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Significance and Use
5.1 The NVR obtained by this test method is that amount which is available for release by wipers in normal use.
5.2 Evaporation of the 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 test temperature has not been shown to result in significant variances.
5.3 This test method may be more aggressive than necessary for the evaluation of wipers that will be restricted to dry use only.
5.4 Numerous other methods are being used to determine NVR. This test method is not intended to replace test methods used for other applications.
1.1 This test method covers the determination of solvent extractable nonvolatile residue (NVR) from wipers used in assembly, cleaning, or testing of spacecraft, but not from those used for analytical surface sampling of hardware.
1.2 The NVR of interest is that which can be extracted from cleanroom wipers using a specified solvent that has been selected for its extractive qualities. Alternative solvents may be selected, 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.
1.3.1 Exception—The inch-pound units are included for information only.
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
Other DocumentsIEST-RP-CC001 HEPA and ULPA Filters The use of Di Octyl Phthalate (DOP) in leak testing of filters or filter installation is not acceptable., Available from Institute of Environmental Sciences and Technology (IEST), Arlington Place One, 2340 S. Arlington Heights Rd., Suite 100, Arlington Heights, IL 60005-4516, http://www.iest.org. ISO 14644-1 Cleanrooms and Associated Controlled Environments, Classification of air cleanliness Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
D1193 Specification for Reagent Water
E2217 Practice for Design and Construction of Aerospace Cleanrooms and Contamination Controlled Areas
F24 Test Method for Measuring and Counting Particulate Contamination on Surfaces
F50 Practice for Continuous Sizing and Counting of Airborne Particles in Dust-Controlled Areas and Clean Rooms Using Instruments Capable of Detecting Single Sub-Micrometre and Larger Particles
ICS Number Code 49.025.99 (Other materials); 71.040.50 (Physicochemical methods of analysis)
UNSPSC Code 25150000(Spacecraft)
|Link to Active (This link will always route to the current Active version of the standard.)|
ASTM E1560-18, Standard Test Method for Gravimetric Determination of Nonvolatile Residue From Cleanroom Wipers, ASTM International, West Conshohocken, PA, 2018, www.astm.orgBack to Top