Hazard search

Arsenic trioxide

CAS number
1327-53-3
Also known as
Arsenic trioxide as AS · Arsenic(III) oxide · Arsenous acid anhydride · Arsenous oxide · White arsenic

UK workplace exposure limits

Our data hold no UK limit for this substance.

Sampling methods

MethodSamplingMedium AnalysisPart numbers
NIOSH 7901
Arsenic trioxide by AAS
Method document (opens in a new tab)
Active (pump) 0.8µm MCE filter AAS-GF 225-5
225-2LF
225-1

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)