| 摘要 |
FIELD: chemistry. ^ SUBSTANCE: invention relates to investigation of protective properties of packets of filter materials for skincare agents based on activated carbon-containing sorbents in dynamic conditions. The method is realised by using methyl salicylate which mimics the penetrating power of ypertite in an air stream at temperature 261C, concentration of methyl salicylate vapour in air stream of 0.050.01 mg/l, relative humidity of 655% and pressure gradient on the thickness of the packet with surface area 22 cm2 equal to 49 Pa, with subsequent analytical determination of the minimum amount of methyl salicylate penetrating the packet and the minimum time for protective action, calculation of the external effective dose of DDS, which the packet of the filter protective material protects from based on the given relationship. ^ EFFECT: high safety, reliability and information content of the evaluation process. ^ 2 cl, 1 tbl, 2 dwg |
