Vacuum technology. Standard methods for measuring vacuum-pump performance - Positive displacement vacuum pumps
Vacuum technology. Standard methods for measuring vacuum-pump performance - Positive displacement vacuum pumps
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1 Scope This part of ISO 21360 specifies methods for measuring the volume flow rate, base pressure, water vapour tolerance , power consumption, and the lowest start-up temperature of positive displacement vacuum pumps, which discharge gas against atmospheric pressure and with a usual base pressure <10 kPa. In this part of ISO 21360, it is necessary to use the determinations of volume flow rate and base pressure specified in ISO 21360-1. This part of ISO 21360 also applies to the testing of other types of pumps which can discharge gas against atmospheric pressure, e.g. drag pumps.
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