Priority : Local exhaust facility is not installed in chemical handling processes
The chemicals used in the workplace, including benzene or n-hexane
ex) adhesives, abstergent, rust inhibitors, paint, thinner, etc.
(except for small amount used as a test reagent products)
ㆍMajor : exposures have been identified & health risk assessment program is in place but controls are inadequate
Local exhaust facility is installed in chemical handling processes but not perform test of airflow or exhaust capacity shortage
ㆍMinor : Potential exposure are controlled and minimized & Industrial hygiene monitoring program is adequate but documentation & records are incomplete
* reference : Working environment measurement, improvement reports, chemicals list and MSDS