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1、BRITISH STANDARD BS EN ISO 11341:1998 BS 3900-F14: 1995 Incorporating Amendment No. 1 to BS 3900-F14:1995 (renumbers the BS as BS EN ISO 11341:1998) Paints and varnishes Artificial weathering and exposure to artificial radiation Exposure to filtered xenon-arc radiation The European Standard EN ISO 1
2、1341:1997 has the status of a British Standard ICS 87.040 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:58:36 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN ISO 11341:1998 This British Standard, having been prepared under the direction of the Materials and Chemicals Sector Board (I/-),
3、 was published under the authority of the Standards Board and comes into effect on 15 February 1995 BSI 05-1999 The following BSI references relate to the work on this standard: Committee reference STI/10 Draft for comment 92/54598 DC ISBN 0 580 23668 4 Committees responsible for this British Standa
4、rd The preparation of this British Standard was entrusted to Technical Committee STI/10, Test methods for paints, upon which the following bodies were represented: British Coatings Federation Ltd. European Resin Manufacturers Association Health and Safety Executive Ministry of Defence National Centr
5、e of Tribology Oil and Colour Chemists Association Paint Research Association Titanium Pigment Manufacturers Technical Committee Amendments issued since publication Amd. No.DateComments 9931March 1998Indicated by a sideline in the margin March 1998Amendment reprinted due to a technical error License
6、d Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:58:36 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN ISO 11341:1998 BSI 05-1999i Contents Page Committees responsibleInside front cover National forewordii Foreword2 1Scope3 2Normative references3 3Definitions3 4Principle4 5Required supplementary
7、information4 6Apparatus4 7Sampling6 8Preparation of test panels6 9Procedure7 10Expression of results8 11Test report8 Annex A (normative) Required supplementary information9 Annex B (informative) Irradiance values for total solar radiation and spectral transmittance of window-glass9 Annex ZA (normati
8、ve) Normative references to international publications with their relevant European publications11 Table 1 Relative spectral energy distribution for artificial weathering (method 1)4 Table 2 Relative spectral energy distribution for exposure to artificial radiation under windowglass (method 2)5 Tabl
9、e 3 Test panel wetting cycles7 Table B.1 Total solar spectral irradiance at sea level9 Table B.2 Transmittance through 3 mm-thick window-glass10 List of referencesInside back cover Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:58:36 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN ISO 11
10、341:1998 ii BSI 05-1999 National foreword This standard has been prepared by Technical Committee STI/10. It is the English language version of EN ISO 11341:1997 Paints and varnishes Artificial weathering and exposure to artificial radiation Exposure to filtered xenon-arc radiation published by the E
11、uropean Committee for Standardization (CEN). It is identical with ISO 11341:1994 published by the International Organization for Standardization (ISO). Cross-references The Technical Committee has reviewed the provisions of ISO 1514:1993, to which normative reference is made in the text, and has dec
12、ided that they are acceptable for use in conjunction with this standard. ISO 1514:1984 is technically equivalent to BS EN 605:1992 Paints and varnishes, standard panels for testing. It is planned that ISO 1514:1993 is adopted as a European Standard as a revision of EN 605:1992. A British Standard do
13、es not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. International standardCorresponding British Standard BS 3900 M
14、ethods of test for paints ISO 1512:1991Part A1:1992 Sampling (Identical) ISO 1513:1992BS EN ISO 1513:1995 Paints and varnishes Examination and preparation of samples for testing (Identical) ISO 2808:1991Part C5:1992 Determination of film thickness (Identical) ISO 4628-1:1982Part H1:1983 Designation
15、of intensity, quantity and size of common types of defect: general principles and rating schemes (Identical) ISO 4628-2:1982Part H2:1983 Designation of degree of blistering (Identical) ISO 4628-3:1982Part H3:1983 Designation of degree of rusting (Identical) ISO 4628-4:1982Part H4:1983 Designation of
16、 degree of cracking (Identical) ISO 4628-5:1982Part H5:1983 Designation of degree of flaking (Identical) ISO 4628-6:1990Part H6:1991 Rating of degree of chalking by tape method (Identical) ISO 3696:1987BS 3978:1987 Specification for water for laboratory use (Identical) Summary of pages This document
17、 comprises a front cover, an inside front cover, pages i and ii, the EN ISO title page, pages 2 to 12, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside fron
18、t cover. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:58:36 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 11341 November 1997 ICS 87.040 Descriptors: Paints, varnishes, coatings, tests, artificial weathering tests, artificial light t
19、ests, testing conditions English version Paints and varnishes Artificial weathering and exposure to artificial radiation Exposure to filtered xenon-arc radiation (ISO 11341:1994) Peintures et vernis Vieillissement artificiel et exposition aux radiations artificielles Exposition aux radiations filtre
20、s dune lampe arc au xnon (ISO 11341:1994) Beschichtungsstoffe Knstliches Bewittern und knstliches Bestrahlen Beanspruchung durch gefilterte Xenonbogenstrahlung (ISO 11341:1994) This European Standard was approved by CEN on 30 October 1997. CEN members are bound to comply with the CEN/CENELEC Interna
21、l 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 references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member.
