DIN EN ISO 10890-2011 Paints and varnishes - Modelling of biocide release rate from antifouling paints by mass-balance calculation (ISO 10890 2010) German version EN ISO 10890 2010.pdf

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1、February 2011 Translation by DIN-Sprachendienst.English price group 9No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).IC

2、S 87.040!$mx“1748595www.din.deDDIN EN ISO 10890Paints and varnishes Modelling of biocide release rate from antifouling paints bymass-balance calculation (ISO 10890:2010)English translation of DIN EN ISO 10890:2011-02Beschichtungsstoffe Modell fr die Biozid-Auswaschrate von Antifouling-Beschichtungen

3、 durch Berechnungder Massenbilanz (ISO 10890:2010)Englische bersetzung von DIN EN ISO 10890:2011-02Peintures et vernis Modlisation du taux de lixiviation des biocides contenus dans les peintures antisalissurespar calcul du bilan massique (ISO 10890:2010)Traduction anglaise de DIN EN ISO 10890:2011-0

4、2www.beuth.deDocument comprises pagesIn case of doubt, the German-language original shall be considered authoritative.1302.11 DIN EN ISO 10890:2011-02 2 A comma is used as the decimal marker. National foreword This standard has been prepared by Technical Committee ISO/TC 35 “Paints and varnishes”, S

5、ubcommittee SC 9 “General test methods for paints and varnishes” (Secretariat: BSI, United Kingdom) in collaboration with Technical Committee CEN/TC 139 “Paints and varnishes” (Secretariat: DIN, Germany). The responsible German body involved in its preparation was the Normenausschuss Beschichtungsst

6、offe und Beschichtungen (Coatings and Coating Materials Standards Committee), Working Committee NA 002-00-07 AA Allgemeine Prfverfahren fr Beschichtungsstoffe und Beschichtungen. EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 10890 October 2010 ICS 87.040 English Version Paints and varnish

7、es Modelling of biocide release rate from antifouling paints by mass-balance calculation (ISO 10890:2010)Peintures et vernis Modlisation du taux de lixiviation des biocides contenus dans les peintures antisalissures par calcul du bilan massique (ISO 10890:2010) Beschichtungsstoffe Modell fr die Bioz

8、id-Auswaschrate von Antifouling-Beschichtungen durch Berechnung der Massenbilanz (ISO 10890:2010) This European Standard was approved by CEN on 14 October 2010. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard

9、the status of a national standard without any alteration. Up-to-date lists and bibliographical references 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, Fr

10、ench, German). A version in any other language made by translation under the responsibility of a 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, Bulgari

11、a, Croatia, 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 ST

12、ANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 10890:2010: EContents DIN EN ISO 10890:2011-0

13、2 EN ISO 10890:2010 (E) 2 Page Foreword3 Introduction .4 1 Scope 5 2 Principle5 3 Terms and definitions .6 4 Calculation and expression of results.6 4.1 Calculation of the estimated total mass of biocide released per unit area of antifouling paint film over the lifetime of the paint6 4.2 Calculation

14、 of the mean biocide release rate over the lifetime of the paint 8 4.3 Calculation of the 14-day cumulative biocide release .9 5 Test report 9 Bibliography 11 Foreword This document (EN ISO 10890:2010) has been prepared by Technical Committee ISO/TC 35 “Paints and varnishes” in collaboration with Te

15、chnical Committee CEN/TC 139 “Paints and varnishes” the secretariat of which is held by DIN. 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 April 2011, and conflicting national standards shall be

16、 withdrawn at the latest by April 2011. 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/CENELEC Internal Regulati

17、ons, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,

18、 Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 10890:2010 has been approved by CEN as a EN ISO 10890:2010 without any modification. DIN EN ISO 10890:2011-02 EN ISO 10890:2010 (E) 3 Introductio

19、n The actual release rate of biocides from antifouling paints on ships hulls into the environment will depend on many factors, such as ship operating schedules, length of service, berthing conditions, paint condition, as well as the temperature, salinity, pH, pollutants and biological community in a

20、 particular area. However, based on knowledge of the composition of the paint and its specified lifetime and application thickness, an estimate of the mean biocide release rate from an antifouling paint over its specified lifetime can be obtained by the mass-balance calculation method described in t

21、his International Standard. The calculation also allows an estimate to be obtained of the cumulative mass of biocide released over the first 14 days, and also the total mass of biocide released over the specified lifetime. This method is intended to provide estimates of the amount of biocide release

22、d into the environment that are more suitable for use in environmental risk assessments than the results of laboratory-based test methods, such as ISO 15181 (all parts)1, ASTM D64422and ASTM D69033. Biocide release rate data is a key input to the environmental risk assessment process for antifouling

23、 products, and so it is vital that the estimated biocide release rate that is used be both accurate and representative of the release rate to the environment in the relevant scenario and risk assessment case. In comparison with in situ biocide release rate values obtained by either direct or indirec

24、t measurements of the organotin and copper release rate from ships hulls and from measurements made on panels exposed in harbours, all available data indicate that the results obtained using this calculation method overestimate the release rates of biocides under environmentally relevant in-service

25、conditions. Published results demonstrate that the results of this calculation method are generally higher than direct in situ measurements of copper release rate from the hulls of harboured ships by a factor of about 4 or more for several commercial antifouling coatings4. A similar relationship is

26、expected to be found for other biocides. Where the results of this calculation method are used in the process of generating environmental risk assessments, producing environmental loading estimates or for regulatory purposes, it is most strongly recommended that the relationship between calculated r

