ASTM E2297 - 04(2010)

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

    Active Standard ASTM E2297 | Developed by Subcommittee: E07.03

    Book of Standards Volume: 03.03

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    Significance and Use

    UV-A and Visible light sources are used to provide adequate light levels for liquid penetrant and magnetic particle examination. Light meters are used to verify that specified light levels are available.

    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.

    High Intensity UV-A light sources produce light intensity greater than 10,000 µW/cm2 at 38.1 cm (15 in.).

    1. 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 (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    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

    ICS Code

    ICS Number Code 13.220.50 (Fire-resistance of building materials and elements)

    UNSPSC Code

    UNSPSC Code

    DOI: 10.1520/E2297-04R10

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