KS B ISO 1607-1:2013 Positive-displacement vacuum pumps-Measurement of performance characteristics-Part 1:Measurement of volume rate of flow(pumping speed)
2013KS B ISO 1607-1:2013 Positive-displacement vacuum pumps-Measurement of performance characteristics-Part 1:Measurement of volume rate of flow(pumping speed)
0000 KS B ISO 1607-1-2004(2009)
2004KS B ISO 1607-1:2004 Positive-displacement vacuum pumps-Measurement of performance characteristics-Part 1:Measurement of volume rate of flow(pumping speed)