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Toxicity Standards

Toxicity Standards

The Toxicity (TWA and STEL) data quoted in the pure gas PDF files are taken from the National Occupational Health and Safety Council (NOHSC) of Australia document :

Exposure Standards for Atmospheric Contaminants in the Occupational Environment. 

Guidance Note 
[(NOHSC: 3008(1996)] 

and 

National Exposure Standards 
[NOHSC: 1033(1995)]

This document may be obtained from here

The determination of toxicity as expressed in terms of a compound’s LC50 (Lethal concentration for 50%). The method and data are provided in:

International Standard ISO 10298 1995(E) “Determination of toxicity of a gas or gas mixture.