Hazard search
Tridymite
- CAS number
- 15468-32-3
- Also known as
- Crystalline silica tridymite · Silica, crystalline tridymite · Tridymite (see silica, respirable crystalline) · Tridymite (Silica, cCystalline (respirable) by XRD) · Tridymite (Silica, Crystalline by IR) · α-Tridymite
UK workplace exposure limits
Our data hold no UK limit for this substance.
Sampling methods
| Method | Sampling | Medium | Analysis | Part numbers |
|---|---|---|---|---|
| MDHS 14/4 General inhalable or respirable dusts by gravimetric analysis (respirable) Method document (opens in a new tab) | Active (pump) | IOM & foam (or cyclone) with GF filter | 225-70A 225-772 225-69 225-58F | |
| MDHS 101/2 Respirable crystalline silica by IR or XRD Method document (opens in a new tab) | Active (pump) | Cyclone with 25mm, 5.0µm PVC GLA-5000 filter | 225-69 225-5-25 | |
| NIOSH 7500 Crystalline silica by XRD Method document (opens in a new tab) | Active (pump) | Cyclone & 5µm PVC filter in preloaded cassette | XRD | 225-01-02 225-803 225-1 225-8208A 225-3851-PW |
| NIOSH 7500 Crystalline silica by XRD Method document (opens in a new tab) | Active (pump) | Cyclone + 5µm PVC filter | 225-803 225-1 | |
| NIOSH 7601 Crystalline silica by VIS Method document (opens in a new tab) | Active (pump) | Cyclone & 5µm PVC filter in preloaded cassette | 225-01-02 225-803 225-1 | |
| NIOSH 7602 Crystalline silica by IR (KBr pellet) Method document (opens in a new tab) | Active (pump) | Cyclone & 5µm PVC filter in preloaded cassette | 225-01-02 225-803 225-1 | |
| NIOSH 7602 Crystalline silica by IR (KBr pellet) Method document (opens in a new tab) | Active (pump) | Cyclone + 5µm PVC filter | IR | 225-5-37-P 225-01-02 225-309 225-1 225-3851-PW |
| OSHA ID 142 | ||||
| OSHA ID-142 Quartz & Cristobalite by XRD Method document (opens in a new tab) | Active (pump) | Cyclone & 5µm PVC filter in preloaded cassette | 225-105 225-803 225-1 | |
| OSHA ID-142 Quartz & Cristobalite by XRD Method document (opens in a new tab) | Active (pump) | Cyclone + 5µm PVC filter |
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)