ASTM D6552 - 06(2016) - Standard Practice for Controlling and Characterizing Errors in Weighing Collected Aerosols

ASTM D6552 - 06(2016)

Standard Practice for Controlling and Characterizing Errors in Weighing Collected Aerosols

Status : Current   Published : November 2016

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PDF

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HARDCOPY



1.1 Assessment of airborne aerosol hazards in the occupational setting entails sampling onto a collection medium followed by analysis of the collected material. The result is generally an estimated concentration of a possibly hazardous material in the air. The uncertainty in such estimates depends on several factors, one of which relates to the specific type of analysis employed. The most commonly applied method for analysis of aerosols is the weighing of the sampled material. Gravimetric analysis, though apparently simple, is subject to errors from instability in the mass of the sampling medium and other elements that must be weighed. An example is provided by aerosol samplers designed to collect particles so as to agree with the inhalable aerosol sampling convention (see ISO 7708, Guide D6062, and EN 481). For some sampler types, filter and cassette are weighed together to make estimates. Therefore, if the cassette, for example, absorbs or loses water between the weighings required for a concentration estimation, then errors may arise. This practice covers such potential errors and provides solutions for their minimization.

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.3  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.




Standard NumberASTM D6552 - 06(2016)
TitleStandard Practice for Controlling and Characterizing Errors in Weighing Collected Aerosols
StatusCurrent
Publication Date01 November 2016
Normative References(Required to achieve compliance to this standard)No other standards are normatively referenced
Informative References(Provided for Information)No other standards are informatively referenced
Descriptors Blank, Control filter, Filter, Foam, Gravimetric, Limit of detection, Limit of quantitation, LOD, LOQ, Sampling media, Weighing, Weight
ICS13.040.99
PublisherASTM
FormatA4
DeliveryYes
Pages9
File Size141 KB
Price£40.00


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