Method for determining the chemical safety of a potentially hazardous product

Claims

1. A method for determining the emission of formaldehyde and other harmful volatile chemical substances in climatic chambers, characterized in that the determination of the chemical safety of a product during its normal operation includes measuring, at normal and maximum temperatures in a climatic chamber, the volume fraction of oxygen and carbon dioxide, the concentrations of carbon monoxide, volatile organic compounds and other harmful substances contained (formed) in the product during its normal operation, with subsequent comparison of the obtained results with the oxygen content standards and maximum permissible concentrations of harmful substances established by regulatory documents.

2. The method according to paragraph 1, characterized in that the determination of the chemical safety of the product upon its transition to an emergency state includes accelerated tests for failure-free operation, as a special case of failure-free tests, in a climatic chamber, measuring the concentrations of harmful substances contained (formed) in the product upon its transition to an emergency state, with subsequent calculation of complex indicators - chemical risks, determined as functions of the probability of failure-free operation of the product and the chemical composition of the multicomponent air environment formed upon the transition of the product to an emergency state in the climatic chamber, and a comparison of the obtained results with the standards established in the technical documentation.

3. The method according to paragraph 2, characterized in that the determination of the chemical safety of the product when it enters an emergency state also includes the measurement of the volume fraction of oxygen in the climatic chamber, and the calculation of complex indicators - chemical risks - is carried out taking into account the oxygen deficiency, if a significant level of oxygen deficiency is detected during measurements.

4. The method according to paragraph 3, characterized in that the determination of the chemical safety of the product when it enters an emergency state also includes the measurement of the volume fraction of nitrogen in the climatic chamber, and the calculation of complex indicators - chemical risks - is carried out taking into account the oxygen deficiency in the presence of nitrogen, if a significant level of oxygen deficiency in the nitrogen-oxygen air environment is detected during measurements.

5. The method according to paragraph 4, characterized in that the determination of the chemical safety of the product when it enters an emergency state also includes the measurement of the volume fraction of argon in the climatic chamber, and the calculation of complex indicators - chemical risks - is carried out taking into account the oxygen deficiency in the presence of nitrogen and / or argon, if a significant level of oxygen deficiency in the argon-oxygen and / or nitrogen-argon-oxygen air environment is detected during measurements.