BS PD CEN TS 17108-2017 Non-destructive testing Lighting in penetrant and magnetic particle testing good practice《无损检测 渗透和磁粉检测中的照明 良好做法》.pdf
《BS PD CEN TS 17108-2017 Non-destructive testing Lighting in penetrant and magnetic particle testing good practice《无损检测 渗透和磁粉检测中的照明 良好做法》.pdf》由会员分享,可在线阅读,更多相关《BS PD CEN TS 17108-2017 Non-destructive testing Lighting in penetrant and magnetic particle testing good practice《无损检测 渗透和磁粉检测中的照明 良好做法》.pdf(32页珍藏版)》请在麦多课文档分享上搜索。
1、Non-destructive testing - Lighting in penetrant and magnetic particle testing, good practice PD CEN/TS 17108:2017 BSI Standards Publication WB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06 TECHNICAL REPORT RAPPORT TECHNIQUE TECHNISCHER BERICHT CEN/TR 17108 June 2017 ICS 19.100 English Versio
2、n Non-destructive testing - Lighting in penetrant and magnetic particle testing, good practice Essais non destructifs - Bonnes pratiques dclairage lors des contrles par ressuage et par magntoscopieZerstrungsfreie Prfung - Beleuchtung in Eindring- und Magnetpulverprfung, bewhrte Verfahren This Techni
3、cal Report was approved by CEN on 28 May 2017. It has been drawn up by the Technical Committee CEN/TC 138. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany,
4、Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE
5、 FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. CEN/TR 17108:2017 E National foreword This Published Document is the UK implementation of CEN/TS 17108:2
6、017. The UK participation in its preparation was entrusted to Technical Committee WEE/46, Non-destructive testing. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contrac
7、t. Users are responsible for its correct application. The British Standards Institution 2017 Published by BSI Standards Limited 2017 ISBN 978 0 580 97009 2 ICS 19.100 Compliance with a British Standard cannot confer immunity from legal obligations. This Published Document was published under the aut
8、hority of the Standards Policy and Strategy Committee on 30 September 2017. Amendments/corrigenda issued since publication Date Text affected PUBLISHED DOCUMENT PD CEN/TS 17108:2017 TECHNICAL REPORT RAPPORT TECHNIQUE TECHNISCHER BERICHT CEN/TR 17108 June 2017 ICS 19.100 English Version Non-destructi
9、ve testing - Lighting in penetrant and magnetic particle testing, good practice Essais non destructifs - Bonnes pratiques dclairage lors des contrles par ressuage et par magntoscopieZerstrungsfreie Prfung - Beleuchtung in Eindring- und Magnetpulverprfung, bewhrte Verfahren This Technical Report was
10、approved by CEN on 28 May 2017. It has been drawn up by the Technical Committee CEN/TC 138. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary
11、, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN
12、-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. CEN/TR 17108:2017 E PD CEN/TS 17108:2017CEN/TR 17108:2017 (E) 2 Contents Page European foreword . 3 1 Scope 4 2 Normati
13、ve references 4 3 Terms and definitions . 4 4 Fluorescent techniques, inspection booth, lights and visual ergonomics 5 4.1 Lights: UV-A beam spectral characteristics . 5 4.1.1 General 5 4.1.2 Symmetry of the spectrum around the centroid wavelength . 5 4.1.3 Unwanted visible light of the UV-A spectru
14、m: limitation of the emission 380 nm 6 4.1.4 Radiometric specifications: UV-A/violet ratio . 6 4.1.5 Thermal management (cooling), sustaining performances 8 4.2 UV-A beam geometrical characteristics 9 4.2.1 General 9 4.2.2 Geometric consideration for use . 9 4.2.3 Large parts 10 4.2.4 Small parts 10
15、 4.3 Identification and repair . 11 4.4 Health and safety when using UV-A sources 11 4.4.1 Precautions for use 11 4.4.2 Warning panels . 11 4.4.3 Eyewear . 13 4.5 Visual ergonomics 14 4.5.1 General . 14 4.5.2 Visual adaptation, general 14 4.5.3 Visible light before inspection . 15 4.5.4 Visible ligh
16、t during inspection 16 4.5.5 Visible light after inspection: focus recovery/preserving 17 4.5.6 Transition zones: avoid visual tiredness . 18 4.5.7 General irradiance . 18 5 Colour and luminous contrast method . 18 5.1 White beam spectral characteristics . 18 5.2 Viewing of coloured materials: choos
17、ing the source. 19 5.3 Precautions for use 20 5.3.1 High-luminance type LED sources . 20 5.3.2 Eyewear . 22 5.4 Illuminance levels of the inspection area and of the surrounding area: visual ergonomics . 23 5.4.1 General . 23 5.4.2 Fixed inspection areas 23 5.4.3 On-site inspections 23 5.4.4 Case stu
18、dy . 23 6 Measurements . 25 6.1 Radiometers and luxmeters characteristics/specifications 25 6.2 Irradiance measurement . 25 7 Actinic Blue . 26 PD CEN/TS 17108:2017CEN/TR 17108:2017 (E) 3 European foreword This document (CEN/TR 17108:2017) has been prepared by Technical Committee CEN/TC 138 “Non- de
19、structive testing”, the secretariat of which is held by AFNOR. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights. PD CEN/TS 17108:2017CEN/TR 17108:2017
20、(E) 4 1 Scope This Technical Report describes the good practices of lighting under UV-A radiation and in white light as used for penetrant testing (PT) and magnetic particle testing (MT) for improved probability of detection (POD). This informative document deals with the irradiance and the illumina
21、nce used in PT and MT. It is intended for: manufacturers, who are encouraged to supply the criteria and the restrictions on use of their products, as well as detailed characteristics for the appropriate choice and the optimum use of sources available on the market; users, to enable them to make the
22、best use of lighting sources for efficient inspection in working conditions; supervision and training personnel, who may design and optimally arrange inspection areas, recommend the principles of visual ergonomics for ensuring inspector efficiency, comfort and safety. 2 Normative references The foll
23、owing documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 170, Persona
24、l eye-protection Ultraviolet filters Transmittance requirements and recommended use EN 12464-1, Light and lighting Lighting of work places Part 1: Indoor work places CEN/TR 16638, Non-destructive testing Penetrant and magnetic particle testing using blue light EN 62471, Photobiological safety of lam
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