ASTM F331-05
Historical Standard: ASTM F331-05 Standard Test Method for Nonvolatile Residue of Solvent Extract from Aerospace Components (Using Flash Evaporator)
SUPERSEDED (see Active link, below)
ASTM F331
1. Scope
1.1 This test method covers the determination of nonvolatile matter, that is, residue on evaporation, in solvent extract from aerospace components, using a rotary flash evaporator.
1.2 The procedure for extraction from components is described in practices such as Practice F 303. In cases in which analysis of particulate contamination is also required, before subjecting the extract to the following method, it should be processed in accordance with Practice F 311 (Note 0). Particle count analysis should then be performed in accordance with Test Methods F 312.
Note 0Membrane filters with a maximum extractable content of 0.5 weight % should be used on samples to be processed by this test method. Conventional membranes contain 5 to 10 % extractables. For obtaining very low background levels, consideration should be given to using membranes without grid marks.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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 (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
IEST Standard
IEST-STD-1246D Product Cleanliness Levels and Contamination Control ProgramASTM Standards
D1193 Specification for Reagent Water
F303 Practices for Sampling for Particles in Aerospace Fluids and Components
F311 Practice for Processing Aerospace Liquid Samples for Particulate Contamination Analysis Using Membrane Filters
F312 Test Methods for Microscopical Sizing and Counting Particles from Aerospace Fluids on Membrane Filters
Keywords
extractable content; flash evaporator; molecular contamination; nonvolatile residue; NVR; solvent;
ICS Code
ICS Number Code 49.035 (Components for aerospace construction)
DOI: 10.1520/F0331-05
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