Directive 91/322/EEC - indicative limit values

Latest update: 07/04/2020
of 29 May 1991 on establishing indicative limit values by implementing Council Directive 80/1107/EEC on the protection of workers from the risks related to exposure to chemical, physical and biological agents at work.

This Directive is based on Directive 80/1107/EEC, which was repealed and replaced by Directive 98/24/EC. It sets out limit values for certain chemical substances in its Annex. The limit values for 17 of these substances were later on transferred to Directive 2006/15/EC and for 4 of these substances to Directive 2017/164/EU.

The current Directive establishes values for a reference period of eight hours for the following 6 chemical substances:

Picric acid
Cresols (all isomers)
Platinum (metallic)
Tin (inorganic compounds as Sn)


Read the full text of the original Directive

National laws implementing this Directive

There are lists on indicative occupational exposure limit values:

Further information on this topic