NEN EN ISO 9906:2000被替代
Rotodynamic Pumps - Hydraulic Performance Acceptance Tests - Grades 1 And 2
出版：Nederlands Normalisatie Instituut
专家解读视频
Specifies hydraulic performance tests for acceptance of rotodynamic pumps (centrifugal, mixed flow and axial pumps, hereinafter simply designated as "pumps") and is applicable both to a pump itself without any fittings and to a combination of a pump associated with all or part of its upstream and/or downstream fittings and to pumps of any size and to any pumped liquids behaving as clean cold water and. Contains two grades of accuracy of measurement: grade 1 for higher accuracy, and grade 2 for lower accuracy. These grades include different values for tolerance factors, for allowable fluctuations and uncertainties of measurement.
Supersedes NEN 22548 and NEN ISO 3555. (11/2003) Draft issued in July 2008. (07/2008)
SS EN ISO 9906 Ed. 1 (2000) - Identical
ISO 9906:1999 - Identical
NS EN ISO 9906 Ed. 1 (2000) - Identical
I.S. EN ISO 9906:2000 - Identical
UNI EN ISO 9906:2002 - Identical
NBN EN ISO 9906:2000 - Identical
NF EN ISO 9906:2000 - Identical
DIN EN ISO 9906 (2002-08) - Identical
BS EN ISO 9906:2000 - Identical
SN EN ISO 9906:1999 - Identical
ONORM EN ISO 9906:2002 - Identical
