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Standard Guide for Use of UV-A and Visible Light Sources and Meters used in the Liquid Penetrant and Magnetic Particle Methods
Automaticky preložený názov:
Štandardné Príručka pre použitie UV-A a viditeľného svetla zdroja a merače používané v kapilárnej a magnetické metódy čiastočiek
NORMA vydaná dňa 1.8.2010
Označenie normy: ASTM E2297-04(2010)
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.8.2010
Kód tovaru: NS-44950
Počet strán: 5
Približná hmotnosť: 15 g (0.03 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Keywords:
electromagnetic spectrum, UV-A exposure limits, UV-A light sources, UV-A measurement, UV-A meters, visible light contamination, visible light measurement, visible light meters, visible light sources, Light analysis, Liquid penetration, Visible light, ICS Number Code 17.180.20 (Colours and measurement of light)
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.). |
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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. |
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2. Referenced Documents | ||||||||||||||||||||||||
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