ASTM-F312:2008 Edition

$35.75

F312-08 Standard Test Methods for Microscopical Sizing and Counting Particles from Aerospace Fluids on Membrane Filters

Published By	Publication Date	Number of Pages
ASTM	2008	4

Guaranteed Safe Checkout

Category: ASTM

If you have any questions, feel free to reach out to our online customer service team by clicking on the bottom right corner. We’re here to assist you 24/7.
Email:[email protected]

Description

ASTM F312-08

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

ASTM F312

Scope

1.1 These 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:

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

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

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

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

1.4 These 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.

1.5 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.

Keywords

aerospace environments; aerospace fluids; aerospace gases; aerospace surfaces; membrane filter; microscopical counting particles; microscopical sizing particles; particulate matter contamination; Aerospace particulate contamination; Contamination–aerospace materials/applications; Counting; Membrane filters (MF)–aerospace fluids; Microscopic examination–aerospace materials; Particulate contamination (aerospace environments)

ICS Code

ICS Number Code n/a

DOI: 10.1520/F0312-08

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Terminology Summary of Test Methods Significance and Use
2	Apparatus Sampling Calibration Procedure
3	Calculation Report Precision and Bias Keywords X1. CALIBRATION X1.1 Calibration of Reticles X1.2 Calibration of Effective Filter Area X1.3 Calibration of Unit Area

Additional information

Standard Title	F312-08 Standard Test Methods for Microscopical Sizing and Counting Particles from Aerospace Fluids on Membrane Filters
Published Code	ASTM
Publication Date	2008
Pages Count	4