ASTM E1135-97
Historical Standard: ASTM E1135-97 Standard Test Method for Comparing the Brightness of Fluorescent Penetrants
SUPERSEDED (see Active link, below)
ASTM E1135
1. Scope
1.1 This test method describes the techniques for comparing the brightness of the penetrants used in the fluorescent dye penetrant process. This comparison is performed under controlled conditions which eliminate most of the variables present in actual penetrant examination. Thus, the brightness factor is isolated and is measured independently of the other factors which affect the performance of a penetrant system.
1.2 The brightness of a penetrant indication is dependent on the developer with which it is used. This test method however, measures the brightness of a penetrant on a convenient filter paper substrate which serves as a substitute for the developer.
1.3 The brightness measurement obtained is color-corrected to approximate the color response of the average human eye. Since most examination is done by human eyes, this number has more practical value than a measurement in units of energy emitted. Also, the comparisons are expressed as a percentage of some chosen standard penetrant because no absolute system of measurement exists at this time.
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
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
E1316 Terminology for Nondestructive Examinations
Keywords
brightness of dye penetrants; dye penetrants; fluorescent penetrants;
ICS Code
ICS Number Code 17.180.20 (Colours and measurement of light); 87.040 (Paints and varnishes)
DOI: 10.1520/E1135-97
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