1、March 2013 Translation by DIN-Sprachendienst.English price group 8No 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).ICS 1
2、9.100!$rS“1957948www.din.deDDIN EN ISO 3059Non-destructive testing Penetrant testing and magnetic particle testing Viewing conditions (ISO 3059:2012);English version EN ISO 3059:2012,English translation of DIN EN ISO 3059:2013-03Zerstrungsfreie Prfung Eindringprfung und Magnetpulverprfung Betrachtun
3、gsbedingungen (ISO 3059:2012);Englische Fassung EN ISO 3059:2012,Englische bersetzung von DIN EN ISO 3059:2013-03Essais non destructifs Contrle par ressuage et contrle par magntoscopie Conditions dobservation (ISO 3059:2012);Version anglaise EN ISO 3059:2012,Traduction anglaise de DIN EN ISO 3059:20
4、13-03SupersedesDIN EN ISO 3059:2002-01www.beuth.deIn case of doubt, the German-language original shall be considered authoritative.Document comprises 10 pages02.13 DIN EN ISO 3059:2013-03 2 A comma is used as the decimal marker. National foreword This document (EN ISO 3059:2012) has been prepared by
5、 Technical Committee CEN/TC 138 “Non-destruc-tive testing” (Secretariat: AFNOR, France) in collaboration with Technical Committee ISO/TC 135 “Non-de-structive testing”. The responsible German body involved in its preparation was the Normenausschuss Materialprfung (Materials Testing Standards Committ
6、ee), Working Committee NA 062-08-25 AA Oberflchenverfahren. The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 9712 DIN EN ISO 9712 ISO 12706 DIN EN ISO 12706 Amendments This standard differs from DIN EN ISO 3059:2002-01 as follows: a) nor
7、mative references have been updated; b) Clause 3 “Terms and definitions” has been added; c) requirements for colour contrast (Clause 5) and fluorescent techniques (Clause 6) have been revised; d) the verification period of irradiation and illuminance meters has been reduced to 12 months; e) the stan
8、dard has been editorially revised. Previous editions DIN EN ISO 3059: 2002-01 National Annex NA (informative) Bibliography DIN EN ISO 9712, Non-destructive testing Qualification and certification of NDT personnel DIN EN ISO 12706, Non-destructive testing Penetrant testing Vocabulary EUROPEAN STANDAR
9、D NORME EUROPENNE EUROPISCHE NORM EN ISO 3059 December 2012 ICS 19.100 Supersedes EN ISO 3059:2001English Version Non-destructive testing - Penetrant testing and magnetic particle testing - Viewing conditions (ISO 3059:2012) Essais non destructifs - Contrle par ressuage et contrle par magntoscopie -
10、 Conditions dobservation Zerstrungsfreie Prfung - Eindringprfung und Magnetpulverprfung - BetrachtungsbedingungenThis European Standard was approved by CEN on 30 November 2012. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this Eu
11、ropean 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 CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versi
12、ons (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 CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria,
13、Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Sw
14、itzerland, Turkey and United Kingdom. Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 3059:2012: EEUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUR
15、OPISCHES KOMITEE FR NORMUNG(ISO 3059:2012) (ISO 3059:2012) Contents Page Foreword . 3 Introduction . 3 1 Scope . 4 2 Normative references. 4 3 Terms and definitions 4 4 Safety precautions . 4 5 Colour contrast techniques 4 5.1 Light sources 4 5.2 Measurements 5 5.3 Requirements . 5 6 Fluorescent tec
16、hniques . 5 6.1 Ultraviolet radiation 5 6.2 Measurements 5 6.3 Requirements . 7 7 Visual acuity . 7 8 Calibration . 7 Bibliography 8 2DIN EN ISO 3059:2013-03EN ISO 3059:2012 (E) Foreword This document (EN ISO 3059:2012) has been prepared by Technical Committee CEN/TC 138 “Non-destructive testing , t
17、he secretariat of which is held by AFNOR, in collaboration with Technical Committee ISO/TC 135 Non-destructive testing . 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 June 2013, and conflicting
18、national standards shall be withdrawn at the latest by June 2013. 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. This document supers
19、edes EN ISO 3059:2001. According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of
20、 Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. ”“”IntroductionBoth penetrant and magnetic particle testing requ
21、ire controlled conditions for viewing indications, e.g.: adequate white light to achieve reliable testing with colour contrast techniques; adequate UV-A irradiance with minimal light for fluorescent systems.3DIN EN ISO 3059:2013-03 EN ISO 3059:2012 (E) 1 ScopeThis International Standard specifies th
22、e control of the viewing conditions for magnetic particle and penetrant testing. It includes minimum requirements for the illuminance and UV-A irradiance and their measurement. It is intended for use when the human eye is the primary detection aid.This International Standard does not cover the use o
23、f actinic blue light sources.2 Normative referencesThe 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
24、.ISO 9712, Non-destructive testing Qualification and certification of personnelISO 12706, Non-destructive testing Penetrant testing VocabularyISO 12707, Non-destructive testing Terminology Terms used in magnetic particle testingIEC 60050-845, International electrotechnical vocabulary Chapter 845: li
25、ghtingEN 1330-1, Non-destructive testing Terminology Part 1: List of general termsEN 1330-2, Non-destructive testing Terminology Part 2: Terms common to the non-destructive testing methods3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 12706, ISO 1270
26、7, EN 1330-1, and EN 1330-2 apply.4 Safety precautionsAll relevant international, regional, national and local regulations including health and safety shall be taken into account (e.g. optical radiation directives).Care shall be taken to minimize exposure of personnel to harmful optical radiation. E
27、xposure to UV radiation below 330 nm shall be avoided (e.g. from damaged or cracked filters) and exposure to high levels of other potentially harmful radiation (e.g. 365 nm or visible radiation from white light LEDs, which have a high proportion of blue light) should be minimized. The eye is particu
