
Measurement of fluid flow in closed conduits; Velocity-area methods of flow measurement in swirling or asymmetric flow conditions in circular ducts by means of current-meters or Pitot static tubes
出版:International Organization for Standardization

专家解读视频
1ED 1983
BS 1042-2.3:1984 - Equivalent
NF ISO 7194:1993 - Identical
NBN E 17 003:1985 - Identical
NBN E 17 004:1988 - Identical