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ASTM F 312 : 2008 : R2016

ASTM F 312 : 2008 : R2016

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Standard Test Methods for Microscopical Sizing and Counting Particles from Aerospace Fluids on Membrane Filters

Available format(s)

Hardcopy , PDF

Superseded date

17-10-2023

Language(s)

English

Published date

13-10-2016

Publisher

American Society for Testing and Materials

These test methods cover the determination of the size distribution and quantity of particulate matter contamination from aerospace fluids isolated on a membrane filter.

1.1These test methods cover the determination of the size distribution and quantity of particulate matter contamination from aerospace fluids isolated on a membrane filter. The microscopical techniques described may also be applied to other properly prepared samples of small particles. Two test methods are described for sizing particles as follows:

1.1.1Test Method A—Particle sizes are measured as the diameter of a circle whose area is equal to the projected area of the particle.

1.1.2Test Method B—Particle sizes are measured by their longest dimension.

1.2The test methods are intended for application to particle contamination determination of aerospace fluids, gases, surfaces, and environments.

1.3The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.4These test methods do not provide for sizing particles smaller than 5 μm.

Note 1:Results of these methods are subject to variables inherent in any statistical method. The use of these methods as a standard for initially establishing limits should be avoided unless ample tolerances are permissible.

1.5This 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.

Committee
E 21
DocumentType
Test Method
Pages
4
ProductNote
Reconfirmed 2016
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy
Supersedes

ASTM E 1548 : 2009 : R2022 Standard Practice for Preparation of Aerospace Contamination Control Plans
ASTM D 6224 : 2022 Standard Practice for In-Service Monitoring of Lubricating Oil for Auxiliary Power Plant Equipment
ASTM D 6439 : 2023 Standard Guide for Cleaning, Flushing, and Purification of Steam, Gas, and Hydroelectric Turbine Lubrication Systems
ASTM F 303 : 2008 : R2016 Standard Practices for Sampling for Particles in Aerospace Fluids and Components
ASTM E 1216 : 2021 Standard Practice for Sampling for Particulate Contamination by Tape Lift
ASTM D 7670 : 2010 : R2021 Standard Practice for Processing In-service Fluid Samples for Particulate Contamination Analysis Using Membrane Filters
ASTM E 2088 : 2006 : R2021 Standard Practice for Selecting, Preparing, Exposing, and Analyzing Witness Surfaces for Measuring Particle Deposition in Cleanrooms and Associated Controlled Environments
ASTM D 4898 : 2016 Standard Test Method for Insoluble Contamination of Hydraulic Fluids by Gravimetric Analysis
ASTM G 121 : 2018 Standard Practice for Preparation of Contaminated Test Coupons for the Evaluation of Cleaning Agents
ASTM E 2090 : 2012 : R2020 Standard Test Method for Size-Differentiated Counting of Particles and Fibers Released from Cleanroom Wipers Using Optical and Scanning Electron Microscopy
ASTM D 4378 : 2022 Standard Practice for In-Service Monitoring of Mineral Turbine Oils for Steam, Gas, and Combined Cycle Turbines
ASTM F 311 : 2008 : R2020 Standard Practice for Processing Aerospace Liquid Samples for Particulate Contamination Analysis Using Membrane Filters
ASTM F 331 : 2013 : R2020 Standard Test Method for Nonvolatile Residue of Solvent Extract from Aerospace Components (Using Flash Evaporator)
ASTM D 4174 : 2023 Standard Practice for Cleaning, Flushing, and Purification of Petroleum Fluid Hydraulic Systems

ASTM F 302 : 2009 : R2021 Standard Practice for Field Sampling of Aerospace Fluids in Containers
ASTM F 318 : 2006 Standard Practice for Sampling Airborne Particulate Contamination in Cleanrooms for Handling Aerospace Fluids
ASTM F 314 : 1970 : R1980 : EDT 1 Methods of Test for Identification of Metallic and Fibrous Contaminants in Aerospace Fluids
ASTM F 302 : 2009 : R2015 Standard Practice for Field Sampling of Aerospace Fluids in Containers
ASTM F 314 : 1970 : R1980 Methods of Test for Identification of Metallic and Fibrous Contaminants in Aerospace Fluids (Withdrawn 1990)

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