BS ISO 21360-1:2012
$167.15
Vacuum technology. Standard methods for measuring vacuum-pump performance – General description
| Published By | Publication Date | Number of Pages |
| BSI | 2012 | 38 |
PDF Catalog
| 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 |
