1、Designation:E229715Standard Guide forUse of UV-A and Visible Light Sources and Meters used inthe Liquid Penetrant and Magnetic Particle Methods1This standard is issued under the fixed designation E2297;the number immediately following the designation indicates the year oforiginal adoption or,in the
2、case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 This guide describes the use of UV-A/Visible lightsources and meters used for the examination
3、 of materials by theliquid penetrant and magnetic particle processes.This guidemay be used to help support the needs for appropriate lightintensities and light measurement.1.2 This guide also provides a reference:1.2.1 To assist in the selection of light sources and metersthat meet the applicable sp
4、ecifications or standards.1.2.2 For use in the preparation of internal documentationdealing with liquid penetrant or magnetic particle examinationof materials and parts.1.3 The values stated in SI units are to be regarded asstandard.The values given in parentheses are mathematicalconversions to inch
5、-pound units that are provided for informa-tion only and are not considered standard1.4 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and de
6、termine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2E165 Practice for Liquid Penetrant Examination for GeneralIndustryE709 Guide for Magnetic Particle TestingE1208 Practice for Fluorescent Liquid Penetrant TestingUsing the Lipophilic Post-Emuls
7、ification ProcessE1209 Practice for Fluorescent Liquid Penetrant TestingUsing the Water-Washable ProcessE1210 Practice for Fluorescent Liquid Penetrant TestingUsing the Hydrophilic Post-Emulsification ProcessE1219 Practice for Fluorescent Liquid Penetrant TestingUsing the Solvent-Removable ProcessE1
8、220 Practice for Visible Penetrant Testing Using Solvent-Removable ProcessE1316 Terminology for Nondestructive ExaminationsE1417 Practice for Liquid Penetrant TestingE1418 Practice for Visible Penetrant Testing Using theWater-Washable ProcessE1444 Practice for Magnetic Particle TestingE3022 Practice
9、 For Measurement of Emission Characteris-tics and Requirements for LED UV-A Lamps Used inFluorescent Penetrant and Magnetic Particle Testing3.Terminology3.1 The definitions that appear in E1316,relating to UV-Aradiation and visible light used in liquid penetrant and mag-netic particle examinations,s
10、hall apply to the terms used in thisguide.3.2 Definitions:3.2.1 high-intensity UV-A sourcea light source that pro-ducesUV-Airradiancegreaterthan10 000 W cm2(100 Wm2)at 38.1 cm(15 in.).3.2.2 illuminancethe amount of visible light,weighted bythe luminosity function to correlate with human perception,i
11、ncident on a surface,per unit area.Typically reported in unitsof lux(lx),lumens per square metre(lm/m2)or footcandle(fc).3.2.3 irradiancethe power of electromagnetic radiationincident on a surface,per unit area.Typically reported in unitsof watts per square metre(W/m2)or microwatts per squarecentime
12、tre(W/cm2).3.2.4 radiometeran instrument incorporating a sensor andoptical filters to measure the irradiance of light over a definedrange of wavelengths.4.Summary of Guide4.1 This guide describes the properties of UV-A and visiblelight sources used for liquid penetrant and magnetic particleexaminati
13、on.This guide also describes the properties ofradiometers and light meters used to determine if adequate1This guide is under the jurisdiction of ASTM Committee E07 on Nondestruc-tive Testing and is the direct responsibility of Subcommittee E07.03 on LiquidPenetrant and Magnetic Particle Methods.Curr
14、ent edition approved July 15,2015.Published September 2015.Originallyapproved 2004.Last previous edition approved in 2010 as E2297304(2010).DOI:10.1520/E2297-15.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of AS
15、TMStandards volume information,refer to the standards Document Summary page onthe ASTM website.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 light levels(UV-A or visible,o
16、r both)are present whileconducting a liquid penetrant or magnetic particle examination.5.Significance and Use5.1 UV-A and visible light sources are used to provideadequate light levels for liquid penetrant and magnetic particleexamination.Radiometers and light meters are used to verifythat specified light levels are available.5.2 Fluorescence is produced by irradiating the fluorescentdyes/pigments with UV-A radiation.The fluorescent dyes/pigments absorb the energy from the UV-A radiation andre-e
