effectiveness against Lyctus brunneus (Stephens) Part 2: Application by impregnation (laboratory method) 2005 Wood preservatives Determination of the protective action against recently hatched larvae of Hylotrupes bajulus (Linnaeus) Part 1: Application by surface treatment (Laboratory method) 2006 Wood preservatives Determination of the protective effectiveness against recently hatched larvae of Hylotrupes bajulus (Linnaeus) Part 2: Ovicidal effect (Laboratory method) 2005 Wood preservatives Determination the toxic values against larvae of Hylotrupes bajalus (Linnaeus) - (Laboratory method) 2005 Wood preservatives Determination of the curative action against larvae of Anobium punctatum (De Geer) - (Laboratory method) 2005 Wood preservatives Determination of the protective effectiveness against Anobium punctatum (De Geer) by egg-laying and larvae survival Part 1: Application by surface treatment (Laboratory method)) 2005 Wood preservatives Determination of the preventive effectiveness against Anobium punctatum (De Geer) by egg-laying and larvae survival Part 2: Application by impregnation (Laboratory method) 1990 Wood preservatives Accelerated ageing of treated wood prior to biological testing Evaporative ageing procedure) 1997 Wood preservatives Accelerated ageing of treated timber prior to biological testing Leaching method 2004 Wood preservatives Test method for determining the preventive effectiveness against wood destroying basidiomycetes Determination of the toxic values 2005 Wood preservatives Determination of toxic values against Recticulitermes species (European termites) - (Laboratory method) 2005 Wood preservatives Determination of the protective effectiveness against Reticulitermes species (European termites) - (Laboratory method) 1991 Wood preservatives Test methods Laboratory method for determining the protective effectiveness of a preventive treatment against blue stain in processed timber Part 1: Application by brushing 1991 Wood preservatives Test methods Laboratory method for determining the protective effectiveness of a preventive treatment against blue stain in processed timber Part 2: Application by methods other than brushing 2003 Wood preservatives General directives for sampling and preparation for the testing of wood preservatives and treated timber Page 15 of 26

16 Standard EN NVN-ENV 807 (R) Year Title 1991 Wood preservatives Determination of the relative protective effectiveness in ground contact Field test method 1993 Wood preservatives Determination of the preventive effectiveness against marine borers 1994 Wood preservatives Test method in the field for the determination of the relative protective effectiveness of a wood preservative for use under a protective layer and not in contact with the soil L-construction method 2006 Durability of wood and wood-based products Definition of use class Part 1: General 2006 Durability of wood and wood-based products Definition of use classes - Part 2: Solid timber 1995 Durability of wood and wood-based products Definition of risk classes for biological attack Part 3: Application on wood-based sheet material 1994 Durability of wood and wood-based products Natural durability of solid timber Part 1: Directive for the principles of the testing and classification of the natural durability of timber 1994 Durability of wood and wood-based products Natural durability of solid timber Part 2: Directive for the natural durability and treatability of selected wood species of importance in Europe 2007 Durability of wood and wood-based products Preservative-treated solid wood Part 1: Classification of preservative penetration and retention 2007 Durability of wood and wood-based products Preservative-treated solid timber Part 2: Directive for the sampling and the analysis treated wood 1993 Wood preservatives Determination of the curative effectiveness in preventing emergence of Anobium punctatum (De Geer) 1994 Durability of wood and wood-based products Natural durability of solid timber Directive for the durability requirements for wood to be used in hazard classes 1996 Durability of wood and wood-based products - Performance of preventive wood preservatives as determined by biological tests Part 1: Specifications according to hazard class 1995 Durability of wood and wood-based products Performances of wood preservatives as determined by biological tests Part 2: Classification and labelling 2001 Wood preservatives Determination of the toxic effectiveness against soft rotting micro-fungi and other soil inhabiting micro-organisms 1995 Wood preservation Creosote and creosoted timber Methods of sampling and analysis Part 1: Procedure for sampling creosote 1996 Wood preservation Creosote and creosoted timber Methods of sampling and analysis Part 2: Procedure for obtaining a sample of creosote from creosoted timber for subsequent analysis Page 16 of 26

17 Standard NVN-ENV 1390 (R) Year Title 1997 Wood preservation Creosote and creosoted timber - Methods of sampling and analysis Part 3: Method for the determination of the benzo(a)pyreen content in creosote 1995 Wood preservatives Creosote and creosoted timber Methods of sampling and analysis Part 4: Determination of the water-extractable phenols content of creosote 1995 Wood preservatives Determination of curative action against Hylotrupes bajulus (Linnaeus) larvae Laboratory method NEN Leaching characteristics of solid earthy and stony building and waste materials Leaching tests Determination of the leaching of inorganic components from building and monolithic waste materials with the diffusion test NPR- CEN/TS (R) NVN-ENV (R) ENV (R) OECD/ OCDE Wood preservatives Field test method for determining the relative protective effectiveness of a wood preservative exposed out of ground contact Horizontal lap-joint method 2002 Durability of wood and wood-based products Wood-based panels Method of test for determining the resistance against wood-destroying basidimycetes 1997 Durability of wood and wood-based products Assessment of the protective effectiveness of a fungicidal in masonry to prevent the growth of Serpula lacrymans (Schuhmacher ex Fries) S.F. Gray in wood 1998 Durability of wood and wood-based products Preservative-treated solid wood Determination of the penetration and retention of creosote in treated wood 2007 Estimation of Emissions from Preservative Treated Wood to the Environment: Laboratory Method for Wooden Commodities that are not Covered and are in Contact with Fresh Water or Seawater (R) = standard is in the process of being revised Page 17 of 26

