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ASTM-E1135:2008 Edition

ASTM-E1135:2008 Edition

$40.63

E1135-97(2008)e1 Standard Test Method for Comparing the Brightness of Fluorescent Penetrants

Published By Publication Date Number of Pages
ASTM 2008 5
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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.

PDF Catalog

PDF Pages PDF Title
1 Scope
Referenced Documents
Terminology
Summary of Test Method
Significance and Use
2 Apparatus
Sample Preparation
Procedure for Turner Fluorometer
FIG. 1
3 Procedure for Coleman Fluorometer
FIG. 2
4 FIG. 4
FIG. 3
5 Calculation
Precision and Bias
Keywords
FIG. 5

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