BS ISO 21360-1:2012

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Vacuum technology. Standard methods for measuring vacuum-pump performance – General description

Published By	Publication Date	Number of Pages
BSI	2012	38

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Description

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PDF Pages	PDF Title
6	Foreword
7	Introduction
9	1 Scope 2 Normative references 3 Terms and definitions
11	4 Symbols and abbreviated terms
12	5 Test methods 5.1 Volume flow rate (pumping speed) measurement by the throughput method
16	5.2 Volume flow rate (pumping speed) measurement by the orifice method
21	5.3 Volume flow rate (pumping speed) measurement by the pump-down method
25	5.4 Measurement of the base pressure
26	5.5 Measurement of the compression ratio and the critical backing pressure
30	Annex A (informative) Mean free path of some important gases
31	Annex B (informative) Measuring uncertainties
34	Bibliography

Additional information

Status	Withdrawn
Title	Vacuum technology. Standard methods for measuring vacuum-pump performance – General description
Replaces	BS ISO 21360:2007
Publisher	BSI
Committee	MCE/8/-/4
Pages	38
Publication Date	2012-05-31
Withdrawn Date	2020-06-17
Replaced By	BS ISO 21360-1:2020
ISBN	978 0 580 76006 8
Standard Number	BS ISO 21360-1:2012
Identical National Standard Of	ISO 21360-1:2012
Descriptors	Performance testing, Vacuum measurement, Pumps, Mathematical calculations, Vacuum engineering, Compression ratios, Pressure measurement (fluids), Measurement characteristics, Flow measurement, Test equipment, Volume measurement, Vacuum pumps
ICS Codes	23.160 - Vacuum technology

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BS ISO 21360-1:2012

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