Introduction Health and Safety Executive（介绍,健康和安全执行）.pdf

Health and Safety Executive Working safely with acetylene Introduction This leaflet provides guidance on the fire and explosion hazards of acetylene. It is for people who use acetylene for welding, cutting and similar processes. The leaflet does not cover fixed installations where acetylene is used (see www.hse. gov.uk/fireandexplosion/acetylene.htm for more information on these). Figure 1 Typical equipment used in oxy/acetylene gas welding and similar processes (Note that cylinder valves will be operated either by a ‘cylinder key’ or a ‘handwheel’). This is a web-friendly version of leaflet INDG327(rev1), published 07/14 Working safely with acetylene Page 1 of 5 Health and Safety Executive What does the law say? There are specific legal duties relating to acetylene under the Health and Safety at Work etc Act 1974 and the Provision and Use of Work Equipment Regulations 1998 (see .uk/fireandexplosion/acetylene.htm). This leaflet will help people who use acetylene to comply with their legal duties. Explosion hazard of acetylene cylinders An acetylene cylinder has a different design from most other gas cylinders. It consists of a steel shell containing a porous mass. The acetylene gas in the cylinder is dissolved in acetone which is absorbed by the porous mass. Deco