D7948 Standard Test Method for Measurement of Respirable Crystalline Silica in Workplace Air by Infrared Spectrometry has been revised to D7948-20

United States of America Global North America

Workers exposure Standards and test methods

Scope

1.1 This standard specifies a test method for collection and analysis of samples of airborne particulate matter for measurement of respirable crystalline silica by infrared (IR) spectrometry.

1.2 This test method is applicable to the analysis of crystalline silica (the polymorphs quartz, cristobalite and tridymite) over a working range of 0.025 to 0.4 mg/m3 for a 400 L air sample or 0.02 to 0.25 mg/m3 for a 1000 L air sample, depending on the analytical method.

1.3 The methodology is applicable to personal sampling of the respirable fraction of airborne particles and to static (area) sampling.

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D7948 Standard Test Method for Measurement of Respirable Crystalline Silica in Workplace Air by Infrared Spectrometry has been revised to D7948-20

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D7948 Standard Test Method for Measurement of Respirable Crystalline Silica in Workplace Air by Infrared Spectrometry has been revised to D7948-20

Your substances

None

This news contains references also to other Substances

Related News