ASTM E2501-06
(Specification)Standard Specification for Light Source Products for Inspection of Fluorescent Coatings
Standard Specification for Light Source Products for Inspection of Fluorescent Coatings
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.
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: E 2501 – 06
Standard Specification for
Light Source Products for Inspection of Fluorescent
Coatings
This standard is issued under the fixed designation E 2501; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope IEC 60825-1 Edition 1.2 Safety of Laser Products – Part 1:
Equipment classification, requirements and user’s guide.
1.1 This specification provides the requirements for light
source products intended for excitation of fluorescent materials
3. Terminology
used as a system for detection of defects in industrial coatings.
3.1 Definitions: The definitions of terms in Terminology
This includes the examination of both longer wavelength
E 284 are applicable to this standard.
fluorescing primer coatings as well as non-fluorescent top
coatings.
4. Significance and Use
1.2 This specification establishes the radiometric require-
4.1 Light source products conforming to this specification
ments of the light source product in terms of required wave-
are intended to be used in conjunction with coatings specially
length range and minimum irradiance.
formulated with fluorescent colorants as a system for the visual
1.3 Thisspecificationestablishessafetyrequirementsforthe
detection of defects in industrial protective coatings.
light source product necessary to ensure the product will not
4.2 Visible fluorescence from the coating enhances the
pose a threat to visual health.
visibility of coating irregularities and defects and is produced
1.4 The values stated in SI units are to be regarded as
by excitation of visible-activated fluorescent colorants in the
standard. No other units of measurement are included in this
coating.
standard.
4.3 Light source products with defined wavelength and
1.5 This standard does not purport to address all of the
intensity properties are required to produce adequate visible
safety concerns, if any, associated with its use. It is the
fluorescence for easy visual location of defects.
responsibility of the user of this standard to establish appro-
4.4 Alight source product is considered to consist of a light
priate safety and health practices and determine the applica-
source component incorporated into an optical, electrical,
bility of regulatory limitations prior to use.
mechanical, and power supply system that makes it suitable for
use in an industrial environment. The entire light source
2. Referenced Documents
2 product is subject to this standard. The light source component
2.1 ASTM Standards:
and any subassemblies of the light source product are not
E 284 Terminology of Appearance
subject to this standard
E 1341 Practice for Obtaining Spectroradiometric Data
4.5 This specification is limited to light source products
from Radiant Sources for Colorimetry
providing excitation in the range from 400 to 420 nm.
G 138 Test Method for Calibration of a Spectroradiometer
Using a Standard Source of Irradiance
5. Performance Requirements
2.2 IEC Standards:
5.1 Irradiance:
5.1.1 The light source shall provide a minimum irradiance
This specification is under the jurisdiction of ASTM Committee E12 on Color of 15 W/m at 100 mm distance from the point at which the
and Appearance and is the direct responsibility of Subcommittee E12.05 on
light exits the product.
Fluorescence.
5.1.2
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