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ASTM D7847

Standard Guide for Interlaboratory Studies for Microbiological Test Methods

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Organization: ASTM
Publication Date: 1 December 2012
Status: inactive
Page Count: 5
ICS Code (Microbiology in general): 07.100.01
ICS Code (Lubricants, industrial oils and related products): 75.100
scope:

Microbiological test methods present challenges that are unique relative to chemical or physical parameters, because microbes proliferate, die off and continue to be metabolically active in samples after those samples have been drawn from their source.

Microbial activity depends on the presence of available water. Consequently, the detection and quantification of microbial contamination in fuels and lubricants is made more complicated by the general absence of available water from these fluids.

Detectability depends on the physiological state and taxonomic profile of microbes in samples. These two parameters are affected by various factors that are discussed in this guide, and contribute to microbial data varia

This guide addresses the unique considerations that must be accounted for in the design and execution of interlaboratory studies intended to determine the precision of microbiological test methods designed to quantify microbial contamination in fuels, lubricants and similar low watercontent (water activity <0.8) fluids. 

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.

Document History

June 1, 2017
Standard Guide for Interlaboratory Studies for Microbiological Test Methods
Microbiological test methods present challenges that are unique relative to chemical or physical parameters, because microbes proliferate, die off and continue to be metabolically active in samples...
December 1, 2012
Standard Guide for Interlaboratory Studies for Microbiological Test Methods
Microbiological test methods present challenges that are unique relative to chemical or physical parameters, because microbes proliferate, die off and continue to be metabolically active in samples...
ASTM D7847
December 1, 2012
Standard Guide for Interlaboratory Studies for Microbiological Test Methods
Microbiological test methods present challenges that are unique relative to chemical or physical parameters, because microbes proliferate, die off and continue to be metabolically active in samples...

References

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