Exposure values
| CAS number | 107-13-1 |
|---|---|
| Current WES (to 30 Nov 2026) | 2 ppm (4.3 mg/m³) TWA [Sk, Sen] |
| WEL (from 1 Dec 2026) | No WEL: non-threshold genotoxic carcinogen (WEL list Appendix B). Eliminate, or minimise exposure so far as reasonably practicable |
| Change | Limit removed: non-threshold genotoxic carcinogen |
| Notations, WES (to 30 Nov 2026) | Sk: skin absorption may be a significant source of exposure; Sen: sensitiser (WES list) |
| Notations, WEL (from 1 Dec 2026) | none |
| Notation change | none |
| Other names | Vinyl cyanide |
TWA: 8-hour time-weighted average. STEL: 15-minute short-term exposure limit. ppm values apply to vapours and gases; mg/m³ to all forms.
What to do in your register
- There is no numerical limit from 1 December 2026: SWA lists this as a non-threshold genotoxic carcinogen, with no level of exposure known to be safe.
- Don't record the old WES value as the limit after 30 November 2026. Record that exposure must be eliminated, or minimised so far as is reasonably practicable.
- Removing the number doesn't make the substance less hazardous. Review substitution and controls for every use on your register.
- Match your register row by CAS number (107-13-1) from section 3 of the safety data sheet (SDS), not by trade name.
Information only, not WHS or occupational hygiene advice. If you need to know actual exposures, talk to an occupational hygienist.
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Source
Values for this substance: Safe Work Australia, Changes to Workplace Exposure Limits, effective from 1 December 2026 (comparison table last updated 29 May 2025). Full lists: Safe Work Australia WEL list, WES list and WES-to-WEL comparison table.
© Commonwealth of Australia (Safe Work Australia), licensed under CC BY 4.0. Changes: values machine-read from SWA's files, reformatted and combined into one WES-to-WEL comparison per substance. This site isn't affiliated with or endorsed by Safe Work Australia.
Dataset swa-2026-10-11, every value cross-checked against the PDF lists. Page generated 2026-10-12.