DIN ISO/TS 81346-3:2013-09

This prestandard establishes comprehensive and practice-oriented principles and rules for the designation of technical objects within a system, as well as for the designation of connections, signals and documents in accordance with the corresponding basic standards. The principles of this prestandard apply to all technical fields for all industries and can be applied in all phases of the life cycle of a technical object. The designation of types, individuals, cost-centres, projects, etcetera is not covered by this prestandard. DIN EN IEC 81346-1 provides a number of possibilities for the construction of reference designations. For most applications, however, only a subset of the possibilities needs to be used. DIN EN IEC 81346-1 does not restrict the use of the reference designation system to a specific area. It is sometimes necessary to incorporate further basic requirements, and it is recommended that these be specified and explained in supporting documentation. To enhance an efficient implementation of those basic rules and to ensure a consistent interpretation of those rules, an easily understandable system is necessary. This prestandard: - offers broadly based, general solutions with rules for a practice-oriented and consistent application, - fulfils the requirements for ergonomics and occupational safety, - takes into account memorability, labelling, and processing in common office- and CAx-tools, - summarizes in a single document all technical designation tasks (reference designations according to function, product and location aspect as well as designation of connections, signals, documents), - recommends decoupling of reference designation activities of plant designers and of equipment suppliers, by use and allocation of different aspects, - introduces the "conjoint designation" for higher level objects without specific aspect, - supports the handling of computer programs and parts of such programs as technical products, - forms the basis for sector-specific solutions and specifications in further parts, in order to achieve a consistent designation across different technical fields. The following modifications have been made with respect to DIN ISO/TS 16952-1:2007-03: a) editorial revision for integration in the common ISO/IEC 81346 series. This prestandard contains the German translation of the International Technical Specification (ISO/TS) ISO/TS 81346-3, which has been prepared in ISO/TC 10/SC 10/WG 10 "Referenzkennzeichnungssystem" ("Reference designation systems"). On the national level Joint Working Committee NA 152-06-09 GA "Kennzeichnungssysteme (GA KS)" ("Designation systems (GA KS)") is the responsible committee.