ASTM International - ASTM D6620-06
Standard Practice for Asbestos Detection Limit Based on Counts
Organization: | ASTM International |
Publication Date: | 1 October 2006 |
Status: | inactive |
Page Count: | 11 |
ICS Code (Other standards related to air quality): | 13.040.99 |
significance And Use:
The DL concept addresses potential measurement interpretation errors. It is used to control the likelihood of reporting a positive finding of asbestos when the measured asbestos level cannot... View More
scope:
1.1 This practice presents the procedure for determining the detection limit (DL) for measurements of fibers or structures using microscopy methods.
1.2 This practice applies to samples of air that are analyzed either by phase contrast microscopy (PCM) or transmission electron microscopy (TEM), and samples of dust that are analyzed by TEM.
1.3 The microscopy methods entail counting asbestos structures and reporting the results as structures per cubic centimeter of air (str/cc) or fibers per cubic centimeter of air (f/cc) for air samples and structures per square centimeter of surface area (str/cm2) for dust samples.
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