27、elease rates and actual environmental inputs be taken into account to allow the most accurate and representative estimate of the biocide release rate from antifouling coatings under real-life conditions to be obtained. This can be accomplished through the application of appropriate correction factor

28、s4. DIN EN ISO 10890:2011-02 EN ISO 10890:2010 (E) 4 1 Scope This International Standard specifies a method for estimating the mean release rate of biocide from an antifouling paint over its entire lifetime (in-service period) using a mass-balance calculation. If required, the cumulative total relea

29、se of biocide over the first 14 days of the specified paint lifetime can also be calculated. This International Standard is applicable to any antifouling paint that releases a biocide. Where an antifouling paint releases, or is assumed to release, more than one biocide, the calculation can be repeat

30、ed to allow estimates of the release rate of each biocide to be obtained. The calculated estimate of the total amount of biocide released by the coating over its lifetime can be considered as a worst case for the maximum amount released to the environment, and so the calculated mean release rate val

31、ue should also be considered as the maximum possible mean release rate over the lifetime of the paint. The calculated estimates are suitable for use in general environmental risk assessments, and the application of appropriate correction factors will allow the most accurate and representative enviro

32、nmental risk assessment to be made in the relevant scenario and risk assessment case4. There are no minimum or maximum limiting values of release rate which restrict the use of this method. This International Standard is primarily directed towards the release of biocide from antifouling paints that

33、have been applied to ship and boat hulls. It can, however, also be used for estimating biocide release from antifouling paints that have been applied to other objects. 2 Principle The method is a generic empirical model of biocide release which is based on the underlying fact that the total amount o

34、f biocide released by an antifouling paint cannot exceed the amount of biocide which was originally present when the paint was manufactured and applied. In summary, the estimated mean biocide release rate over the lifetime of the paint is obtained by dividing the estimated mass of biocide that is re

35、leased per unit area of painted surface by the lifetime of the paint. The estimated total mass of biocide that is released per unit area is derived from the percentage by mass of biocidal ingredient in the paint formulation, the mass fraction of the biocide in the biocidal ingredient, the percentage

36、 volume solids of the paint as manufactured, the density of the paint as manufactured, the dry-film thickness of paint applied and the estimated percentage of biocide that is released from the paint over its specified lifetime. It is normally assumed that 90 % of the biocide is released over the lif

37、etime of the paint. A dataset of experimentally determined release rates for a range of biocides and antifouling paint types, measured using ISO 15181 (all parts)1, ASTM D51085, ASTM D64422and ASTM D69033, shows that the biocide release rate typically changes over the immersion period. Generally, th

38、e biocide release rate is highest in the period immediately following immersion of the paint film. An estimated value of the cumulative biocide release over the first 14 days can be obtained by applying an appropriate multiplier to the estimated mean biocide release rate over the lifetime of the pai

39、nt. Based on this typical behaviour, the default value of this multiplier is 30. DIN EN ISO 10890:2011-02 EN ISO 10890:2010 (E) 5 NOTE The calculation of the mean biocide release rate over the lifetime of the paint is independent of whether the release rate remains constant, falls, rises or varies i

40、n any regular or irregular way over the specified lifetime, including short-term changes in the release rate that arise in service for a vessel from alternating periods in motion and at rest. The calculated estimated release rate values are therefore most suited for use in environmental risk assessm

41、ents where the modelled environmental scenario accounts for the presence of multiple vessels at different points in their service life. 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 biocide biocidally active chemical element, compound or sp

42、ecies derived from a biocidal ingredient and released from an antifouling paint NOTE Also known as “active substance”. 3.2 biocidal ingredient substance in its supplied or manufactured state, including additives, impurities, by-products generated during production and degradation products generated

43、after production, used in an antifouling paint to exert a controlling effect on harmful organisms by chemical or biological means 3.3 dry-film thickness representative value of the mean thickness, after drying or curing, of an antifouling paint that is specified for application to a vessel or other

44、object to provide antifouling protection for the lifetime of the paint 3.4 lifetime of the paint representative value of the specified in-service period between planned painting and re-painting operations for a vessel or other object that is coated with the antifouling paint in question 4 Calculatio

45、n and expression of results 4.1 Calculation of the estimated total mass of biocide released per unit area of antifouling paint film over the lifetime of the paint Calculate the estimated total mass of biocide released per unit area of paint film over the lifetime of the paint, mrel, in micrograms pe

46、r square centimetre (gcm2), using Equation (1): aarelDFTNVVLawm = (1) where Lais the percentage of biocide that is released from the paint film during the lifetime of the paint; a is the mass fraction of biocide in the biocidal ingredient; wais the content of biocidal ingredient in the paint formula

47、tion as manufactured, in % by mass; is the density of the paint as manufactured, in kgdm3(gcm3); DFT is the dry-film thickness specified for the lifetime of the paint, in m; DIN EN ISO 10890:2011-02 EN ISO 10890:2010 (E) 6 NVVis the non-volatile-matter content (volume solids content) of the paint, i

48、n % by volume. This calculation is equivalent to multiplying the mass of biocide present per unit area of paint film by the percentage of biocide that is released over the lifetime of the paint (La). Based on experience of antifouling paints, a value of La= 90 % should be used to represent a realist

49、ic worst-case maximum amount of biocide released over the lifetime of the paint. This value may be decreased or increased in cases where a lower or higher percentage of biocide is released over the lifetime of the paint. The values for a, wa, , DFT and NVVwill depend on the particular composition of the paint and on its specified use characteristics. These values would normally be obtained from the paint supplier for any particular paint. EXAMPLE The calculation can be illustrated for the release of copper from the US Navy For