Hazard search
Propanoic acid
- CAS number
- 79-09-4
- Also known as
- Carboxyethane · Ethanecarboxylic acid · Ethylformic acid · Metacetonic acid · Methyl acetic acid · Propionic acid · Propionic acid (see online Passive Sampling Guide)
UK workplace exposure limits
| Limit | Value | Applies to |
|---|---|---|
| 8-hour TWA | 10 ppm | |
| 8-hour TWA | 31 mg/m³ | |
| 15-minute STEL | 15 ppm | |
| 15-minute STEL | 46 mg/m³ |
Sampling methods
| Method | Sampling | Medium | Analysis | Part numbers |
|---|---|---|---|---|
| OSHA CSI | Active (pump) | GC-FID | 226-15 | |
| OSHA PV2293 Propionic acid by gas chromatography (GC) with a flame ionization detector (FID) Method document (opens in a new tab) | Active (pump) | Sorbent Tube | IC | 226-15 |
| Non-agency Propionic acid by Colorimetric analysis | Direct-reading | Gastec detector tube | 810-81 810-81L | |
| Non-agency VOCs by solvent desorption and GC-FID Method document (opens in a new tab) | Passive | Passive sampler | 575-001 575-002 | |
| Non-agency Propionic acid by GC-FID | Passive | Passive sampler | 575-003 | |
| Other | Passive | 575-001 |
Methods and limits as published by their agencies and summarised by SKC; check the current method and the limit that applies to you before sampling.
Source: SKC Ltd (UK), Hazard Search, used with SKC's permission (opens in a new tab); SKC Inc. (USA), Sampling Guides, used with SKC's permission (opens in a new tab)