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IEC 61158-4-21:2010 describes procedures for the timely transfer of data and control information from one data link user entity to a peer user entity, and among the data link entities forming the distributed data link service provider and procedures for giving communication opportunities based on standard ISO/IEC 8802-3 MAC, with provisions for nodes to be added or removed during normal operation…

IEC 61158-4-22:2010 describes procedures for the timely transfer of data and control information from one data-link user entity to a peer user entity, and among the data-link entities forming the distributed data-link service provider; the structure of the fieldbus DLPDUs used for the transfer of data and control information by the protocol of this standard, and their representation as physical…

IEC 61158-4-12:2010 specifies procedures for the transfer of data and control information from one data-link user entity to one or more user entity; the structure of the DLPDUs used for the transfer of data and control information by the protocol of this standard, and their representation as physical interface data units. This second edition cancels and replaces the first edition published in…

IEC 61158-4-11:2010(E) specifies procedures for the timely transfer of data and control information from one data-link user entity to a peer user entity, and among the data-link entities forming the distributed data-link service provider; procedures for giving communications opportunities to all participating DL entities, sequentially and in a cyclic manner for deterministic and synchronized…

IEC 61158-3-19:2010(E) specifies procedures for the timely transfer of data and control information from one data-link user entity to a peer user entity, and among the data-link entities forming the distributed data-link service provider and the structure of the fieldbus DLPDUs used for the transfer of data and control information by the protocol of this standard, and their representation as…

ISO 9554:2010 specifies the general characteristics of fibre ropes and their constituent materials. It is intended to be used in conjunction with the standards for the individual types of fibre rope, which cover the physical properties and specific requirements for that particular product type. ISO 9554:2010 also gives some information on the use of fibre ropes and also on their inspection and…

Preface This is the fifth edition of CSA B602, Mechanical couplings for drain, waste, and vent pipe and sewer pipe. It supersedes the previous editions published in 2005, 1999, 1990, and 1988 (Preliminary Standard). This Standard is considered suitable for use for conformity assessment within the stated scope of the Standard. Scope 1.1 This Standard covers mechanical couplings that are used to…

Preface This is the third edition of CSA B356, Water pressure reducing valves for domestic water supply systems. It supersedes the previous editions, published in 2000 and 1979 under the title Backflow Preventers and Water Pressure Reducing Valves. Scope 1.1 This Standard applies to self-acting spring-operated devices that automatically reduce the initial pressure in water systems to a…

Preface This is the fourth edition of CSA C22.2 No. 71.2, Electric bench tools. It supersedes the previous editions published in 2008, 1989, and 1985. Scope 1.1 This Standard applies to single-phase electric tools of the bench type that are intended for use in nonhazardous locations in accordance with the Canadian Electrical Code, Part I, that are connected to a nominal system voltage…

ISO 7779:2010 specifies procedures for measuring and reporting the noise emission of information technology and telecommunications equipment. The basic emission quantity is the A-weighted sound power level which may be used for comparing equipment of the same type but from different manufacturers, or for comparing different equipment. Three basic noise emission standards for determination of the…