ASTM E2501-11
(Specification)Standard Specification for Light Source Products for Inspection of Fluorescent Coatings
Standard Specification for Light Source Products for Inspection of Fluorescent Coatings
ABSTRACT
This specification provides the requirements for light source products intended for excitation of fluorescent materials used as a system for detection of defects in industrial coatings. This includes the examination of both longer wavelength fluorescing primer coatings as well as non-fluorescent top coatings. Also, this specification establishes the radiometric requirements of the light source product in terms of required wavelength range and minimum irradiance. Safety requirements shall be established for the light source product necessary to ensure the product will not pose a threat to visual health. Irradiance test method shall be performed to conform to the specified requirements, in accordance to the test method.
SIGNIFICANCE AND USE
Light source products conforming to this specification are intended to be used in conjunction with coatings specially formulated with fluorescent colorants as a system for the visual detection of defects in industrial protective coatings.
Visible fluorescence from the coating enhances the contrast of coating irregularities and defects and is produced by excitation of visible-activated fluorescent colorants in the coating.
Light source products with defined wavelength and intensity properties are required to produce adequate visible fluorescence for easy visual location of defects.
A light source product is considered to consist of a light source component incorporated into an optical, electrical, mechanical, and power supply system that makes it suitable for use in an industrial environment. The entire light source product is subject to this standard. The light source component and any subassemblies of the light source product are not subject to this standard
This specification is limited to light source products providing excitation in the range from 400 to 420 nm.
SCOPE
1.1 This specification provides the requirements for light source products intended for excitation of fluorescent materials used as a system for detection of defects in industrial coatings. This includes the examination of both longer wavelength fluorescing primer coatings as well as non-fluorescent top coatings.
1.2 This specification establishes the radiometric requirements of the light source product in terms of required wavelength range and minimum irradiance.
1.3 This specification establishes safety requirements for the light source product necessary to ensure the product will not pose a threat to visual health.
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.5 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.
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Designation:E2501 −11
Standard Specification for
Light Source Products for Inspection of Fluorescent
1
Coatings
This standard is issued under the fixed designation E2501; 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.
3
1. Scope 2.2 IEC Standards:
IEC 62471-2:2006 Edition 1—Photobiological Safety of
1.1 This specification provides the requirements for light
Lamps and Lamp Systems
source products intended for excitation of fluorescent materials
4
2.3 ANSI Standards:
used as a system for detection of defects in industrial coatings.
ANSI/IESNA RP27.3-2005 Photobiological Safety for
This includes the examination of both longer wavelength
Lamps and Lamp Systems — General Requirements
fluorescing primer coatings as well as non-fluorescent top
ANSI/ISEA Z87.1 Occupational and Educational Personal
coatings.
Eye and Face Protection Devices
1.2 This specification establishes the radiometric require-
3. Terminology
ments of the light source product in terms of required wave-
3.1 Definitions—The definitions of terms in Terminology
length range and minimum irradiance.
E284 are applicable to this standard.
1.3 Thisspecificationestablishessafetyrequirementsforthe
4. Significance and Use
light source product necessary to ensure the product will not
pose a threat to visual health.
4.1 Light source products conforming to this specification
are intended to be used in conjunction with coatings specially
1.4 The values stated in SI units are to be regarded as
formulated with fluorescent colorants as a system for the visual
standard. No other units of measurement are included in this
detection of defects in industrial protective coatings.
standard.
4.2 Visible fluorescence from the coating enhances the
1.5 This standard does not purport to address all of the
contrastofcoatingirregularitiesanddefectsandisproducedby
safety concerns, if any, associated with its use. It is the
excitation of visible-activated fluorescent colorants in the
responsibility of the user of this standard to establish appro-
coating.
priate safety and health practices and determine the applica-
4.3 Light source products with defined wavelength and
bility of regulatory limitations prior to use.
intensity properties are required to produce adequate visible
fluorescence for easy visual location of defects.
2. Referenced Documents
2 4.4 Alight source product is considered to consist of a light
2.1 ASTM Standards:
source component incorporated into an optical, electrical,
E284 Terminology of Appearance
mechanical,andpowersupplysystemthatmakesitsuitablefor
E1341 Practice for Obtaining Spectroradiometric Data from
use in an industrial environment. The entire light source
Radiant Sources for Colorimetry
product is subject to this standard. The light source component
G138 Test Method for Calibration of a Spectroradiometer
and any subassemblies of the light source product are not
Using a Standard Source of Irradiance
subject to this standard
4.5 This specification is limited to light source products
providing excitation in the range from 400 to 420 nm.
