规定动火作业（包括焊接和相关工艺）之前和期间应采取的预防措施，以防止可能导致人员或财产伤害的火灾或爆炸。尤其是，此类预防措施适用于制造、施工、维护、修理、拆除期间的动火作业，以及装置或设备含有易燃、可燃或爆炸材料的情况。本标准不包括保护操作员免受电击、窒息、中毒和其他危害的措施，也不涉及防护服。尽管本标准主要适用于危险的焊接作业，但也适用于其他类型的焊接作业。

Specifies precautions to be taken prior to and during hot work (including welding and allied processes), to prevent the possibility of fire or explosion, which may result in harm to persons or property. In particular, such precautions apply to hot work during manufacturing, construction, maintenance, repairs, demolition and where plant or equipment has contained flammable, combustible or explosive material. Measures for the protection of operators against electric shock, asphyxiation, poisoning and other hazards are not covered by this Standard, which also does not deal with protective clothing. Although primarily oriented to hot work that is related to welding and allied processes, This Standard can generally be applied to other forms of ignition sources in hazardous areas.