Development Coordination Group

The harmonized classification system for acute toxicity has been developed in such a way as to accommodate the needs of existing systems. A basic principle set by the lOMC Coordinating Group/Harmonization of Chemical Classification Systems (CG/HCCS) is that harmonization means establishing a common and coherent basis for chemical hazard classification and communication from which the appropriate elements relevant to means of transport, consumer, worker and environment protection can be selected . To that end, five categories have been included in the acute toxicity scheme. 

The use of extractants of the same general type as tributyl phosphate, i.e., neutral extractants containing the P=0 coordinating group, but designed with specially selected extraction properties should have many advantages in the development of LLE systems which may be applicable to reactor fuel reprocessing. 

D. Watkins K. Dircks and D. Epp Canadian Solid Polymer Fuel Cell Development, presented at the 1988 Fuel Cell Symi-nar, Oct. 23-26, 1988, Long Beach, CA, Sponsored by the National Fuel Cell Coordinating Group. 

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