Standards

This Code of Practice specifies the requirements for concrete and block masonry used in structures or buildings.

This document applies to single storey houses up to 7.62 m x 12.19 m (25 ft x 40 ft) plan, with hollow block masonry or timber framed walls, and timber framed or concrete roofs.  It provides the user with the technical information to supervise the construction of a safe and durable house, and to facilitate checks on whether a safe and durable house is being built.

This document does not include construction details for utilities (including plumbing, electrical, communications, security, and natural gas.  It also does not include construction details for solid brick masonry.

This document specifies the general requirements and tests for safety devices for fuel gases and oxygen or compressed air which do not incorporate a flame (flashback) arrestor used downstream of manifold, cylinder and/or pipeline outlet regulators, and upstream of blowpipes for welding, cutting and allied processes. This document does not specify the location of these devices in the gas system. This document is not applicable to safety devices which incorporate a flame arrestor, covered by ISO 5175-1.

This standard specifies requirements for hollow blocks made from fired clay.  The standard covers the general quality, dimensions and strength of the blocks.

This standard specifies requirements, including dimensions, materials, finish and selection for sampling for wire nails and cut nails. The following types of wire nails are covered by this standard: (a) Round plain head nails; (b) Round lost head nails; (c) Clout or slate nails; (d) Extra large head clout or felt nails; (e) Convex head roofing nails (chisel or diamond points); (f) Pipe nails (chisel point); (g) Panel pins; (h) Hardboard panel pins (round shank); (i) Hardboard panel pins (square shank); (j) Lath nails; (k) Plasterboard nails (jagged shank); (l) Oval brad head nails; (m) Oval lost head nails; (n) Tile pegs; (o) Tram nails with flat or raised head with chisel point; (p) Spring head twisted shank nails; (q) Square twisted shank flat head nails; (r) Washer head slab nails; (s) Dowels; (t) Annular ringed shank flat head nails; (u) Helical threaded shank flat head nails; and (v) Duplex head nails. The following types of cut nails are covered by this standard: (a) Cut clasp nails; and (b) Cut floor brads. The types of nail covered are illustrated in Tables 1 to 25 and in the corresponding diagrams, Figures 1 to 25.

This standard specifies the conditions under which ready-mixed concrete shall be made and delivered, and the methods by which the purchaser can specify with his enquiry or order, the properties of the concrete required.  It provides a specification for the production and supply of ready-mixed concrete. Methods of specifying ready-mixed concrete for nominal mixes, specified strength mixes and mixes for special purposes, to meet the requirements of standard codes of practice, are covered.  It also gives guidance on the data to be provided by the purchaser when ordering ready-mixed concrete, the inspection facilities to be provided by the supplier and the appropriate tests.  Routine tests which must be carried out by the supplier and those which are the responsibilities of the purchaser are also included.  This standard does not cover the placing, compaction, curing or protection of the concrete after delivery, nor does it apply to materials for lean concrete or similar road care materials.

This standard specifies requirements for three types of galvanized steel barbed wire. Two classes of galvanized coating, ordinarily and heavily galvanized, are specified.

This standard gives requirements for the design, location, construction, and maintenance of septic tanks. It includes methods of treatment and disposal of septic tank effluent from domestic sewage. This standard is applicable to individual housing units and institutions where the number of users does not exceed twenty (20) persons. For buildings with more than twenty (20) users an alternative treatment method should be considered with the approval from the relevant authorities.