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ASTM International - ASTM E1135-97(2008)e1

Standard Test Method for Comparing the Brightness of Fluorescent Penetrants

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Organization: ASTM International
Publication Date: 1 July 2008
Status: inactive
Page Count: 5
ICS Code (Colours and measurement of light): 17.180.20
ICS Code (Paints and varnishes): 87.040
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.

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.

Document History

February 1, 2019
Standard Test Method for Comparing the Brightness of Fluorescent Penetrants
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...
June 15, 2012
Standard Test Method for Comparing the Brightness of Fluorescent Penetrants
The penetrant is one of the major components of the fluorescent penetrant process, and very influential in the degree of performance attained by a given system or group of materials. The penetrant...
ASTM E1135-97(2008)e1
July 1, 2008
Standard Test Method for Comparing the Brightness of Fluorescent Penetrants
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...
July 10, 2003
Standard Test Method for Comparing the Brightness of Fluorescent Penetrants
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...
February 10, 1997
Standard Test Method for Comparing the Brightness of Fluorescent Penetrants
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...
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