Division 2.2.1.1 Correcting the volume to standard conditions

The diluted exhaust gas volume, V, shall be corrected to standard conditions according to the following equation:

V_{mix} = V \times K_{1} \times (\frac{P_{B} - P_{1}}{T_{p}})

where:

K_{1} = \frac{273,15 (K)}{101,325 (kPa)} = 2,6961

P_B

is the test room barometric pressure, kPa;

P₁

is the vacuum at the inlet of the positive displacement pump relative to the ambient barometric pressure, kPa;

T_p

is the arithmetic average temperature of the diluted exhaust gas entering the positive displacement pump during the test, Kelvin (K).