Direct acting indicating analogue electrical measuring instruments and their accessories; part 9: recommended test methods (IEC 60051-9:1988, edition 4); german version EN 60051-9:1989— 24 стр.
Electrical measuring instruments - X-t recorders - Part 2: Recommended additional test methods (IEC 61143-2:1992); German version EN 61143-2:1994— 6 стр.
Gas- and water-fittings for house installation; coupling nuts of nonferrous metal alloy for boltings up to working pressure of 10 kp/cm<(hoch)2>— 1 стр.
Tendering and performance stipulations in contracts for construction works (VOB); part C: general technical specifications in contracts for construction works (ATV); metalwork— 21 стр.