22、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 CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are
23、 the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation
24、Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1997 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members Ref. No. EN ISO 11341:1997 E Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:58:36 GMT+00:00
25、2006, Uncontrolled Copy, (c) BSI EN ISO 11341:1997 BSI 05-1999 2 Foreword The text of the International Standard from Technical Committee ISO/TC 35, Paints and varnishes, of the International Organization for Standardization (ISO) has been taken over as a European Standard by Technical Committee CEN
26、/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 May 1998, and conflicting national standards shall be withdrawn at the lates
27、t by May 1998. According to CEN/CENELEC Internal Regulations, the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzer
28、land and the United Kingdom. Endorsement notice The text of the International Standard ISO 11341:1994 has been approved by CEN as a European Standard without any modification. NOTENormative references to International Standards are listed in Annex ZA (normative). Licensed Copy: sheffieldun sheffield
29、un, na, Mon Nov 20 02:58:36 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 11341:1994(E) BSI 05-19993 1 Scope This International Standard is one of a series of standards dealing with the sampling and testing of paints, varnishes and related products. It specifies a test method for assessing either t
30、he resistance of paint coatings to artificial weathering or the resistance to light by exposure to artificial radiation. The standard describes the most important parameters and specifies the conditions to be used in the exposure apparatus. Provided the test conditions specified are strictly respect
31、ed, reproducibility is improved and an improved correlation is obtained between natural-weathering and artificial-weathering tests. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the ti
32、me of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO main
33、tain registers of currently valid International Standards ISO 1512:1991, Paints and varnishes Sampling of products in liquid or paste form. ISO 1513:1992, Paints and varnishes Examination and preparation of samples for testing. ISO 1514:1993, Paints and varnishes Standard panels for testing. ISO 280
34、8:1991, Paints and varnishes Determination of film thickness. ISO 3696:1987, Water for analytical laboratory use Specification and test methods. ISO 4628-1:1982, Paints and varnishes Evaluation of degradation of paint coatings Designation of intensity, quantity and size of common types of defect Par
35、t 1: General principles and rating schemes. ISO 4628-2:1982, Paints and varnishes Evaluation of degradation of paint coatings Designation of intensity, quantity and size of common types of defect Part 2: Designation of degree of blistering. ISO 4628-3:1982, Paints and varnishes Evaluation of degrada
36、tion of paint coatings Designation of intensity, quantity and size of common types of defect Part 3: Designation of degree of rusting. ISO 4628-4:1982, Paints and varnishes Evaluation of degradation of paint coatings Designation of intensity, quantity and size of common types of defect Part 4: Desig
37、nation of degree of cracking. ISO 4628-5:1982, Paints and varnishes Evaluation of degradation of paint coatings Designation of intensity, quantity and size of common types of defect Part 5: Designation of degree of flaking. ISO 4628-6:1990, Paints and varnishes Evaluation of degradation of paint coa
38、tings Designation of intensity, quantity and size of common types of defect Part 6: Rating of degree of chalking by tape method . CIE Publication No. 85:1989, Solar spectral irradiance. 3 Definitions For the purposes of this International Standard, the following, definitions apply: 3.1 ageing behavi
39、our the change in properties of a coating during artificial weathering or exposure to artificial radiation until a certain ageing criterion (see 3.3) is satisfied NOTE 1One measure of ageing is the radiant exposure H in the wavelength range below 400 nm or at a specified wavelength, e.g. 340 nm. The
40、 ageing behaviour of coatings exposed to artificial weathering, or to artificial radiation, depends on the type of coating, the conditions of exposure of the coating, the property selected for monitoring the progress of the ageing process and the degree of change of this property. 3.2 radiant exposu
41、re, H a measure of the radiant energy to which a test panel has been exposed, given by the formula H = E dt where H is therefore expressed in joules per square metre if the irradiance E is constant throughout the whole exposure time, the radiant exposure H is given simply by the product of E and t 3
42、.3 ageing criterion a given degree of ageing, corresponding to a specified or agreed degree of change in a selected property of the coating under test E is the irradiance, in watts per square metre; tis the exposure time, in seconds. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:58:36 GM
43、T+00:00 2006, Uncontrolled Copy, (c) BSI ISO 11341:1994(E) 4 BSI 05-1999 4 Principle Artificial weathering of coatings or exposure of coatings to filtered xenon-arc radiation is carried out in order to obtain the degree of change in a selected property after a certain radiant exposure H, and/or the
44、radiant exposure which is required to produce a certain degree of ageing. The properties selected for monitoring should preferably be those which are important for the practical use of the coatings. The properties of the coatings exposed are compared with those of unexposed coatings prepared from th
45、e same coating materials at the same time and in the same way (control specimens) or with those of coatings exposed at the same time whose behaviour during testing in exposure apparatus is already known (reference specimens). During natural weathering, solar radiation is considered to be the essenti
46、al cause for the ageing of coatings. The same is valid for exposure to radiation under glass. Therefore, in artificial weathering and exposure to artificial radiation, particular importance is attached to the simulation of this parameter. The xenon-arc radiation source used is therefore fitted with
47、one of two different filter systems, designed to modify the spectral distribution of the radiation produced so that, with one of the filters, it matches the spectral distribution, in the ultraviolet and visible regions, of solar radiation (method 1) and, with the other filter, it matches the spectra
48、l distribution, in the ultraviolet and visible regions, of solar radiation filtered by 3-mm-thick window-glass (method 2). Two spectral energy distributions are used to describe the irradiance values and permitted deviations of the filtered test radiation in the ultraviolet range below 400 nm. In ad
49、dition, CIE Publication No. 85 is used for the specification of the irradiance in the range up to 800 nm because only in that range can the xenon-arc radiation be adapted to match solar radiation sufficiently well. During testing in exposure apparatus, the irradiance E may change due to ageing of the xenon-arc lamp and the optical-filter system. This occurs particularly in the ultraviolet region which is photochemically important for polymeric materials. Therefore, measurements are made