BS EN ISO 9300:2005
Measurement of gas flow by means of critical flow Venturi nozzles
Measurement of gas flow by means of critical flow Venturi nozzles
- Статус документа:
- Отменён
- Формат:
- Электронный (PDF)
- Дата публикации:
- 21 октября 2005 г.
- ICS:
- 17.120.10
- Технический комитет:
- CEN
- SKU:
- BS EN ISO 9300:2005
Abstract
BS EN ISO 9300 specifies the geometry and method of use (installation in a system and operating conditions) of critical flow Venturi nozzles (CFVN) used to determine the mass flow-rate of a gas flowing through a system. It also gives the information necessary for calculating the flow-rate and its associated uncertainty. It applies to Venturi nozzles in which the gas flow accelerates to the critical velocity at the throat (this being equal to the local sonic velocity). At the critical velocity, the mass flow-rate of the gas flowing through the Venturi nozzle is the maximum possible for the existing upstream conditions.
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ISO 9300:2005
ОтменёнMeasurement of gas flow by means of critical flow Venturi nozzles
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