Hazard search

Propylene glycol (particulates)

CAS number
57-55-6
Also known as
1,2-Dihydroxypropane · 1,2-Propanediol · 1,2-Propylene glycol · Methyl ethylene glycol · Propane-1,2-diol · Propane-1,2-diol (particulates) · Propane-1,2-diol (total vapour & particulates) · Propylene glycol · Propylene glycol (vapour and particulates)

UK workplace exposure limits

LimitValueApplies to
8-hour TWA 10 mg/m³ Propylene glycol (particulates)
8-hour TWA 150 ppm Propylene glycol (vapour and particulates)
8-hour TWA 474 mg/m³ Propylene glycol (vapour and particulates)

Sampling methods

MethodSamplingMedium AnalysisPart numbers
MDHS 14/4
General inhalable or respirable dusts by gravimetric analysis
Method document (opens in a new tab)
Active (pump) IOM with GF filter GR 225-70A
225-58F
NIOSH 5523
Glycols by GC-FID
Method document (opens in a new tab)
Active (pump) OVS-7 tube GC-FID 226-57
224-29V
OSHA PV2051
Propylene glycol by GC-FID
Method document (opens in a new tab)
Active (pump) OVS-7 tube GC-FID 226-57

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)