机动车排放检测用标准气体(部分特例)
用途 |
组分名称及常用浓度范围 |
平衡气 |
工况法检测 |
NO 5-5000ppm |
N2 |
CO 1-10000ppm |
N2 |
|
C3H8 1-10000ppm |
N2 |
|
CO2 1-10000ppm |
N2 |
|
CH4 1-10000ppm |
N2 |
|
C2H6 1-10000ppm |
N2 |
|
正己烷 1-10000ppm |
N2 |
|
简易工况法检测 |
CO 0.5%-8%,CO2 4%-12%,C3H8 200ppm-3200ppm,NO 300-3000ppm |
N2 |
CO 2.5%,CO2 10%,C3H8 3200ppm |
N2 |
|
怠速、双怠 |
CO 1.5%-5%,C3H8 800ppm-3200ppm |
N2 |
速排放检测 |
||
仪器调零 |
O2 19%-21% |
N2 |
燃烧气 |
H2 38%-42% |
He |