28、larly at risk.5 Colour contrast techniques5.1 Light sourcesInspection shall be carried out in daylight or artificial white light. Where artificial sources are used, the colour temperature shall not be below 2 500 K and it is recommended to use sources above 3 300 K. Consult the information from the
29、lamp manufacturer to confirm the colour temperature.4DIN EN ISO 3059:2013-03EN ISO 3059:2012 (E) Lighting conditions affect detection capability. The best conditions are when the surrounding area has some background light. Light reaching the inspectors eyes directly or indirectly from the light sour
30、ce or as a result of the limited screening of other sources should be avoided.Sources may not reach a steady state immediately and shall be allowed to stabilize before use. The light output can vary, e.g. due to ageing of the light source or deterioration of the reflector.The test surface shall be i
31、lluminated evenly. Glare and reflections shall be avoided.NOTE Failure of a single LED within an array can cause uneven illumination.5.2 MeasurementsThe illuminance at the test surface shall be determined by means of an illuminance meter under working conditions. The response of the meter shall be s
32、imilar to the photopic response of the human eye (as specified in IEC 60050-845).NOTE CIE 0691provides further information on evaluation of light meters.5.3 RequirementsThe level of illuminance for removal of excess penetrant shall be at least 350 lx.For inspection, the illuminance at the test surfa
33、ce shall be 500 lx or greater.In some cases, a minimum of 1 000 lx may be required.Permanently tinted spectacles, neutral density glasses or those which darken under inspection conditions shall not be worn, except for techniques involving white background and very high levels of daylight (generally
34、above 20 000 lx) which can reduce indication detectability. In this case, the use of neutral density glasses are permitted. Care shall be taken under such conditions.6 Fluorescent techniques6.1 Ultraviolet radiationTesting shall be carried out with UV-A radiation using a source with a maximum intens
35、ity at (365 5) nm and a full width at half maximum (FWHM) of 30 nm. It is important to minimize visible background light incident upon the component or light reaching the inspectors eyes directly or indirectly from the UV-A source or as a result of the limited screening of other sources. Sources may
36、 not reach a steady state immediately and shall be allowed to stabilize before use. The UV-A irradiance can vary, e.g. due to ageing of the light source or deterioration of the reflector or filter.The test surface shall be irradiated evenly.NOTE Failure of a single LED within an array can cause unev
37、en irradiation.Typical examples of light sources are mercury discharge lamps, halogen lamps, xenon lamps, and LED arrays.6.2 MeasurementsThe UV-A irradiance shall be measured under working conditions on the test surface by means of a UV-A radiometer having a sensitivity response as defined in Figure
38、 1.Measurements shall be carried out when the lamp output has stabilized (for mercury discharge lamps, this shall not be less than 10 min after switching on).For measurement of illuminance, see 5.2. The reading from the illuminance meter shall not be affected by UV-A irradiance.5DIN EN ISO 3059:2013
39、-03 EN ISO 3059:2012 (E) KeyS(l)relrelative spectral responsel wavelengthRelative spectral response is the ratio of the response of the sensor to radiation of a given wavelength, l, to the response at 365 nm.The relative spectral response curve for a suitable sensor shall not enter the shaded area.
40、A, B, C and D in the figure denote limits corresponding to the following requirements:A the relative spectral response shall not exceed 105 % for any wavelength;B the peak relative spectral response shall occur between 355 nm and 375 nm;C the relative spectral response at a wavelength of 313 nm shal
41、l be less than 10 %;D the relative spectral response at a wavelength of 405 nm shall be less than 2 %.The curve shown is an example of one produced by an acceptable meter.Figure 1 Spectral response of UV-A irradiation meters6DIN EN ISO 3059:2013-03EN ISO 3059:2012 (E) 6.3 RequirementsFor the removal
42、 of excess penetrant, the UV-A irradiance shall be at least 1 W/m2(100 W/cm2) and the illuminance shall be less than 100 lx.For inspection, the UV-A irradiance shall be 10 W/m2(1 000 W/cm2) or greater and the illuminance 20 lx or less on the test surface. The measurements shall be carried out under
43、working conditions with the UV-A source turned on and stabilized.Permanently tinted spectacles or those which darken under inspection conditions shall not be worn.For penetrant testing, the combination of high level and long duration of UV-A irradiance should be avoided, generally not more than 50 W
44、/m2(5 000 W/cm2).There shall be no glare or other source of visible light or UV-A radiation within the operators field of vision. Ambient visible light levels shall be 20 lx or less.7 Visual acuityThe visual acuity of NDT personnel shall be adequate for the NDT task carried out and shall meet the re
45、quirements of ISO 9712.8 CalibrationThe working range of irradiation and illuminance meters shall be calibrated at the frequency recommended by the manufacturer using equipment and a system which is traceable to a national, European or International Standard. This period shall not exceed 12 months.
46、The calibration of the UV-A irradiation meter shall be carried out with narrow band radiation at a wavelength of 365 nm. Maintenance of or damage to the meter shall necessitate calibration. When detachable sensors and readout units are used, calibration shall be carried out on the entire system (rea
47、dout unit and sensors).The calibration shall be documented by a certificate.7DIN EN ISO 3059:2013-03 EN ISO 3059:2012 (E) Bibliography1 CIE 069, Methods of characterizing illuminance meters and luminance meters: Performance, characteristics and specifications8DIN EN ISO 3059:2013-03EN ISO 3059:2012 (E)
