IS 8243 : Part 2 : 1993/ISO 1608-2 : 1989 Vapour vacuum pumps - Methods of measurement of performance characteristics Part 2 Measurement of critical backing pressure

National Foreword

This Indian Standard which is identical with ISO 1608-2 : 1989`Vapour vacuum pumps - Measurement of performance characteristics :Part 2 Measurement of critical backing pressure', issued by theInternational Organization for Standardization (ISO), was adoptedby the Bureau of Indian Standards on the recommendation of theChemical Engineering Plants and Related Equipment SectionalCommittee (HMD 17) and approval of the Heavy Mechanical EngineeringDivision Council.

This standard was first issued in 1976 as `Methods ofmeasurement of the performance characteristics of vapour vaccumpumps: Part 2 Measurement of critical backing pressure'. Consequentupon the publication of ISO 1607-2 : 1989, this standard (includingits title) has been revised by adopting ISO 1607-2 : 1989, to bringit in alignment with international practices.