ISO 21360-2:2012
Vacuum technology - Standard methods for measuring vacuum-pump performance - Part 2: Positive displacement vacuum pumps
- Standard No.
- ISO 21360-2:2012
- Release Date
- 2012
- Published By
- International Organization for Standardization (ISO)
- Status
- Replace By
- ISO 21360-2:2020
- Latest
- ISO 21360-2:2020
- 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. The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. Part 1: General description 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 21360-1 and the following apply. 3.1 gas ballast gas or air inlet into the swept volume of the pump 3.2 water vapour tolerance pH 2O maximum water vapour pressure which can be conveyed by the pump without condensation in the pump NOTE If there is no problem of water vapour condensation, e.g. when an oil and water separation unit is included, maximum water vapour pressure is acceptable. 3.3 water vapour capacity mass of water which can be conveyed by the pump without condensation per time 3.4 swept volume VSW input volume, which is conveyed by the pump during one cycle 1
ISO 21360-2:2012 history
- 2020 ISO 21360-2:2020 Vacuum technology — Standard methods for measuring vacuum-pump performance — Part 2: Positive displacement vacuum pumps
- 2012 ISO 21360-2:2012 Vacuum technology - Standard methods for measuring vacuum-pump performance - Part 2: Positive displacement vacuum pumps
