ILO homeIndustries and sectorsChemical industriesResources on Chemical industries sector Resources on Chemical industries sector R177 Chemicals Recommendation, 1990 25 June 1990 RECOMMENDATION CONCERNING SAFETY IN THE USE OF CHEMICALS AT WORK C170 Chemicals Convention, 1990 25 June 1990 Convention concerning Safety in the use of Chemicals at Work Safety and health in the construction of fixed offshore installations in the petroleum industry 01 January 1981