| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| instrument performance verification booklet | 1.04 | 0.1 | 881 | 81 | 43 |
| instrument | 0.7 | 0.2 | 2336 | 6 | 10 |
| performance | 1.94 | 0.6 | 5392 | 39 | 11 |
| verification | 1.64 | 0.6 | 3275 | 96 | 12 |
| booklet | 0.48 | 0.8 | 7684 | 15 | 7 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| calibration and verification of instruments | 1.04 | 1 | 1141 | 86 |
| chapter 3 validation of instrument | 1.63 | 0.2 | 1302 | 4 |
| instrument proficiency check pdf | 1.09 | 0.5 | 7723 | 66 |
