PRANDTL SERIE FUME HOOD HIGH PERFORMANCE ENERGY SAVING JB/T6412, EN14175, ASHRAE110 Tested. Leakage rate of 99.99% sulfur hexafluoride is under 0.001PPM at 0.3m/s face velocity. ASHRAE 110-2016 AM Test 1 Flow Visualization Challenge. Local Visualization Challenge/Large Volume Visualization Challenge/ 2 Face Velocity Measurement 3 Tracer Gas Test. Closed-Loop Method/Tracer Gas Test/ Sash Movement Containment Test EN14175-3 standard 1 Face Velocity Measurement 2 Containment Test 3 Samplers Interior measuring plane 4 Samplers Exterior measuring plane 5 Containment Robustness 6 Test of Air Exchange Capacity VAV Performance Test 1 VAV face velocity measurement 2 VAV response time test 3 VAV equilibrium time test JB/T6412-1999 JB/T222-2007 Standard 1 Face velocity measurement 2 Resistance test 3 Response time test 4 Flow display test 5 Concentration test

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