[Determining the level of yttrium oxide-coated silicon nitride in the air of the work area]. / OPredelenie nitrida kremniia, pokrytogo pksidom ittriia, v vozdukhe rabochei zony.

To measure the concentrations of yttrium-oxide-coated small-dispersed silicon nitride plasma powder, the air was aspirated at the amount of 10-15 litres per min through the AFA-XP filter. The filter was limed in a platinum crucible, the residuum being alloyed with Na2CO3, Na2B4O7, NaNO3 in ratio 10:5:1. The alloy was transferred into solution in which the silicon content was assessed through reactions with ammonium molybdate, and yttrium--through reactions with arsenaso III. The sensibility rate for silicon was at 0.07 mg/m3.

[Problems in the further development of postgraduate training in industrial sanitary chemistry for the laboratory physicians of epidemiological health stations]. / Voprosy dal'neishego razvitiia poslediplomnoi podgotovki po promyshlenno-sanitarnoi khimii vrachei-laborantov sanépidstantsii.

The article narrates on the domain of the sanitary inspection medical laboratory workers' supervision in the field of industrial chemistry and their experience in handling different physical and chemical analysis techniques. It is indicated that sanitary inspection medical laboratory personnel requires constant postgraduate training. Proposed is the respective training programme adopted at the Institute for Postgraduate Training of Physicians, Moscow, which includes samples' selection, physical and chemical analysis testing and application in specific conditions, statistical assessment of the results obtained. The programme also includes the hygienic aspects, e. i. current sanitary control, labour hygiene in different gas discharge-related conditions. Practical training is performed in small groups of 2 or 3 persons, thus facilitating adoption of skills in using various analysis techniques. Initial, current and intermediate control, tests and situational analysis are used in the training process.