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ASTM D2503-92(1997)
Standard Test Method for Relative Molecular Mass (Molecular Weight) of Hydrocarbons by Thermoelectric Measurement of Vapor Pressure
Automaticky preložený názov:
Štandardná skúšobná metóda pre relatívnej molekulovej hmotnosti ( molekulová hmotnosť ) uhľovodíkov podľa termoelektrický Meranie tlak pár
NORMA vydaná dňa 1.1.1992
Informácie o norme:
Označenie normy: ASTM D2503-92(1997)
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.1.1992
Kód tovaru: NS-20562
Počet strán: 3
Približná hmotnosť: 9 g (0.02 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Anotácia textu normy ASTM D2503-92(1997) :
Keywords:
hydrocarbons, molecular weight, osmometer, relative molecular mass, thermoelectric measurement, vapor pressure
Doplňujúce informácie
| 1. Scope |
|
1.1 This test method covers the determination of the average relative molecular mass (molecular weight) of hydrocarbon oils. It can be applied to petroleum fractions with molecular weights (relative molecular mass) up to 3000; however, the precision of the method has not been established above 800 molecular weight (relative molecular mass). The method should not be applied to oils having initial boiling points lower than 220°C. 1.2 Values stated in SI units are to be regarded as the standard. The values given in parentheses are provided for information purposes only. 1.3 This standard does not purport to address all of the safety problems, 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.> For specific hazard statements, 5.2.1, 5.2.3, and 5.2.3. |
