A New Gritting Standard
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NEW Standard—B.S. 1622 : 1960E1. has been introduced by the British Standards Institution. 2 Park Street, London, W.1, dealing with the winter gritting of roads. It is intended to help local authorities by disseminating knowledge of the latest techniques and providing a yardstick by which to judge gritting machines. .
To help local authorities choose the most appropriate gritter for their own purposes, machines are classified in five categories. Essential requirements for construction and performance are laid down, with tests, to ensure that gritters spread the correct amount of material, distribute it evenly, and aim it correctly.
Neat salt, rarely used 10 years ago when this standard was first published, is now recognized as a valuable gritting material, and the economic use of salt calls for gritters which can spread as little as 1 OZ. per sq..yd. uniformly over wide carriageways: the revised British Standard takes into.., account the need for this u n if ormity.
To allow manufacturers time to redesign their equipment, interim standards are laid down in the revised publication, with the proviso that, after three years. they. will become more stringent_ Copies of this Standard may be obtained from the British Standards Institution, price 6s.