Hazard search
Calcium oxide - inhalable fraction
- CAS number
- 1305-78-8
- Also known as
- Calcium oxide · Calcium oxide (calcium) · Calcium oxide (Elements by ICP HNO3 Digestion) · Calcium oxide - respirable fraction · Lime · Quicklime
UK workplace exposure limits
| Limit | Value | Applies to |
|---|---|---|
| 8-hour TWA | 2 mg/m³ | Calcium oxide - inhalable fraction |
| 8-hour TWA | 1 mg/m³ | Calcium oxide - respirable fraction |
| 15-minute STEL | 4 mg/m³ | Calcium oxide - respirable fraction |
Sampling methods
| Method | Sampling | Medium | Analysis | Part numbers |
|---|---|---|---|---|
| MDHS 14/4 General inhalable or respirable dusts by gravimetric analysis (total inhalable) Method document (opens in a new tab) | Active (pump) | IOM sampler | 225-70A | |
| MDHS 14/4 General inhalable or respirable dusts by gravimetric analysis (respirable) Method document (opens in a new tab) | Active (pump) | IOM sampler & foam, or cyclone | 225-70A 225-772 225-69 | |
| NIOSH 7020 CALCIUM and compounds, as Ca by AA-F Method document (opens in a new tab) | Active (pump) | Filter Cassette | AA-F | 225-3-01 225-1 225-3100 |
| NIOSH 7303 Elements by ICP (Hot block/HCl/HNO3 Digestion) Method document (opens in a new tab) | Active (pump) | 0.8µm MCE filter in 37mm cassette | ICP-AES | 225-3-01 225-1 |
| OSHA ID 121 | Active (pump) | AA or AES | 225-3-01 225-1 | |
| OSHA ID-121 Metal & metalloid particulates in Workplace Atmospheres by AA/AES Method document (opens in a new tab) | Active (pump) | 0.8µm MCE filter in cassette | 225-3-01 225-1 | |
| BS ISO 15202-1: 2020 Determination of metals and metalloids in airborne particulate matter by ICP | Active (pump) | IOM with 0.8µm MCE filter | 225-70A 225-1930 | |
| BS ISO 15202-1: 2020 Determination of metals and metalloids in airborne particulate matter by ICP | Active (pump) | IOM with 0.8µm MCE filter and foam | 225-70A 225-1930 225-772 |
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)