Direct acting indicating analogue electrical measuring instruments and their accessories; part 1: definitions and general requirements common to all parts (IEC 60051-1:1984, edition 4); german version EN 60051-1:1989— 26 стр.
Testing of mineral oil hydrocarbons, similar liquids and solvents for paints and varnishes; analysis by gas chromatography; general working principles— 7 стр.
German standard methods for the examination of water, waste water and sludge; general information (group A); recording of analysis results (A 1)— 26 стр.
Standardization - Part 2: Presentation of documents (ISO/IEC Directives - Part 2:2011, modified); Trilingual version CEN-CENELEC Internal Regulations - Part 3:2011— 240 стр.
