Polyamides, polyamide fibres, fabrics, films. Determination of mass fraction of residual caprolactam and low-molecular compounds and their concentration of migration in water. Methods of liquid and gas-liquid chromatography
State system for ensuring the uniformity of measurements. State verification schedule for variable pressure measuring instruments in the range from 1·10 2 to 2,5·10 7 Pa for frequencies from 5·10 -1 to 1·10 4 Hz and durations from 1·10 -5 to 10 s under constant pressure up 5·10 6 Pa
