METHOD FOR CONTROL OF QUALITY OF POLYMER MATERIAL Russian patent published in 2023 - IPC G01N33/44 

FIELD: gas analysis equipment.

SUBSTANCE: system and method for quality control of a polymer material, and can be used to determine compliance of a polymer material intended for the needs of the food and pharmaceutical industries with the requirements of the current regulatory documents for intensity of the odour of the polymer material. The polymer material quality control system includes a block including gas analytical device (1) based on a chemoresistive type multi-sensor line, connected to a block for recording and processing signal (7) received from the said gas analytical device (1), gas-tight chamber (2) intended for the sample of the said polymer material, tank (3) intended for compressed dry air, and at least two air supply lines from the said tank (3) at a constant speed, switch (8) for the flows entering the said gas analytical device (1) through the said at least two air supply lines; wherein first air supply line (6) passes from the said tank (3) to gas analysis device (1) through chamber (2), and second air supply line (4) passes from the said tank (3) to gas analysis device (1) bypassing chamber (2).

EFFECT: ability to determine compliance of the odour of polymer materials, such as primary and secondary polymers, compounds, as well as polymers with odour-masking additives, with the requirements of the current regulatory documents.

10 cl, 4 dwg