ASTM D3943 Standard Test Method for Total Molybdenum in Fresh Alumina-Base Catalysts
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ASTM International
Standard Test Method for Total Molybdenum in Fresh Alumina-Base Catalysts
N D3943
Annotation
This test method covers the determination of molybdenum in alumina-base catalysts and has been cooperatively tested at molybdenum concentrations from 8 to 18 weight %, expressed as MoO3. Any component of the catalyst other than molybdenum such as iron, tungsten, etc., which is capable of being oxidized by either ferric or ceric ions after being passed through a zinc-amalgam reductor column (Jones reductor) will interfere.
The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
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.
Автоматический перевод:
Стандартный метод тестирования для всего молибдена в новых основных окисью алюминия катализаторах
Этот метод тестирования покрывает определение молибдена в основных окисью алюминия катализаторах и был согласованно протестирован при концентрациях молибдена от 8 до 18% веса, выраженного как MoO3. Любой компонент катализатора кроме молибдена, такого как железо, вольфрам, и т.д., который способен к тому, чтобы быть оксидированным или железными или ceric ионами, будучи переданным через цинковую амальгаму reductor столбец (Джонс reductor) вмешается.
