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Indium and compounds (as In)

CAS number
No CAS number
Also known as
In, Indium Sulfide, Indium Acetate, Indium Oxide, Indium Tin Oxide (ITO), Indium Hydroxide, Gallium Oxide

UK workplace exposure limits

LimitValueApplies to
8-hour TWA 0.1 mg/m³
15-minute STEL 0.3 mg/m³

Sampling methods

MethodSamplingMedium AnalysisPart numbers
MDHS 91/2
Metals & metalloids by XRF
Method document (opens in a new tab)
Active (pump) IOM with 0.8µm MCE filter 225-70A
225-19
NIOSH 7303
Elements by ICP (Hot block/HCl/HNO3 Digestion)
Method document (opens in a new tab)
Active (pump) 0.8µm MCE filter in 37mm cassette 225-3-01
225-1
NIOSH 7306
Elements by Cellulosic Internal Capsule Sampler ICP -AES
Method document (opens in a new tab)
Active (pump) Solu-CAP MCE Filters Preloaded in Cassettes and Cassette Holder 225-8517
225-1
OSHA ID-121
Metal & metalloid particulates by AAS
Method document (opens in a new tab)
Active (pump) 0.8µm MCE filter in cassette 225-3-01
225-1
BS ISO 15202-1: 2020
Determination of metals and metalloids in airborne particulate matter by ICP
Active (pump) IOM with 0.8µm MCE filter 225-70A
225-1930

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)