GB/T 11798.3-2001 in English

本标准规定了二组份汽油车排气分析仪的检定技术要求和检定方法。二组份汽油车排气分析仪为应用不分光红外线原理检测汽油车排气中的CO、HC成分。四组汽油车排气分析仪为为应用不分光红外线原理检测汽油车排气中的CO、HC、CO?成分，应用电化学原理检测汽油车排气中的O?成分。本标准适用于机动车安全检测用汽油车排气分析仪的检定。

Scope

This standard specifies the verification technical requirements and verification methods for two-component gasoline vehicle exhaust analyzers and four-component gasoline vehicle exhaust analyzers (hereinafter referred to as instruments). The two-component gasoline vehicle analyzer uses the principle of non-spectral infrared to detect the CO and HC components in the exhaust gas of gasoline vehicles. The four-component gasoline vehicle analyzer uses the principle of non-spectral infrared to detect CO, HC, CO₂ components in gasoline vehicle exhaust, and uses electrochemical principles to detect O₂ components in gasoline vehicle exhaust . This standard applies to the verification of gasoline vehicle exhaust gas analyzers for motor vehicle safety testing.