This list contains the indicative occupational exposure limit values (IOELVs) from Commission Directive 2000/39/EC. Member States are required to bring into force the laws, regulations and administrative provisions necessary to comply with this Directive, which establishes values for reference period of eight-hour time weighted average and for a short-term period of 15 minutes.
| Long-term Exposure Limit (LTEL) Values | mg/m3 | 36 mg/m3 |
| ppm | 10 ppm | |
| Short-term Exposure Limit (STEL) Values | mg/m3 | 72 mg/m3 |
| ppm | 20 ppm | |
| Skin Designation | Yes |
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