Division 1 Two classes (0 and I) are being defined for exhaust gas analysers. The relevant minimum measuring ranges for these classes are shown in Table 1.
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| Table 1 | |
| Classes and measuring ranges | |
|---|---|
| Parameter | Classes 0 and I |
| CO fraction | from 0 to 5 % vol |
| CO2 fraction | from 0 to 16 % vol |
| HC fraction | from 0 to 2 000 ppm vol |
| O2 fraction | from 0 to 21 % vol |
| λ | from 0,8 to 1,2 |