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Significance and Use
1.2 The NVR of interest is that which is deposited on sampling plate surfaces at room temperature: it is left to the user to infer the relationship between the NVR found on the sampling plate surface and that found on any other surfaces.
1.3 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.
D1193 Specification for Reagent Water
E1234 Practice for Handling, Transporting, and Installing Nonvolatile Residue (NVR) Sample Plates Used in Environmentally Controlled Areas for Spacecraft
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
ISO Standards14951-3 Space Systems--Fluid Characteristics--Part 3: Nitrogen
U.S. Federal StandardFED-STD-209E Airborne Particulate Cleanliness Classes in Cleanrooms and Clean Zones
Institute of Environmental Sciences and TechnologyIEST-STD-CC1246 Product Cleanliness Levels and Contamination Control Program
American National Standards InstituteANSI/ASME B46.1-2009 Surface Texture (Surface Roughness, Waviness, and Lay)
ICS Number Code 49.025.01 (Materials for aerospace construction in general); 49.140 (Space systems and operations)
UNSPSC Code 25150000(Spacecraft)
ASTM E1235-12, Standard Test Method for Gravimetric Determination of Nonvolatile Residue (NVR) in Environmentally Controlled Areas for Spacecraft, ASTM International, West Conshohocken, PA, 2012, www.astm.orgBack to Top