1) GB/T 1236-2017 Standardized duct performance test for industrial fans

2) AMCA210-07 Laboratory Methods of Testing Fans for Certified Aerodynamic Performance

The automatic control and measurement method of this test system adopts the design of centralized distributed measurement and system by computer, and the data system consists of the subordinate control machine which will collect the data and display it, and the superior main control computer which analyzes the data collected the subordinate control machine and issues set value instructions and data collection instructions to the subordinate control machine to complete the work of the whole system.

The measurement principle of this system is the obstruction type flow measurement principle, and the standard long diameter low-speed nozzle is used as the obstruction, and the air flow rate through the nozzle is measured measuring the static pressure difference between the two ends of the standard nozzle.

The measuring range of this test system is 2.5 to 250 (C). Static pressure range: 0-200mmAq.

New EU standard for range hoods IEC61591:202

GB/T 17713-2023 "Cooking fume extractors and other cooking fume exhaust devices"

IEC 1591 "Domestic range hoods - Methods of performance testing"