Rechercher

This International Standard specifies experimental methods for the evaluation of quality variation of iron ores for each type of iron ore being traded and for each handling plant. Two distinct approaches are specified. The first is to analyse interleaved samples composed of a number of paired increments taken and combined alternately following stratified sampling or systematic sampling as…

This QOS Framework is a structured collection of concepts and their relationships which describes QOS (Quality of Service) and enables the partitioning of, and relationships between, the topics relevant to QOS in Information Technology (IT) to be expressed by a common means of description. In particular, this QOS Framework is directed at IT systems and their use in providing Open Distributed…

This QOS Framework is a structured collection of concepts and their relationships which describes QOS (Quality of Service) and enables the partitioning of, and relationships between, the topics relevant to QOS in Information Technology (IT) to be expressed by a common means of description. In particular, this QOS Framework is directed at IT systems and their use in providing Open Distributed…

Specifies a method for calculating the minimum approach distance for live working, at voltages between 1 kV and 800 kV, required to protect workers from system overvoltages. This standard addresses system overvoltages, and the working air distances between parts and/or workers at different potentials. The calculation of distances for d.c. voltages is presently under consideration.

The Station Management (SMT) Abstract Test Suite (ATS) directly supports the FDDI Protocol Implementation Conformance Statement (PICS) Proforma and works in correlation with three other FDDI ATS standards. This ATS for FDDI SMT provides the test procedures and test cases required to test the station management protocol described in the SMT standards. SMT specified the local portion of the system…

1. Scope 1.1 This Standard describes the design, construction, load rating, installation, erection, inspection, maintenance, repair, modification, test, and operation of lattice and telescopic boom mobile cranes. 1.2 This Standard applies only to machines that have all of the following fundamental characteristics: (a) the crane comprises, or is mounted on, a non- or self-propelled,…

This part of ISO/IEC 9314 specifies the Physical Layer Protocol (PHY), the upper sublayer of the Physical Layer, for Fibre Distributed Data Interface (FDDI). FDDI provides a high-bandwidth (100 Mbit/s), general-purpose interconnection among information processing systems, subsystems and peripheral equipment, using fibre optics or other transmission media. FDDI can be configured to support a…

This part of ISO/IEC 9314 specifies the Media Access Control (MAC), the middle sublayer of the Data Link Layer (DLL), for Fibre Distributed Data Interface (FDDI).FDDI (ISO/IEC 9314) provides a high-bandwidth (100 Mbit/s), general-purpose interconnection among information processing systems, subsystems and peripheral equipment, using fibre optics or other transmission media. FDDI can be configured…

Is applicable to two-pole voltage detectors to be used on electrical systems for nominal voltages not exceeding 1 000 V a.c. and/or 1500 V d.c and below 500 Hz (nominal frequencies). The detector types are classified as follows: voltage class A: up to and including 500 V a.c./750 V d.c.; voltage class B: up to and including 1 000 V a.c./ 1 500 V d.c. Low-voltage detectors covered by this…

1. Scope 1.1 This Standard applies to commercial refrigerator, refrigerator-freezer, and freezer cabinets that are intended for storing or holding food products and other perishable merchandise. 1.2 This Standard applies to (a) manufacturers' standard catalogue-type equipment; (b) closed cabinets of the unitary, self-contained type; (c) commercial refrigerated storage cabinets,…