2　Normative References

The following references are essential to this Specification.While for those with date noted，only their revision noted with date shall be applicable to this Specification，and for those without date noted，their latest revision（including their all subsequent amendments）shall be applicable to this Specification.

GB 50116　Code for design of automatic fire alarm systems

GB 50160　Fire prevention code of petrochemical enterprise design

GB 50493　Specification for design of combustible gas and toxic gas detection and alarm for petrochemical industry

SH/T 3160　Specification for design of blast resistant control building in petrochemical industry