1. 1) ISO 14291:2012 Vacuum gauges — Definitions and specifications for quadrupole mass spectrometer (ISO, Ganeva, 2012).
2. 2) ISO/TS 20175:2018 Vacuum technology — Vacuum gauges — Characterization of quadrupole mass spectrometers for partial pressure measurement (ISO, Ganeva, 2018).
3. 5) M. Hirata : J. Vac. Soc. Jpn. 50, 507 (2007). (in Japanese).
4. 6) ISO/TS 20177:2018 Vacuum technology — Vacuum gauges — Procedures to measure and report outgassing rates (ISO, Ganeva, 2018).
5. 8) K.K. Murray et al. : Pure Appl. Chem. 85, 1515 (2013).