Chemical, coal and petroleum
For specific information on each of the ERAs in this category, access the links below:
| ERA. 5 | Alcohol distilling | |
| ERA. 6 | Chemical manufacturing, processing or mixing | |
| ERA. 7 | Chemical storage | |
| ERA. 8 | Coke producing | |
| ERA. 9 | Gas producing | |
| ERA. 10 | Paint manufacturing | |
| ERA. 11 | Crude oil or petroleum product storing | |
| ERA. 12 | Oil refining or processing | |
| ERA. 13 | Fuel gas refining or processing |
Last updated: 23 November 2005