ISO 9300:1990 EN d2473132
Measurement of gas flow by means of critical flow Venturi nozzles
废止
发布日期 :
1990-07-23
实施日期 :
ISO 9300:2005 EN 140800fb
Measurement of gas flow by means of critical flow Venturi nozzles
废止
发布日期 :
2005-08-19
实施日期 :
ISO/TR 9824-2:1990 EN 05937c2f
Measurement of free surface flow in closed conduits — Part 2: Equipment
废止
发布日期 :
1990-05-09
实施日期 :