ASTM D7440 - 08(2015)E1 - Standard Practice for Characterizing Uncertainty in Air Quality Measurements

ASTM D7440 - 08(2015)E1

Standard Practice for Characterizing Uncertainty in Air Quality Measurements

Status : Current   Published : July 2015

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PDF

Format
HARDCOPY



1.1 This practice is for assisting developers and users of air quality methods for sampling concentrations of both airborne and settled materials in characterizing measurements as to uncertainty. Where possible, analysis into uncertainty components as recommended in the ISO Guide to the Expression of Uncertainty in Measurement (ISO GUM, ( 1)2) is suggested. Aspects of uncertainty estimation particular to air quality measurement are emphasized. For example, air quality assessment is often complicated by: the difficulty of taking replicate measurements owing to the large spatio-temporal variation in concentration values to be measured; systematic error or bias, both corrected and uncorrected; and the (rare) non-normal distribution of errors. This practice operates mainly through example. Background and mathematical development are relegated to appendices for optional reading.

1.2  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 D7440 - 08(2015)E1
TitleStandard Practice for Characterizing Uncertainty in Air Quality Measurements
StatusCurrent
Publication Date01 July 2015
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 Air quality, Characterizing uncertainty, Measurements
ICS13.040.20
PublisherASTM
FormatA4
DeliveryYes
Pages14
File Size254 KB
Price£47.00


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