Hazard search
Potassium
- CAS number
- 7440-09-7
- Also known as
- K · Potassium & compounds · Potassium (Elements by Cellulosic Internal Capsule Sampler) · Potassium (Elements by ICP Aqua Regia Ashing) · Potassium (Elements by ICP HNO3/HClO4 Ashing)
UK workplace exposure limits
Our data hold no UK limit for this substance.
Sampling methods
| Method | Sampling | Medium | Analysis | Part numbers |
|---|---|---|---|---|
| NIOSH 7300 Elements by ICP (Nitric/perchloric acid ashing) Method document (opens in a new tab) | Active (pump) | 0.8µm MCE filter in 37mm cassette | ICP-AES | 225-3-01 225-1 |
| NIOSH 7301 Elements by ICP (Aqua regia ashing) Method document (opens in a new tab) | Active (pump) | 0.8µm MCE filter or 5µm PVC filter in 37mm cassette | ICP-AES | 225-3-01 225-803 225-1 |
| 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 | 225-3-01 225-1 | |
| NIOSH 7306 Elements by Cellulosic Internal Capsule Sampler by ICP -AES Method document (opens in a new tab) | Active (pump) | 0.8µm MCE filter in cassette with Solu-CAP | 225-8517 225-1 | |
| NIOSH 7306 Elements by Cellulosic Internal Capsule Sampler ICP -AES Method document (opens in a new tab) | Active (pump) | Solu-CAP MCE Filters Preloaded in Cassettes and Cassette Holder | ICP-AES | 225-8517 225-1 |
| OSHA ID 121 | Active (pump) | AA or AES | 225-3-01 225-1 | |
| OSHA ID-121 Metal & metalloid particulates by AAS Method document (opens in a new tab) | Active (pump) | 0.8µm MCE filter in cassette | 225-3-01 225-1 |
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)