Hazard search
Formaldehyde
- CAS number
- 50-00-0
- Also known as
- Formaldehyde (Aldehydes, Screening) · Formaldehyde on dust (textile or wood) · Formalin* · Methanal · Methyl aldehyde
UK workplace exposure limits
| Limit | Value | Applies to |
|---|---|---|
| 8-hour TWA | 2 ppm | |
| 8-hour TWA | 2.5 mg/m³ | |
| 15-minute STEL | 2 ppm | |
| 15-minute STEL | 2.5 mg/m³ |
Sampling methods
| Method | Sampling | Medium | Analysis | Part numbers |
|---|---|---|---|---|
| MDHS 102 Aldehydes by HPLC Method document (opens in a new tab) | Active (pump) | Coated Glass fibre filters OR coated silica gel tube | HPLC | 225-9003 226-119 226-119-7 226-120 225-1 |
| MDHS 102 Aldehydes by HPLC Method document (opens in a new tab) | Passive | Passive sampler | 500-100 | |
| NIOSH 2016 Formaldehyde by HPLC/UV Method document (opens in a new tab) | Active (pump) | Coated silica gel tube (300/150mg) | HPLC-UV | 226-119 226-119-7 |
| NIOSH 2539 Aldehydes (screening) by GC-FID /MS Method document (opens in a new tab) | Active (pump) | Coated XAD-2 tube (120/60mg) | GC-FID & GC-MS | 226-118 |
| NIOSH 2541 Formaldehyde by GC-FID Method document (opens in a new tab) | Active (pump) | Coated XAD-2 tube (120/60mg) | GC-FID | 226-118 |
| NIOSH 3500 Formaldehyde by VIS Method document (opens in a new tab) | Active (pump) | 1µm PTFE filter with two impingers | VAS | 225-1709 225-2LF 225-26 225-36-1 225-22 225-1 |
| NIOSH 5700 Formaldehyde on dust by HPLC/UV Method document (opens in a new tab) | Active (pump) | 5µm, 25mm PVC filter in IOM | HPLC-UV | 225-5-25 225-70A |
| OSHA 52 Acrolein and Formaldehyde by GC -NSD Method document (opens in a new tab) | Active (pump) | Treated XAD-2 tube (150/75mg) | GC-NPD | 226-117 226-54 |
| OSHA 1007 Formaldehyde by LC -UV Method document (opens in a new tab) | Passive | Passive sampler | HPLC-UV | 500-100 |
| ASTM D5197 Formaldehyde & other carbonyl compounds by HPLC Method document (opens in a new tab) | Active (pump) | Treated silica gel tube | HPLC-UV | 226-119 226-119-7 226-120 |
| EPA IP-6A | Active (pump) | HPLC-UV | 226-119 226-120 | |
| EPA IP-6C | Passive | HPLC-UV | 500-100 | |
| EPA TO-11A | Active (pump) | HPLC-UV | 226-119 226-120 | |
| EPA TO-11A | Passive | HPLC-UV | 500-100 | |
| Non-agency Formaldehyde by Colorimetric analysis | Direct-reading | Gastec detector tube | 810-91 | |
| Non-agency Formaldehyde by Colorimetric analysis | Passive | Gastec Dosi-tube | 810-91D | |
| Other | Passive | HPLC-UV | 500-100 | |
| Other | Passive | DR | 810-91D |
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)