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Standard Test Method for Measurement of Airborne Metal and Metal Oxide Nanoparticle Surface Area Concentration in Inhalation Exposure Chambers using Krypton Gas Adsorption
Automaticky preložený názov:
Štandardná skúšobná metóda pre meranie Airborne kovov a kovových Oxide povrchu nanočastíc Area Koncentrácia vdýchnutí komorách expozíciu pomocou Krypton plynu Adsorpcia
NORMA vydaná dňa 1.9.2013
Označenie normy: ASTM E2864-13
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.9.2013
Kód tovaru: NS-46169
Počet strán: 6
Približná hmotnosť: 18 g (0.04 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Keywords:
BET surface area, gas sorption analysis, inhalation exposure, krypton, metal and metal oxide nanoparticles, multipoint surface area, outgassing, physical adsorption, surface area, ICS Number Code 07.120 (Nanotechnologies), 49.025.05 (Ferrous alloys in general)
Significance and Use | ||||||||||||
5.1 A tiered strategy for characterization of nanoparticle properties is necessary to draw meaningful conclusions concerning dose-response relationships observed during inhalation toxicology experiments. This tiered strategy includes characterization of nanoparticles as produced (that is, measured as the bulk material sold by the supplier) and 5.2 Test Methods B922 and C1274 and ISO Standards 9277 and 18757 exist for determination of the 1.1 This test method covers determination of surface area of airborne metal and metal oxide nanoparticles in inhalation exposure chambers for inhalation toxicology studies. Surface area may be measured by gas adsorption methods using adsorbates such as nitrogen, krypton, and argon (Brunauer et al., 1938; Anderson, 1975; Gregg and Sing, 1982) 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. State all numerical values in terms of SI units unless specific instrumentation software reports surface area using alternate units. 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. |
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2. Referenced Documents | ||||||||||||
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1.5.1994
1.9.2013
1.6.2003
1.6.2007
1.8.2012
1.11.2011
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