ASTM-E1731 › Historical Revision Information
Standard Test Method for Gravimetric Determination of Nonvolatile Residue from Cleanroom Gloves
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Scope
1.1 This test method covers the determination of solvent extractable nonvolatile residue (NVR) from gloves used in cleanrooms where spacecraft are assembled, cleaned, or tested.
1.2 The NVR of interest is that which can be extracted from gloves using a specified solvent that has been selected for its extracting qualities, or because it is representative of solvents used in the particular facility. Alternative solvents may be used, but since their use may result in different values being generated, they must be identified in the procedure data sheet.
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 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.
Significance and Use
The NVR obtained by this test method is that amount which is available for release by the gloves onto handled surfaces.
Evaporation of solvent at the stated temperature is to quantify the NVR that can be expected to exist at room temperature, since the slight difference between room temperature and the test temperature is not likely to result in significant variances.
This method may be more aggressive than necessary to determine the suitability of cleanroom gloves that are restricted to dry operations only.
Various other methods exist for determining NVR, for example Practice G120 and IES-RP-CC005. This test is not intended to replace test methods used for other purposes.
Keywords
cleanroom gloves; gloves; non-volatile residue; NVR; Cleanrooms (materials/applications); Gloves; Gravimetric determination; Nonvolatile residue (NVR); Residue; ICS Number Code 49.025.99 (Other materials); 71.040.50 (Physicochemical methods of analysis)
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15.03 (Space Simulation; Aerospace and Aircraft; Composite Materials)
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Document Number
ASTM-E1731-11
Revision Level
2011 EDITION
Status
Superseded
Modification Type
Revision
Publication Date
June 15, 2011
Document Type
Test Method
Page Count
5 pages
Committee Number
E21.05