18 Appendix 1: Form for application of a Certificate of Approval Undersigned (name of the company):... requests the BHM to subject the product, being subject of the attached file (in twofold, in a sealed envelop, directed at BHM) mentioned hereunder) to the BHMprocedure. Full name of the product:... Company manufacturing the product (name and address): Company marketing the product (holder of authorization) (name, address, telephone number, trade register): The holder of the authorization, mentioned above, undertakes unconditionally to: - accept the regulations of the BHM, having taken note thereof; - passing on of the questions asked by BHM, through the producer of the product, to the laboratories that have provided the reports of the tests; - granting permission to the laboratories by the producer to supply confidential information directly to the BHM concerning the research data mentioned in the file and in the reports and the possible additional research results concerning these data and reports. Page 18 of 26

19 The company (name):... Manufacturing the product, disposes of: - a laboratory for chemical control, supervised by (mane and title(s): - a laboratory for biological control, supervised by (name and title(s): Full address(es) of this (these) laboratory(ies): Drawn up at....., the... in name of the holder of the authority Signature:... Name and function:... Page 19 of 26

20 Appendix 2: Application documents for a Wood Preservation Certificate of Approval Version 2006 This file consists of three parts: part 1 part 2 part 3 : description of the product : active matter or pre-formulation : formulated product / ready for use Page 20 of 26

21 PART 1: DESCRIPTION OF THE PRODUCT (Not confidential) Applicant :... Manufacturer or formulator :... Commercial name of product : Statement of approval 1 : no.... dated:... (copy in appendix) 1. Certificate of Approval requested for the marked usage classes and methods *): VD: vacuüm-druk VD VD VD VD VD D D D * VD = vacuum pressure D = immersion 3 Nature of the product GIFAP code 1.1 Organic products Applying product undiluted AL Solution in organic solvent OS Aqueous solution (emulsion) EM Solving the extract in water Emulsified extract EC Soluble extract SL Concentrated suspension SC 3.2 Mineral salts Pasta PA Soluble extract SL 1 Issued by the Board for the Authorization of Plant Protection Products and Biocides, or the equivalent thereof in another EU member state For an application a proof of Independence is sufficient. A copy of a valid Statement of Approval shall, at the time of issuing the declaration, be submitted.. Page 21 of 26

22 2. Active agents Active agents concentration [% m/m] 2.1 Concentration(s) or proposed dilution factor(s) VD D 4.2 Retention in the penetration zone recommended by the manufacturer (according to EN 599) All methods (kg/m 3 ) *) Timber species easy to impregnate NP1 NP2 NP3 NP5 NP6 Timber species difficult to impregnate NP1 NP1 NP1 NP2 -- *) kg agent (extract) per m 3 penetration zone in the timber (critical value) 3. Density (20 C):... kg/m 3 (or g/ml) 4. Appendices: Copy of the certificate of approval and the approved label. Copy of all approvals and/or certificates of other countries. Process description of the treatment Process description of the post-treatment (fixation). Description of control of penetration depth Description of control of concentration (relation with temperature) Instruction for the control of fixation Instruction for the control of retention Date Signature of the applicant Page 22 of 26

23 PART 2: PURE ACTIVE MATTER ON PRE-FORMULATION (confidential) 1. Nomenclature: 1.1. IUPAC: generic name Methods of analysis: 2.1. on formulation on treated timber... Page 23 of 26

24 PART 3: COMPLETE COMPOSITION OF FORMULATED PRODUCT 1. Nomenclature and concentration of all agents used (Statement of Approval) 2. Tests to be carried out 2.1. Biological tests: see overview table Penetration tests: test CEN TC 38 / TR (2002) or chemical analysis Fixation test 64-day position test in accordance with NEN 7345 (whereby the leached water is not acidified) supplemented with an in-company test. Page 24 of 26

25 Appendix 3: Specimen of Suitability Declaration CERTIFICATE OF APPROVAL WOOD PRESERVATIVE issued to:... (company) for the preservative:... (trade name) that on... it has been legally allowed according to authorisation no.:. to (date) This wood preservative complies with the requirements for an effective treatment executed by companies that have been certified in accordance with BRL 0601, under the following circumstances: Usage class Wood attacking fungi Preservative is effective against: Insects Blue stain Termites Marine organisms Minimum concentration(s) or diluting factor(s) VD D Required retention in the penetration zone (according to EN 599) All methods (kg/m 3 ) *) Types of timber easy to impregnate NP1 NP2 NP3 NP5 NP6 Types of timber difficult to impregnate NP1 NP1 NP1 NP2 -- *) kg of substance (concentrate) per m 3 penetration zone-timber Page 25 of 26

26 Process requirements for the treatment: see BRL 0601 and in so far supplementary or otherwise : attached document with the title:... Subsequent treatment : natural fixation... according to document... climate-controlled area... according to document... saturated steam... according to document... other method... according to document... Instruction for determination of penetration depth: according to attached document with the title... Instruction for concentration test according to attached document with the title... Instruction for fixation test according to attached document with the title:... Instruction for retention test according to the attached document with the title... This declaration has been issued on...and is valid until... (date) Date: Place: Signature of director of SKH: Page 26 of 26