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ASTM E2630-08e1

(Test Method)

Standard Test Method for Luminance Ratio of a Fluorescent Specimen using a Narrow Band Source

Standard Test Method for Luminance Ratio of a Fluorescent Specimen using a Narrow Band Source

SIGNIFICANCE AND USE
The test method is suitable for the development, specification and quality control testing of fluorescent and non-fluorescent coatings that are intended to be inspected for defects under Specification E2501 illumination.
SCOPE
1.1 This test method covers the instrumental measurement of the luminance ratio of a fluorescent coating or sheet sample when illuminated by a narrow band source.
1.2 This test method is generally applicable to any coating or sheeting material having combined fluorescent and reflective properties, where the fluorescence is activated by 405 nm light.
1.3 This test method is intended as a companion to Specification E2501 to support the development and specification of industrial coatings that are used in a system for detection of coating defects when inspected with the Specification E2501 light source. This test method establishes a quantitative measure of the optical property of a coating that correlates to its ability to enhance defect contrast under the specified inspection light source.
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.

General Information

Status
Historical
Publication Date
31-May-2008
ICS
93.080.40 - Street lighting and related equipment
Technical Committee
E12 - Color and Appearance
Drafting Committee
E12.05 - Fluorescence
Current Stage
Ref Project

Relations

Replaces
ASTM E2630-08 - Standard Test Method for Luminance Ratio of a Fluorescent Specimen using a Narrow Band Source
Effective Date
01-Jun-2008

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ASTM E2630-08e1 - Standard Test Method for Luminance Ratio of a Fluorescent Specimen using a Narrow Band SourceASTM E2630-08e1 - Standard Test Method for Luminance Ratio of a Fluorescent Specimen using a Narrow Band Source
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ASTM E2630-08e1 - Standard Test Method for Luminance Ratio of a Fluorescent Specimen using a Narrow Band Source
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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
´1
Designation: E2630 − 08
StandardTest Method for
Luminance Ratio of a Fluorescent Specimen using a Narrow
1
Band Source
This standard is issued under the fixed designation E2630; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1
ε NOTE—Equations 2 and X2.2 were corrected editorially in June 2010.
3
1. Scope Tolerances (Withdrawn 2007)
D5162Practice for Discontinuity (Holiday) Testing of Non-
1.1 This test method covers the instrumental measurement
conductive Protective Coating on Metallic Substrates
of the luminance ratio of a fluorescent coating or sheet sample
E179Guide for Selection of Geometric Conditions for
when illuminated by a narrow band source.
Measurement of Reflection and Transmission Properties
1.2 This test method is generally applicable to any coating
of Materials
orsheetingmaterialhavingcombinedfluorescentandreflective
E284Terminology of Appearance
properties,wherethefluorescenceisactivatedby405nmlight.
E1164PracticeforObtainingSpectrometricDataforObject-
Color Evaluation
1.3 This test method is intended as a companion to Speci-
E1488GuideforStatisticalProcedurestoUseinDeveloping
fication E2501 to support the development and specification of
and Applying Test Methods
industrial coatings that are used in a system for detection of
E2501Specification for Light Source Products for Inspec-
coating defects when inspected with the Specification E2501
tion of Fluorescent Coatings
light source. This test method establishes a quantitative mea-
sure of the optical property of a coating that correlates to its 2.2 Other Documents:
ISO 10527:2007(E)/CIE S 014-1/E:2006 CIE Standard
abilitytoenhancedefectcontrastunderthespecifiedinspection
4
light source. Colorimetric Observers
CIE Publication 69:1987Methods of characterizing illumi-
1.4 The values stated in SI units are to be regarded as
nance meters and luminance meters: Performance, char-
standard. No other units of measurement are included in this
4
acteristics and specifications
standard.
2.3 SSPC:
1.5 This standard does not purport to address all of the
5
SSPC-SP 10/NACE No. 2Near-White Blast Cleaning
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
3. Terminology
priate safety and health practices and determine the applica-
3.1 The definitions contained in Guide E179, Terminology
bility of regulatory limitations prior to use.
E284, and Practice E1164 are applicable to this test method.
3.2 The definitions for coating defects, discontinuity,
2. Referenced Documents
holiday, and pinhole are contained in Practice D5162.
2
2.1 ASTM Standards:
3.3 Definitions of Terms Specific to This Standard:
D2805Test Method for Hiding Power of Paints by Reflec-
3.3.1 luminance ration, n—luminanceofthesampleundera
tometry
givennarrowband405nmsourcedividedbytheluminanceof
D4356Practice for Establishing Consistent Test Method
a 25% reflecting Lambertian diffuser under the same narrow
band 405 nm source.
1
This test method is under the jurisdiction of ASTM Committee E12 on Color
and Appearance and is the direct responsibility of Subcommittee E12.05 on
3
Fluorescence. The last approved version of this historical standard is referenced on
Current edition approved June 1, 2008. Published July 2008. DOI: 10.1520/ www.astm.org.
4
E2630-08E01. AvailablefromU.S.NationalCommitteeoftheCIE(InternationalCommission
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or on Illumination), C/o Thomas M. Lemons, TLA-Lighting Consultants, Inc., 7 Pond
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM St., Salem, MA 01970, http://www.cie-usnc.org.
5
Standards volume information, refer to the standard’s Document Summary page on Available from Society for Protective Coatings (SSPC), 40 24th St., 6th Floor,
the ASTM website. Pittsburgh, PA 15222-4656, http://www.sspc.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
´1
E2630 − 08
4. Summary of Test Method 6.2.2 If the luminance meter is filter based, the spectral
responsivity of the luminance meter shall match that of the
4.1 Thistestmethodprovidesaprocedureformeasuringthe
1931 CIE Standard Photopic Observer. (ISO10527:2007(E)/
luminanceratioofafluorescent,reflectivecoatingcomparedto
CIES014-1/E:2006)Theindividualspectralmismatchcorrec-
a 25% reflecting Lambertian diffuser, which is similar to steel
tion factors or the ratio of spectral mismatch correction factors
grit blasted to an SSPC-SP 10/NACE No. 2 near-
...

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