ASTM D7144 - 05A(2016) - Standard Practice for Collection of Surface Dust by Micro-vacuum Sampling for Subsequent Metals Determination

ASTM D7144 - 05A(2016)

Standard Practice for Collection of Surface Dust by Micro-vacuum Sampling for Subsequent Metals Determination

Status : Current   Published : October 2016

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1.1 This practice covers the micro-vacuum collection of surface dust for subsequent determination of metals. The primary intended application is for sampling from soft, rough, or porous surfaces.

1.2 Micro-vacuum sampling is carried out using a collection nozzle attached to a filter holder (sampling cassette) that is connected to an air sampling pump.

1.3 This practice allows for the subsequent determination of metals on a loading basis (mass of metal(s) per unit area sampled), or on a concentration basis (mass of metal(s) per unit mass of sample collected), or both.

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

1.5  Limitations—Due to a number of physical factors inherent in the micro-vacuum sampling method, analytical results for vacuum dust samples are not likely to reflect the total dust contained within the sampling area prior to sample collection. Indeed, dust collection will generally be biased towards smaller, less dense dust particles. Nevertheless, the use of this standard practice will generate data that are consistent and comparable between operators performing micro-vacuum collection at a variety of sampling locations and sites. 2

1.6  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 D7144 - 05A(2016)
TitleStandard Practice for Collection of Surface Dust by Micro-vacuum Sampling for Subsequent Metals Determination
StatusCurrent
Publication Date01 October 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 Dust, Metals, Surfaces, Vacuum sampling
ICS71.040.99
PublisherASTM
FormatA4
DeliveryYes
Pages5
File Size81 KB
Price£40.00


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