Hazard search
Octamethylcyclotetrasiloxane
- CAS number
- 556-67-2
- Also known as
- Cyclic dimethylsiloxane tetramer · Octamethylcyclotetrasiloxane (D4) · Siloxane (D4)
UK workplace exposure limits
Our data hold no UK limit for this substance.
Sampling methods
| Method | Sampling | Medium | Analysis | Part numbers |
|---|---|---|---|---|
| NIOSH 2549 VOCs (screening) by thermal desorption and GC -MS Method document (opens in a new tab) | Active (pump) | Anasorb GCB2/GCB1/Carbosieve S-111 thermal desorption tube | 226-330 | |
| Non-agency VOCs by solvent desorption and GC-FID Method document (opens in a new tab) | Passive | Anasorb CSC (350 mg) or Anasorb® 747 (500 mg) passive sampler | 575-001 575-002 | |
| Other | Passive | GC-FID | 575-001 | |
| Other | Passive | GC-FID | 575-002 |
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)