Standards
This standard gives recommendations on the serviceability of buildings against vibrations. It covers three recipients of vibrations: a) human occupancy in buildings and on pedestrian bridges; b) the contents of the building; c) the structure of the building. It applies to buildings, pedestrian bridges and walkways found within buildings or connecting them and does not include bridges that carry vehicular traffic, nor the design of foundations or supporting structures of machinery.
This standard specifies
attachment fused and unfused plugs (caps), shuttered receptacles (sockets) for
flush surface mounting. These plugs and sockets are suitable for alternating
current circuits only of voltages not exceeding 250 volts and currents not
exceeding 15 amperes. The plugs and
receptacles covered by this standard are intended for use in making readily detachable
electrical connections in non-hazardous locations between supply circuits and
portable lamps, appliances and similar equipment.
This standards covers thermoplastic and rubber tapes for use as electrical insulation at not more than 600 V and at 80C (176 F) and lower temperatures on joints and splices in wires and cables in accordance with the National Electrical Code. It is intended that rubber tape on a joint or splice be mechanically protected by a covering such as friction tape . Thermoplastic tape is acceptable without the additional mechanical protection.
This standard specifies performance requirements for hollow load-bearing concrete masonry units made from Portland cement, water and mineral aggregates with or without the inclusion of other materials. It covers three weight classifications of the concrete masonry units: (a) normal weight; (b) medium weight; and (c) lightweight.
This standard specifies requirements for hollow non-load-bearing concrete masonry units made from portland cement, water and mineral aggregates with or without the inclusion of other materials. It covers three weight classifications of the concrete masonry units: (a) Normal weight; (b) Medium weight; and (c) Light weight. It also covers the sampling and testing of hollow non-load-bearing concrete masonry units for compressive strength, absorption, weight, moisture content and dimensions. It does not cover blocks intended solely for decorative purposes.
This British Standard specifies requirements for the construction dimensions and mechanical and electrical properties of non- armoured polyvinyl chloride (PVC) insulated cables for operation at voltages up to and including 450 V a.c. to earth and 750 V a.c between conductors, intended for electric power lighting and internal wiring.