Table 5 Workplace environmental monitoring of chemicals by process
Variables | Volume (L) | Measuring position | Measuring time | Measurements (ppm) | Exposure limit | Measurement Way |
|---|---|---|---|---|---|---|
Cleaning | ||||||
Chlorine | 320.4 | RS | 10:01 ~ 15:21 | 0.0108 | 0.5 ppm | Filtration/IC |
Hydrochloric acid | 50.8 | RS | 11:15 ~ 15:17 | ND | 1.0 ppm | Solid/IC |
Sodium hydroxide | 30.0 | RS | 11:17 ~ 11:32 | ND | 2.0 mg/m3 | Filtration/AA |
Cleaning finish | ||||||
Chlorine | 324 | RS | 10:01 ~ 15:21 | 0.0107 | 0.5 ppm | Filtration/IC |
Hydrochloric acid | 55.9 | RS | 11:15 ~ 15:17 | ND | 1.0 ppm | Solid/IC |
Sodium hydroxide | 30.0 | RS | 11:17 ~ 11:32 | ND | 2.0 mg/m3 | Filtration/AA |
Evisceration | ||||||
Hydrochloric acid | 52.0 | RS | 11:15 ~ 15:17 | ND | 1.0 ppm | Filtration/IC |
Sodium hydroxide | 30.0 | RS | 11:17 ~ 11:32 | ND | 2.0 mg/m3 | Filtration/AA |