1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58determination of infrared reflectanceThe European Standard EN 4592:2006 has the status of a British
2、 StandardICS 49.040Aerospace series Paints and varnishes Test method for BRITISH STANDARDBS EN 4592:2006BS EN 4592:2006This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 November 2006 BSI 2006ISBN 0 580 49534 5Amendments issued since publicat
3、ionAmd. No. Date CommentsThis publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.National forewordThis British Standard was published by
4、 BSI. It is the UK implementation of EN 4592:2006.The UK participation in its preparation was entrusted by Technical Committee ACE/65, Non-metallic materials for aerospace purposes (excluding textiles), to Subcommittee ACE/65/-/3, Paints.A list of organizations represented on ACE/65/-/3 can be obtai
5、ned on request to its secretary.EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 4592October 2006ICS 49.040English VersionAerospace series - Paints and varnishes - Test method fordetermination of infrared reflectanceSrie arospatiale - Peintures et vernis - Mthode dessaipour rflectance infrarougeLuf
6、t- und Raumfahrt - Anstrichstoffe - Prfmethode zurMessung der InfrarotremissionThis European Standard was approved by CEN on 21 July 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national
7、 standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any othe
8、r language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, Franc
9、e,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 NORMALISATIONEUROPISCHES KOMITEE FR NORMU
10、NGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2006 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 4592:2006: E2 Contents Page Foreword3 1 Scope 4 2 Normative references 4 3 Terms and definitions .4 4 Principle4 5 Apparatu
11、s .4 6 Specimen 5 7 Procedure .5 8 Designation 6 9 Test report 6 EN 4592:20063 Foreword This document (EN 4592:2006) has been prepared by the Aerospace and Defence Industries Association of Europe - Standardization (ASD-STAN). After enquiries and votes carried out in accordance with the rules of thi
12、s Association, this Standard has received the approval of the National Associations and the Official Services of the member countries of ASD, prior to its presentation to CEN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by en
13、dorsement, at the latest by April 2007, and conflicting national standards shall be withdrawn at the latest by April 2007. 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 identi
14、fying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary
15、, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. EN 4592:20064 1 Scope This standard specifies the method of test for determining the infrared reflectance of paints
16、and varnishes. The test procedure determines the amount of energy reflected by the material in the range of wavelengths between 700 nanometres and 2 400 nanometres with respect to that of a standard reflectance material. The procedure is applicable to products intended for use in aerospace applicati
17、ons. 2 Normative references The following referenced documents are indispensable for 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. ISO 1513, Paints and
18、varnishes Examination and preparation of samples for testing. ISO 2808, Paints and varnishes Determination of film thickness. ISO 3270, Paints and varnishes and their raw materials Temperatures and humidities for conditioning and testing. ISO 15528, Paints, varnishes and raw materials for paints and
19、 varnishes Sampling. 3 Terms and definitions For the purposes of this standard, the following definitions apply. 3.1 infrared reflectance the proportion of the energy reflected by a specimen in relation to a defined standard material 4 Principle The reflectance of a specimen comprising a coated test
20、 panel is measured against that of reflectance standard in the 700 nm to 2 400 nm wavelength range. 5 Apparatus A recording spectrophotometer fitted with an integrating sphere which will meet the following requirements unless otherwise specified or agreed (see Table 1). EN 4592:20065 Table 1 Measure
21、ment range 700 nm to 2 400 nm minimum Wavelength accuracy 5 nm Measurement accuracy (700 nm to 2 100 nm) 2 % (2 100 nm to 2 400 nm) 8 % Bandpass 4 nm at 700 nm rising to a maximum of 14 nm at 2 400 nm Integrating sphere geometry (reference conditions in case of dispute) (10 2)/diffuse specular compo
22、nent included A reference material of known reflectance in the range 700 nm to 2 400 nm. 6 Specimen Take a representative sample of the product to be tested or of each component in the case of a multi-coat system as described in ISO 15528. Examine and prepare the sample for testing as described in I
23、SO 1513. The test panel shall be of a size suitable for the performance of the tests identified by this and the product standard. Coat the test panel with the test product as specified by the product standard. Dry/cure the coating for the time and under the conditions specified in the product standa
24、rd. The coating thickness, when determined using one of the non destructive procedures specified in ISO 2808 shall comply with the requirements of the product standard. Condition the test panels in accordance with ISO 3270 for a minimum of 16 hours and a maximum of 72 hours prior to testing. 7 Proce
25、dure 7.1 Operation Operate the spectrophotometer in accordance with the manufacturers recommendations for environmental conditions, method of operation and calibration if different from that below. 7.2 Calibration Place the reflectance standard over the reference port of the integrating sphere. Bloc
26、k the sample beam before it enters the integrating sphere using a suitable device and obtain a 0 % baseline in the specified wavelength range. Note that with some spectrophometers it may be possible to calibrate the baseline so that no correction is necessary to the sample spectrum. Remove the sampl
27、e port blocking device and place reflectance standards over both the reference and sample ports and obtain the 100 % baseline in the specified wavelength range. If the absolute reflectance spectrum is required, correct the spectrum to 100 % using the correction factors for the reflectance standard u
28、sed. EN 4592:20066 7.3 Measurement Replace the sample port reflectance standard with the test panel and record the sample reflectance spectrum over the specified wavelength range. If the absolute reflectance spectrum is required, correct the spectrum using the correction factors for the reflectance
29、standard used. If specified, compare the recorded spectrum with that of the comparison spectrum. 8 Designation EXAMPLE Description block DETERMINATION OF INFRARED REFLECTANCE Identity block EN4592 Number of the standard 9 Test report 9.1 Basic information The test report shall contain at least the f
30、ollowing information: a) all details necessary to identify the product tested; b) reference to this test standard; c) reference to the product standard; d) items of supplementary information (9.2); e) results of the test work in terms of the stated requirements; f) any deviation from the test method
31、 specified; g) date(s) of the test; h) name of operator. EN 4592:20067 9.2 Supplementary information In the performance of this test standard there is a requirement for supplementary information to be provided by the product standard for the material under test. This information consists of: a) subs
32、trate type and method of preparation; b) method of application of the coating including, where applicable, the duration and conditions of drying/curing between coats in the case of multi-coat systems; c) duration and conditions of drying/curing of the final coat before test; d) thickness of the dry
33、coating or combination of coatings in micrometres; e) wavelength range to be measured; f) instrument geometry if different from that defined in this standard; g) standard reflectance material to use; h) whether the spectrum is to be corrected to absolute reflectance; i) spectrum that the sample is t
34、o be compared to (if required). EN 4592:2006BS EN BSI389 Chiswick High RoadLondonW4 4AL4592:2006BSI British Standards InstitutionBSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is inco
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