[Development of measures for preventing contamination of the atmosphere in hermetically sealed enclosures].

The kinetics of the outgassing of volatile substances from polymers of different function and composition was studied with respect to their natural ageing. The outgassing rate was exponentially related to the time of the sample storage. Six to nine months after the polymer fabrication the outgassing rate decreased to a minimum. Possible nobilization of synthetic materials with the aid of diffusion stabilization and thermostatization was investigated. Practical recommendations on how to prevent contamination of the enclosed atmosphere with outgassed products of synthetic materials were developed.