1.21 Spillover of gas flow rates
1.21.1
A measurement shall be performed with a calibration gas mixture that is initially supplied at the sampling device at a gas flow rate greater than the minimum required by the gas analytical system according to the manufacturer. During the measurement, the gas flow rate shall be reduced until the low flow indicator responds according to the requirements of R 144-1, 5.1.5 and gives a signal according to the requirement of R 144-1, 5.5.2.
1.21.2
The test is repeated according to 1.18.1, but starting from a gas flow rate smaller than the maximum required by the gas analytical system according to the manufacturer. During the measurement, the gas flow rate shall be increased until the flow rate indicator responds according to the requirements of R 144-1, 5.1.5 and gives a signal according to the requirement of R 144-1, 5.5.2.
1.21.3
During the test, measurements shall be performed using each of the CGMs recommended in 1.2.