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WITHDRAWN ASTM D7847-12e1 1.12.2012 preview

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ASTM D7847-12e1

Standard Guide for Interlaboratory Studies for Microbiological Test Methods (Includes all amendments And changes 6/28/2017).

Automatically translated name:

Standard Guide for Interlaboratory Studies for Microbiological Test Methods

STANDARD published on 1.12.2012

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The information about the standard:

Designation standards: ASTM D7847-12e1
Note: WITHDRAWN
Publication date standards: 1.12.2012
SKU: NS-583343
The number of pages: 5
Approximate weight : 15 g (0.03 lbs)
Country: American technical standard
Category: Technical standards ASTM

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The category - similar standards:

Microbiology in general Lubricants, industrial oils and related products

Annotation of standard text ASTM D7847-12e1 :

Keywords:

bioburden, biodeterioration, biodiesel, biofuels, biomass, diesel, fuel, fuel-oil, fungi, gasoline, interlaboratory studies (ILS), microbial contamination, microbiology, microorganisms,, ICS Number Code 07.100.01 (Microbiology in general), 75.100 (Lubricants, industrial oils and related products)

Additional information

1. Scope

1.1 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.

1.1.1 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.

1.1.2 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 variability.

1.2 This guide addresses the unique considerations than 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 water-content (water activity <0.8) fluids.

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.

2. Referenced Documents

IP 385	Viable aerobic microbial content of fuels and fuel components boiling below 90C--Filtration and culture method
E2756-19	Standard Terminology Relating to Antimicrobial and Antiviral Agents
E1601-19	Standard Practice for Conducting an Interlaboratory Study to Evaluate the Performance of an Analytical Method
D6300-24	Standard Practice for Determination of Precision and Bias Data for Use in Test Methods for Petroleum Products, Liquid Fuels, and Lubricants
D6469-20	Standard Guide for Microbial Contamination in Fuels and Fuel Systems
D6974-20	Standard Practice for Enumeration of Viable Bacteria and Fungi in Liquid Fuels´Filtration and Culture Procedures
D7463-21	Standard Test Method for Adenosine Triphosphate (ATP) Content of Microorganisms in Fuel, Fuel/Water Mixtures, and Fuel Associated Water
D7464-20	Standard Practice for Manual Sampling of Liquid Fuels, Associated Materials and Fuel System Components for Microbiological Testing
D7687-23	Standard Test Method for Measurement of Cellular Adenosine Triphosphate in Fuel and Fuel-associated Water With Sample Concentration by Filtration
E1326-20	Standard Guide for Evaluating Non-culture Microbiological Tests
D156-23	Standard Test Method for Saybolt Color of Petroleum Products (Saybolt Chromometer Method)
D1129-13(2020)e2	Standard Terminology Relating to Water (Includes all amendments and changes 2/14/2024).
D4012-23a	Standard Test Method for Adenosine Triphosphate (ATP) Content of Microorganisms in Water (Includes all amendments and changes 11/9/2023).
D4175-23a	Standard Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants (Includes all amendments and changes 12/21/2023).
E1259-23	Standard Practice for Evaluation of Antimicrobials in Liquid Fuels Boiling Below 390 ?C

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