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ISO 1607-2:1989
M00001017
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ISO 1607-2:1989 Positive-displacement vacuum pumps -- Measurement of performance characteristics -- Part 2: Measurement of ultimate pressure
standard by International Organization for Standardization, 11/01/1989
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The considered pumps discharge the gas against atmosphere pressure and achieve a limiting inlet pressure of less than 100 Pa in one stage. The method adopted is that the ultimate pressure is measured at a specified temperature in a specified form of test dome attached to the inlet of the pump.