GB/T 1236-2017 Industrial fan—Performance testing using standardized airways

IEC 60034-2:1972 Rotating electrical machines; part 2: methods for determining losses and efficiency of rotating electrical machinery from tests (excluding machines for traction vehicules)
IEC 60051-2 Direct acting indicating analogue electrical measuring instruments and their accessories - Part 2: Special requirements for ammeters and voltmeters*， 2018-07-31 Update
IEC 60051-3 Direct acting indicating analogue electrical measuring instruments and their accessories - Part 3: Special requirements for wattmeters and varmeters*， 2018-07-31 Update
IEC 60051-4 Direct acting indicating analogue electrical measuring instruments and their accessories title - Part 4: Special requirements for frequency meters*， 2018-07-31 Update
ISO 3966 Measurement of fluid flow in closed conduits — Velocity area method using Pitot static tubes*， 2020-07-20 Update
ISO 5167-1 Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full — Part 1: General principles and requirements*， 2022-06-16 Update
ISO 5168 Measurement of fluid flow - Procedures for the evaluation of uncertainties
ISO 5221 Air distribution and air diffusion; Rules to methods of measuring air flow rate in an air handling duct

2017 GB/T 1236-2017 Industrial fan—Performance testing using standardized airways
2000 GB/T 1236-2000 Industrial fans-Performance testing using standardized airways
1985 GB 1236-1985 Test method for aerodynamic performance of ventilator

GB/T 1236-2017Industrial fan—Performance testing using standardized airways