Hazard search
Tetrasodium pyrophosphate
- CAS number
- 7722-88-5
- Also known as
- Sodium diphosphate · Sodium pyrophosphate
UK workplace exposure limits
| Limit | Value | Applies to |
|---|---|---|
| 8-hour TWA | 5 mg/m³ |
Sampling methods
| Method | Sampling | Medium | Analysis | Part numbers |
|---|---|---|---|---|
| OSHA ID 111 | Active (pump) | GR & IC | 225-5-37-P 225-1 225-2LF | |
| OSHA ID 121 | Active (pump) | AA or AES | 225-3-01 225-1 | |
| OSHA ID-111 Phosphoric acid by IC Method document (opens in a new tab) | Active (pump) | 0.8µm MCE filter with backup pad in 37mm cassette | 225-3-01 225-5 225-2LF 225-1 | |
| OSHA ID-121 Metal & metalloid particulates by AAS Method document (opens in a new tab) | Active (pump) | 0.8µm MCE filter with back-up pads | 225-3-01 225-5 225-2LF 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)