Hazard search

Calcium silicate (inhalable)

CAS number
1344-95-2
Also known as
Calcium monosilicate · Calcium silicate (particulates, respirable) · Calcium silicate (particulates, total) · Calcium silicate (respirable)

UK workplace exposure limits

LimitValueApplies to
8-hour TWA 10 mg/m³ Calcium silicate (inhalable)
8-hour TWA 4 mg/m³ Calcium silicate (respirable)

Sampling methods

MethodSamplingMedium AnalysisPart numbers
MDHS 14/4 Active (pump) GR 225-70A
225-58F
225-772
225-69
NIOSH 500
Particulates not otherwise regulated (total inhalable) by Gravimetric analysis
Method document (opens in a new tab)
Active (pump) 37mm, 5µm PVC filter in cassette GR 225-5-37-P
225-2LF
225-1
NIOSH 600
Particulates not otherwise regulated (respirable) by Gravimetric analysis
Method document (opens in a new tab)
Active (pump) Cyclone & 5µm PVC filter in cassette GR 225-01-02
225-5-37-P
225-3LF
225-1
225-8208A
225-3851-PW

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)