| Name | Content Value | Property | Name | Content Value | Property |
| H2 | >1801 | Danger | CH4 | >1001 | Danger |
| >701 | Abnormal | >401 | Abnormal | ||
| >101 | Attention | >121 | Attention | ||
| <100 | Normal | <120 | Normal | ||
| C2H6 | >151 | Danger | C2H4 | >201 | Danger |
| >101 | Abnormal | >101 | Abnormal | ||
| >66 | Attention | >51 | Attention | ||
| <65 | Normal | <50 | Normal | ||
| C2H2 | >35 | Danger | C2H2 | >2 | Attention |
| >10 | Abnormal | < 1 | Abnormal |