ASTM E2297-15

Standard Guide for Use of UV-A and Visible Light Sources and Meters used in the Liquid Penetrant and Magnetic Particle Methods

SIGNIFICANCE AND USE
5.1 UV-A and visible light sources are used to provide adequate light levels for liquid penetrant and magnetic particle examination. Radiometers and light meters are used to verify that specified light levels are available.  
5.2 Fluorescence is produced by irradiating the fluorescent dyes/pigments with UV-A radiation. The fluorescent dyes/pigments absorb the energy from the UV-A radiation and re-emit light energy in the visible spectrum. This energy transfer allows fluorescence to be observed by the human eye.  
5.3 UV-A light sources may emit visible light above 400 nm (400 Å), which may reduce the visiblity of fluorescent indications. High intensity UV-A light sources may cause UV fade, causing fluorescent indications to disappear.
SCOPE
1.1 This guide describes the use of UV-A/Visible light sources and meters used for the examination of materials by the liquid penetrant and magnetic particle processes. This guide may be used to help support the needs for appropriate light intensities and light measurement.  
1.2 This guide also provides a reference:  
1.2.1 To assist in the selection of light sources and meters that meet the applicable specifications or standards.  
1.2.2 For use in the preparation of internal documentation dealing with liquid penetrant or magnetic particle examination of materials and parts.  
1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversions to inch-pound units that are provided for information only and are not considered standard  
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 14-Jul-2015
• ICS: 17.180.20 - Colours and measurement of light
• ICS: 19.100 - Non-destructive testing
• Technical Committee: E07 - Nondestructive Testing
• Drafting Committee: E07.03 - Liquid Penetrant and Magnetic Particle Methods

