State system for ensuring the uniformity of measurements. State special standard and state hierarchy diagram for variable pressure measuring instruments in the range of 1x10 in 2 degree to 1x10 in 6 degree Pa for frequencies of 5x10 in minus 2 degree to 1x10 in 4 degree Hz, durations from 1x10 in minus 5 degree to 10 s under constant pressure up to 5x10 in 6 degree Pa
Workplace atmospheres. Determination of total isocyanate groups in air by the method of liquid chromatography using reagent 1-(9- anthracenylmethyl) piperazine (MAP)
Thermoplastics pipes, fittings and assemblies for the conveyance of fluids. Determination of the resistance to internal pressure. Part 2. Preparation of pipe test pieces
