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.
Direct acting indicating analogue electrical-measuring instruments and their accessories - Part 1: Definitions and general requirements common to all parts (IEC 60051-1:1997); German version EN 60051-1:1998— 25 стр.
Direct acting indicating analogue electrical-measuring instruments and their accessories - Part 9: Recommended test methods (IEC 60051-9:1988/A1:1994); German version EN 60051-9:1989/A1:1995— 3 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.
Direct acting indicating analogue electrical-measuring instruments and their accessories - Part 9: Recommended test methods (IEC 60051-9:1988/A2:1995); German version EN 60051-9:1989/A2:1995— 3 стр.
German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Installation of gas, water and drainage pipework inside buildings— 20 стр.
German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Installation of air conditioning systems— 33 стр.
German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Installation of central heating systems and hot water supply systems— 27 стр.
German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Installation of central heating systems and hot water supply systems— 28 стр.
German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Installation of air conditioning systems— 32 стр.
German construction contract procedures - Part C: General technical specifications for building works - Gas, water and sewage plumbing works inside of buildings— 20 стр.
German construction contract procedures - Part C: General technical specifications for building works - Systems for heating and central water heating— 28 стр.
German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Installation of gas, water and drainage pipework inside buildings— 23 стр.