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: E2297 − 15
Standard Guide for
Use of UV-A and Visible Light Sources and Meters used in
1
the Liquid Penetrant and Magnetic Particle Methods
This standard is issued under the fixed designation E2297; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* E1210 Practice for Fluorescent Liquid Penetrant Testing
Using the Hydrophilic Post-Emulsification Process
1.1 This guide describes the use of UV-A/Visible light
E1219 Practice for Fluorescent Liquid Penetrant Testing
sources and meters used for the examination of materials by the
Using the Solvent-Removable Process
liquid penetrant and magnetic particle processes. This guide
E1220 Practice for Visible Penetrant Testing Using Solvent-
may be used to help support the needs for appropriate light
Removable Process
intensities and light measurement.
E1316 Terminology for Nondestructive Examinations
1.2 This guide also provides a reference:
E1417 Practice for Liquid Penetrant Testing
1.2.1 To assist in the selection of light sources and meters
E1418 Practice for Visible Penetrant Testing Using the
that meet the applicable specifications or standards.
Water-Washable Process
1.2.2 For use in the preparation of internal documentation
E1444 Practice for Magnetic Particle Testing
dealing with liquid penetrant or magnetic particle examination
E3022 Practice For Measurement of Emission Characteris-
of materials and parts.
tics and Requirements for LED UV-A Lamps Used in
1.3 The values stated in SI units are to be regarded as Fluorescent Penetrant and Magnetic Particle Testing
standard. The values given in parentheses are mathematical
conversions to inch-pound units that are provided for informa- 3. Terminology
tion only and are not considered standard
3.1 The definitions that appear in E1316, relating to UV-A
1.4 This standard does not purport to address all of the
radiation and visible light used in liquid penetrant and mag-
safety concerns, if any, associated with its use. It is the
netic particle examinations, shall apply to the terms used in this
responsibility of the user of this standard to establish appro-
guide.
priate safety and health practices and determine the applica-
3.2 Definitions:
bility of regulatory limitations prior to use.
3.2.1 high-intensity UV-A source—a light source that pro-
2
duces UV-A irradiance greater than 10 000 µW ⁄cm
2. Referenced Documents
2
(100 W ⁄m ) at 38.1 cm (15 in.).
2
2.1 ASTM Standards:
3.2.2 illuminance—the amount of visible light, weighted by
E165 Practice for Liquid Penetrant Examination for General
the luminosity function to correlate with human perception,
Industry
incident on a surface, per unit area. Typically reported in units
E709 Guide for Magnetic Particle Testing 2
of lux (lx), lumens per square metre (lm/m ) or footcandle (fc).
E1208 Practice for Fluorescent Liquid Penetrant Testing
3.2.3 irradiance—the power of electromagnetic radiation
Using the Lipophilic Post-Emulsification Process
incident on a surface, per unit area. Typically reported in units
E1209 Practice for Fluorescent Liquid Penetrant Testing
2
of watts per square metre (W/m ) or microwatts per square
Using the Water-Washable Process
2
centimetre (µW/cm ).
3.2.4 radiometer—an instrument incorporating a sensor and
optical filters to measure the irradiance of light over a defined
1
This guide is under the jurisdiction of ASTM Committee E07 on Nondestruc-
range of wavelengths.
tive Testing and is the direct responsibility of Subcommittee E07.03 on Liquid
Penetrant and Magnetic Particle Methods.
Current edition approved July 15, 2015. Published September 2015. Originally
4. Summary of Guide
approved 2004. Last previous edition approved in 2010 as E22973–04(2010). DOI:
10.1520/E2297-15.
4.1 This guide describes the properties of UV-A and visible
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
light sources used for liquid penetrant and magnetic particle
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
examination. This guide also describes the properties of
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. radiometers and light meters used to determine if adequate
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
E2297 − 15
light levels (UV-A or visible, or both) are present while 6.2.1 Most UV-A sources utilize a lamp containing a
conducting a l
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: E2297 − 04 (Reapproved 2010) E2297 − 15
Standard Guide for
Use of UV-A and Visible Light Sources and Meters used in
1
the Liquid Penetrant and Magnetic Particle Methods
This standard is issued under the fixed designation E2297; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope Scope*
1.1 This guide describes the use of UV-A/Visible light sources and meters used for the examination of materials by the liquid
penetrant and magnetic particle processes. This guide may be used to help support the needs for appropriate light intensities and
light measurement.
1.2 This guide also provides a reference:
1.2.1 To assist in the selection of light sources and meters that meet the applicable specifications or standards.
1.2.2 For use in the preparation of internal documentation dealing with liquid penetrant or magnetic particle examination of
materials and parts.
1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversions
to inch-pound units that are provided for information only and are not considered standard
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory
limitations prior to use.
2. Referenced Documents
2
2.1 ASTM Standards:
E165 Practice for Liquid Penetrant Examination for General Industry
E709 Guide for Magnetic Particle Testing
E1208 Practice for Fluorescent Liquid Penetrant Testing Using the Lipophilic Post-Emulsification Process
E1209 Practice for Fluorescent Liquid Penetrant Testing Using the Water-Washable Process
E1210 Practice for Fluorescent Liquid Penetrant Testing Using the Hydrophilic Post-Emulsification Process
E1219 Practice for Fluorescent Liquid Penetrant Testing Using the Solvent-Removable Process
E1220 Practice for Visible Penetrant Testing Using Solvent-Removable Process
E1316 Terminology for Nondestructive Examinations
E1417 Practice for Liquid Penetrant Testing
E1418 Practice for Visible Penetrant Testing Using the Water-Washable Process
E1444 Practice for Magnetic Particle Testing
E3022 Practice For Measurement of Emission Characteristics and Requirements for LED US-A Lamps Used in Fluorescent
Penetrant and Magnetic Particle Testing
3. Terminology
3.1 The definitions that appear in E1316, relating to UV-A radiation and visible light used in liquid penetrant and magnetic
particle examinations, shall apply to the terms used in this guide.
3.2 Definitions:
1
This guide is under the jurisdiction of ASTM Committee E07 on Nondestructive Testing and is the direct responsibility of Subcommittee E07.03 on Liquid Penetrant
and Magnetic Particle Methods.
Current edition approved Aug. 1, 2010July 15, 2015. Published November 2010September 2015. Originally approved 2004 2004. Last previous edition approved in 2010
as E22973 - 04.E22973–04(2010). DOI: 10.1520/E2297-04R10.10.1520/E2297-15.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
E2297 − 15
2 2
3.2.1 high-intensity UV-A source—a light source that produces UV-A irradiance greater than 10 000 μW ⁄cm (100 W ⁄m ) at
38.1 cm (15 in.).
3.2.2 illuminance—the amount of visible light, weighted by the luminosity function to correlate with human perception, incident
2
on a surface, per unit area. Typically reported in units of lux (lx), lumens per square metre (lm/m ) or footcandle (fc).
3.2.3 irradiance—the power of electromagnetic radiation incident on a surface, per unit area. Typically reported in units of watts
2 2
per square metre (W/m ) or microwatts per square centimetre (μW/cm ).
3.2.4 radiometer—an instrument incorporating a sensor and optical filters to measure the irradiance of light over a defined range
of wavelengths.
4. Summary of Guide
4.1 This
...