Hazard search

α-Methylstyrene

CAS number
98-83-9
Also known as
2-Phenyl-1-propene · 2-Phenylpropene · 2-Phenylpropene (alpha-methyl styrene) · alpha-Methyl styrene (Hydrocarbons, Aromatic) · alpha-Methyl styrene (see online Passive Sampling Guide) · Isopropenyl benzene

UK workplace exposure limits

LimitValueApplies to
8-hour TWA 50 ppm
8-hour TWA 246 mg/m³
15-minute STEL 100 ppm
15-minute STEL 491 mg/m³

Sampling methods

MethodSamplingMedium AnalysisPart numbers
MDHS 72
VOCs by thermal desorption and GC
Method document (opens in a new tab)
Active (pump) Tenax thermal desorption tube (250mg) TD, GC 226-357
MDHS 88
VOCs by solvent desorption and GC
Method document (opens in a new tab)
Passive Passive sampler GC-FID 575-002
MDHS 96
VOCs by solvent desorption and GC
Method document (opens in a new tab)
Active (pump) Charcoal tube (100/50mg) GC-FID 226-01
MDHS 104
VOCs by solvent desorption and GC
Method document (opens in a new tab)
Active (pump) Charcoal tube (100/50mg) 226-01
NIOSH 1501
Hydrocarbons (aromatic) by GC-FID
Method document (opens in a new tab)
Active (pump) Charcoal tube (100/50mg) GC-FID 226-01
EPA TO-17
Toxic Organic Compounds by thermal desorption and GC
Method document (opens in a new tab)
Active (pump) Thermal desorption tube 226-300
EPA TO-17
Toxic Organic Compounds by thermal desorption and GC
Method document (opens in a new tab)
Passive Passive sampler
Non-agency
VOCs by solvent extraction and GC
Method document (opens in a new tab)
Passive Anasorb CSC (500mg) passive sampler 690-105
Non-agency
VOCs by thermal desorption and GC
Method document (opens in a new tab)
Passive Anasorb GCB1 (370mg) or Tenax TA (265mg) passive sampler 690-101
690-104
Other Passive GC-FID 575-002
Other Passive TD, GC 690-101
690-104
Other Passive GC-FID 690-105
Other Internal Passive TD, GC 690-101
690-104
Other Internal Passive GC-FID 690-105

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)