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BS 92 Screw threads, British Standard Whitworth and their tolerances; BS 93 Specification for British Association (B.A.) screw threads with tolerances for sizes 0 B.A. to 16 B.A. BS 94 Watertight glands for electric cables; BS 95 Tables of Corrections to Effective Diameter required to compensate Pitch and Angle Errors in Screw Threads of ...
Length & Width-- The length or width of a board produced as a standard size shall not be less than the specified size nor more than 6.3 mm (0.25") greater than the specified size. Squareness-- The lengths of the diagonals of a board shall not differ by more than 0.25% of the length of the diagonal. Thickness Tolerances-- Tolerances vary as follows.
BS 8888 is the British standard developed by the BSI Group for technical product documentation, geometric product specification, geometric tolerance specification and engineering drawings. [ 1 ] History
The American Petroleum Institute (API) oldest and most successful programs is in the development of API standards which started with its first standard in 1924. API maintains over 500 standards covering the oil and gas field. [2] The following is a partial list specific to welding:
The detailed requirements of the Building Regulations in England and Wales are scheduled within 18 separate headings, each designated by a letter (Part A to Part S), and covering aspects such as workmanship, adequate materials, structure, waterproofing and weatherisation, fire safety and means of escape, sound isolation, ventilation, safe (potable) water, protection from falling, drainage ...
First fix comprises all the work needed to take a building from foundation to putting plaster on the internal walls. This includes constructing walls, floors and ceilings, and inserting cables for electrical supply and pipes for water supply. Some argue that First Fix starts after the shell of the building is complete, and ends when the walls ...
H7/h6 is a very common standard tolerance which gives a tight fit. The tolerances work in such a way that for a hole H7 means that the hole should be made slightly larger than the base dimension (in this case for an ISO fit 10+0.015−0, meaning that it may be up to 0.015 mm larger than the base dimension, and 0 mm smaller).
British Standards (BS) are the standards produced by the BSI Group which is incorporated under a royal charter and which is formally designated as the national standards body (NSB) for the UK. [1] The BSI Group produces British Standards under the authority of the charter, which lays down as one of the BSI's objectives to: [ 2 ]