(a) Scope and frequency. If you use aCLD analyzer to measure NOX, verifythe amount of H2O and CO2 quenchafter installing the CLD analyzer andafter major maintenance.
CFR 40-1065.370-2014 history
2014CFR 40-1065.370-2014 Protection of Environment. Part1065:Engine-testing procedures. Section1065.370:CLD CO2 and H2O quench verification.