| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| hydrogen fluoride exposure limits | 0.05 | 0.7 | 3265 | 3 | 33 |
| hydrogen | 0.23 | 0.5 | 6220 | 20 | 8 |
| fluoride | 0.13 | 0.5 | 9781 | 27 | 8 |
| exposure | 0.87 | 1 | 7146 | 83 | 8 |
| limits | 1.47 | 0.9 | 4500 | 29 | 6 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| hydrogen fluoride exposure limits | 1.68 | 0.4 | 4045 | 3 |
| hydrogen chloride exposure limits | 1.47 | 0.7 | 9198 | 91 |
