This part of ISO 1607 specifies methods of measuring the volume r?te of flow of positive-displacement vacuum pumps.
The pumps considered are those which discharge the gas against atmospheric pressure and which achieve a limiting inlet pressure of less than 100 Pa* in one stage.
These pumps may be with or without baffle(s) or trap(s).
SIS SS-ISO 1607-1:1991 history
1991SIS SS-ISO 1607-1:1991 Positive-displacement vacuum pumps — Measurement of performance characteris- tics — Part 1: Measurement of volume r?te of flow (pumping speed)