Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories - Part 1: Steel flanges, PN designated; German version EN 1092-1:2001— 71 стр.
Safety devices for gas supply installations operating at working pressures up to 100 bar; pressure relief governors and safety shut-off devices— 15 стр.
Flow measurement; differential pressure devices with corner taps; meter runs nominal diameter 10 to 200 and carrier rings nominal diameter from 50 to 2000— 9 стр.