This standard specifies the basic safety requirements for the design, manufacture and installation of fixed steel ladders. This standard applies to fixed steel vertical ladders used in workplaces in industrial enterprises (unless otherwise specified in standards).
GB 4053.1-2009 Referenced Document
GB 4053.3-2009 Safety requirements for fixed steel ladders and platform.Part 3:Industrial guardrails and steel platform
GB 50205-2001 Code for acceptance of construction quality of steel structures
GB 4053.1-2009 history
2009GB 4053.1-2009 Safety requirements for fixed steel ladders and platform.Part 1:Steel vertical ladders
1993GB 4053.1-1993 Safety requirements for fixed steel vertical ladders