System of national standards of social accountability of telecommunication companies. Terms and definitions

Die Norm herausgegeben am 1.1.2015

System of national standards for quality of telecommunication services. Methods of testing with the help of test calls

Die Norm herausgegeben am 1.1.2015

System of national standards for quality of telecommunication services. The methodology of inquiries among users

Die Norm herausgegeben am 1.1.2015

System of national standards for quality of telecommunication services. Quality of telecommunication services. Guideline values of quality indices of telecommunication services at the stage of customer interaction

Die Norm herausgegeben am 1.1.2015

System of national standards for quality of telecommunication services. Quality of services of local, long-distance and international telephone communication. Normative values for quality indices of telephone calls

Die Norm herausgegeben am 1.1.2015

System of national standards for quality of telecommunication services. Quality of service of cellular mobile communication. Normative values for quality indices

Die Norm herausgegeben am 1.1.2015

Quality of service «local telephone service using payphones». Quality indices

Die Norm herausgegeben am 1.1.2015

Quality of service «local telephone service using payphones». Quality indices

Die Norm herausgegeben am 1.1.2015

Boring tools with mechanically clamped indexable insert. Symbols

Die Norm herausgegeben am 1.1.2017

Aviation engines and engine components. Industrial cleanliness of critical parts and assemblies of engine hydraulic, lubrication and fuel supply systems. Terms and definitions

Die Norm herausgegeben am 1.3.2015