This standard specifies the product classification, requirements, test methods, inspection rules and markings, packaging, transportation and storage of explosion-proof lid wrenches. This standard applies to explosion-proof lid wrenches (hereinafter referred to as "bucket lid wrenches") used in explosive and flammable situations.
QB/T 2613.4-2003 history
2003QB/T 2613.4-2003 Tools for explosive atmospheres - Drum plug openers for explosive atmospheres