1
This specification is under the jurisdiction of ASTM Committee E12 on Color
and Appearance and is the direct responsibility of Subcommittee E12.05 on
5. Performance Requirements
Fluorescence.
Current edition approved June 1, 2011. Published June 2011. Originally
5.1 Irradiance:
approved in 2006. Last previous edition approved in 2007 as E2501 - 07. DOI:
10.1520/E2501-11.
2 3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Available from International Electrotechnical Commission (IEC), 3, rue de
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Varembé, P.O. Box 131, CH-1211 Geneva 20, Switzerland, http://www.iec.ch.
4
Standards volume information, refer to the standard’s Document Summary page on Available from American National Standards Institute (ANSI), 25 W. 43rd St.,
the ASTM website. 4th Floor, New York, NY 10036, http://www.ansi.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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E2501−11
5.1.1 The light source shall provide a minimum irradiance 6.1.3 Measure irradiance using a spectroradiometer cali-
2
of 5 W/m at 20 cm distance from the point at which the light brated, verified, and operated in accordance with Test Method
exits the product. G138 and Practice E1341.
5.1.2 Ninety-five percent (95 %) of the output flux shall be
6.1.4 Report irradiance results in accordance with Practice
of a wavelength in the range from 380 to 435 nm.
E1341.
5.2 Eye
...
This document is not anASTM standard and is intended only to provide the user of anASTM 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:E2501–07 Designation: E2501 – 11
Standard Specification for
Light Source Products for Inspection of Fluorescent
1
Coatings
This standard is issued under the fixed designation E2501; 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
1.1 This specification provides the requirements for light source products intended for excitation of fluorescent materials used
as a system for detection of defects in industrial coatings. This includes the examination of both longer wavelength fluorescing
primer coatings as well as non-fluorescent top coatings.
1.2 Thisspecificationestablishestheradiometricrequirementsofthelightsourceproductintermsofrequiredwavelengthrange
and minimum irradiance.
1.3 This specification establishes safety requirements for the light source product necessary to ensure the product will not pose
a threat to visual health.
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.5 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:
E284 Terminology of Appearance
E1341 Practice for Obtaining Spectroradiometric Data from Radiant Sources for Colorimetry
G138 Test Method for Calibration of a Spectroradiometer Using a Standard Source of Irradiance
3
2.2 IEC Standards:
IEC 60825-1Edition 1.2 Safety of Laser Products – Part 1: Equipment classification, requirements and user’s guide. IEC
62471-2:2006 Edition 1—Photobiological Safety of Lamps and Lamp Systems
4
2.3 ANSI Standards:
ANSI/IESNA RP27.3-2005 Photobiological Safety for Lamps and Lamp Systems — General Requirements
ANSI/ISEA Z87.1 Occupational and Educational Personal Eye and Face Protection Devices
3. Terminology
3.1 DefinitionsDefinitions: The—The definitions of terms in Terminology E284 are applicable to this standard.
4. Significance and Use
4.1 Light source products conforming to this specification are intended to be used in conjunction with coatings specially
formulated with fluorescent colorants as a system for the visual detection of defects in industrial protective coatings.
4.2 Visible fluorescence from the coating enhances the visibilitycontrast of coating irregularities and defects and is produced
by excitation of visible-activated fluorescent colorants in the coating.
4.3 Light source products with defined wavelength and intensity properties are required to produce adequate visible
fluorescence for easy visual location of defects.
4.4 A light source product is considered to consist of a light source component incorporated into an optical, electrical,
mechanical, and power supply system that makes it suitable for use in an industrial environment. The entire light source product
1
This specification is under the jurisdiction ofASTM Committee E12 on Color andAppearance and is the direct responsibility of Subcommittee E12.05 on Fluorescence.
CurrenteditionapprovedJulyJune1,2007.2011.PublishedJuly2007.June2011.Originallyapprovedin2006.Lastpreviouseditionapprovedin20062007asE2501 - 067.
DOI: 10.1520/E2501-07.10.1520/E2501-11.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from International Electrotechnical Commission (IEC), 3, rue de Varembé, Case postaleP.O. Box 131, CH-1211,CH-1211 Geneva 20, Switzerland,
http://www.iec.ch.
4
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
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E2501 – 11
is subject to this standard. The light source component and any subassemblies of the light source product are not subject to this
standard
4.5 This specification is limited to light source products providing excitation in the range from 400 to 420 nm.
5. Performance Requirements
5.1
...
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