Secondary gas flow standards-ВЕТУ 03-01-03-11/ ВЕТУ 03-01-04-12

Accuracy:
Measurement range from 1 m3/h to 7800 m3/h, environment - air, working pressure - close to atmospheric, installation of measuring instruments with a diameter up to 300 mm, expanded uncertainty U ≤ 0.15%
Measurement range from 1 m3/h to 2500 m3/h, environment - air, working pressure - up to 0.6 MPa, installation of measuring instruments with a diameter up to 200 mm, expanded uncertainty U ≤ 0.19%
Flow range (m3/h):
1.0 - 7800.0
Means that can be calibrated on the standard:
reference gas meters, gas meters
Connecting dimensions (DN, mm):
50, 80, 100, 150, 200, 250, 300
Scientific keeper of the standard:
Yurii Pelikan