[Toxic substances from the use of coolant lubricants]. / Toksichni veshtestva pri izpolzvane na smazochno-okhlazhdashti sredstva.

The results from gas-mass analysis of the mixture of products from evaporation and volatile products from thermo-oxidizing destruction, eliminated at using lubricating-condensing devices point out, that the evaluation of the toxico-chemical factor concerning only the lubricated aerosol contact is extremely insufficient. The presence of hydrocarbons of different homologs, oxygen and nitrogen derivatives of hydrocarbons has to be taken into consideration. For correct characterization of the conditions of work and risk for the workers of these productions, creating conditions for destructive processes with lubricating oils, is necessary a standardization of the leading components of the vapour-gas phase in the air of the working environment.

[Harmful substances released during the thermal oxidative destruction of coolant lubricants]. / Vredni veshtestva, otdeliashti se pri termooksilitelna destruktsiia na smazochno-okhlazhdashti sredstva.

The use of lubricated oils in industry is related to processes of dispersing, evaporation and thermo-oxidizing destruction. As a result, in the air is eliminated a complex vaporous-gas aerosol mixture, consisting of lubricated aerosols, vapours and volatile products of evaporation and products of thermo-oxidizing destruction. In the vapour-gas phase are identified hydrocarbons [saturated, unsaturated, aromatic and cyclic] oxygen- containing hydrocarbon derivatives-aldehydes, ketones, esters, alcohols] in some cases CO. HCL. The composition of the mixture depends on the type of the lubricated oils and on the specific technological operation. The detailed study of the components of the mixture is a prerequisite for determining the leading toxic substances and for correct evaluation of the exposure and professional risk in industries, allowing a course of destructive processes with the lubricated oils.