WES review - Release 12 (Formic acid and others)
Release 12 closed on Friday 13 March 2020.
Safe Work Australia is evaluating the Workplace exposure standards for airborne contaminants to ensure they are based on the highest quality, contemporary evidence and supported by a rigorous scientific approach.
We would like your feedback on the draft evaluation reports and recommendations. In particular comments of a technical nature are sought about:
- the toxicological information and data that the recommended workplace exposure standard is based upon, and
- the measurement and analysis information provided.
For more information on other chemicals and their release dates, please see the release schedule.
Comments are open from Friday 14 February 2020 and will close on 13 March 2020.
Chemicals open for comment this release:
| Chemical | CAS number | Revision Proposed? | Current TWA | Recommended TWA | ||
| ppm | mg/m3 | ppm | mg/m3 | |||
| 2,6-Di-tert-butyl-p-cresol | 128-37-0 | No – interim | – | 10 | – | 10 |
| Ethylenimine | 151-56-4 | Yes – interim | 0.5 | 0.88 | 5 ppb | – |
| Formic acid | 64-18-6 | No | 5 10 (STEL) | 9.4 19 (STEL) | 5 10 (STEL) | 9.4 19 (STEL) |
| Glyoxal | 107-22-2 | New | – | – | 0.042 | 0.1 |
| Grain dust (oats, wheat, barely) | Nil | Yes | – | 4 | – | 1.5 |
| Graphite (All forms except fibres) (Respirable dust) (Natural and synthetic) | 7782-42-5 | No | – | 3 | – | 3 |
| Hexachlorobenzene | 118-74-1 | New | – | – | – | 0.002 |
| Iron salts, soluble (as Fe) | Nil | No – interim | – | 1 | – | 1 |
| Alkyl mercury compounds | 7439-97-6 | No – interim | – | 0.01 | – | 0.01 |
| Mercury and compounds | 7439-97-6 | No – interim | – | Various | – | Various |
| Mesityl oxide | 141-79-7 | Yes | 15 25 (STEL) | 60 100 | 2 | 8.1 |
| Methomyl | 16752-77-5 | Yes | – | 2.5 | – | 0.2 |
| 1-Methoxy-2-propanol acetate | 108-65-6 | No | 50 100 (STEL) | 274 548 (STEL) | 50 100 (STEL) | 274 548 (STEL) |
| Methyl alcohol | 67-56-1 | Yes | 200 250 (STEL) | 262 328 (STEL) | 100 | 130 |
| 2-Methylbutyl acetate | 624-41-9 | New | – | – | 50 100 (STEL) | 266 532 (STEL) |
| Methyl demeton | 8022-00-2 | No – interim | – | 0.5 | – | 0.5 |
| 4,4’-methylene bis(2-chloroaniline) | 101-14-4 | No – interim | 0.02 | 0.22 | 0.02 | 0.22 |
| 4,4-Methylenedianiline | 101-77-9 | No | 0.1 | 0.81 | 0.1 | 0.81 |
| Methyl ethyl ketone peroxide | 1338-23-4 | No – interim | 0.2 (peak limitation) | 1.5 (peak limitation) | 0.2 (peak limitation) | 1.5 (peak limitation) |
| Methyl isoamyl ketone | 110-12-3 | Yes | 50 | 234 | 20 40 (STEL) | 93 186 (STEL) |
| Methylal | 109-87-5 | No | 1000 | 3110 | 1000 | 3110 |
| Methyl n-amyl ketone | 110-43-0 | No | 50 | 233 | 50 | 233 |
| Methyl tert-butyl ether | 1634-04-4 | Yes | 25 75 (STEL) | 92 275 (STEL) | 50 | 180 |
| Methyl vinyl ketone | 78-94-4 | New – interim | – | – | 0.2 (peak limitation) | 0.6 (peak limitation) |
| Metribuzin | 21087-64-9 | No | – | 5 | – | 5 |
| Mevinphos | 7786-34-7 | Yes | 0.01 (0.03) STEL) | 0.092 0.27 (STEL) | – | 0.01 |
| Mica | 12001-26-2 | No | – | 2.5 | – | 2.5 |
| Molybdenum (insoluble compounds) | 7439-98-7 | Yes | – | 10 | Various | Various |
| Molybdenum (soluble compounds) | 7439-98-7 | Yes | – | 5 | – | 0.5 |
| Morpholine | 110-91-8 | No | 20 | 71 | 20 | 71 |
| Naphthalene | 91-20-3 | Yes | 10 15 (STEL) | 52 79 (STEL) | 10 | 52 |
| Natural rubber latex | 900-04-6 | New – interim | – | – | – | 0.1 µg/m3 |
| Nitrous oxide | 10024-97-2 | Yes | 25 | 45 | 50 | 90 |
| N-methylaniline | 100-61-8 | No – interim | 0.5 | 2.2 | 0.5 | 2.2 |
| Note: | Chemicals scheduled for release not listed above have been deferred to future releases. | |||||
For any assistance in providing your comments please contact us at WESconsult@swa.gov.au.
