| 释义 |
Hazchem, n. Brit., Austral., and N.Z.
Brit. |ˈhazkɛm|, U.S. |ˈhæzˌkɛm|
Forms: also with lower-case initial.
[‹ haz- (in hazardous adj.) + chem- (in chemical adj. and n.).]
A system of codes and symbols for labelling hazardous chemicals that are transported or stored in bulk, in order that they may be identified easily and handled safely, esp. in an emergency. Usu. attrib. Occas. in extended use: a hazardous chemical. Cf. hazmat n.
The system, originally voluntary, was developed by the London Fire Brigade and first became compulsory in the UK in 1979. The UK labelling includes the United Nations four-figure substance identification number, and a code by which emergency services can identify appropriate procedures in the event of an accident.
1976Hazard Identification (Chem. Industries Assoc.) (ed. 2) 3 In 1972 the Home Office Standing Advisory Committee set up a Working Party to examine the problem. Proposals already put forward by the London Fire Brigade as the ‘Hazchem scheme’ served as a basis. 1979N. Wallington Fireman! ix. 113 The Hazchem Code obviously saves valuable time. 1987S. Johnson Commissioner ix. 120 What customs officer, confronted with that sinister hazchem warning and the skull and crossbones symbol, was ever going to run tests to see if the substance those drums contained was the substance they were meant to contain. 1992S. Holloway Courage High! xxviii. 222/2 All vehicles carrying hazardous substances throughout the EEC area were required to display the Hazchem device—a regulation which also applied to any premises in which such substances were stored or used. 2001Independent on Sunday 8 Apr. (Rev. Suppl.) 42/2 The London Waste Company that sits across the North Circular Road spewing out God-knows-what is something else altogether... By the time we've traversed the North Circular, our tongues are toxic with the hazchem backdraft. |