HomeLaddersBOS 439-4:2011BOS 439-4:2011P330.60 Wooden ladders Part 4: Step-ladders, platform ladders and shelf ladde BOS 439-4:2011 quantity Buy now SKU: BOS 439-4:2011 Category: Ladders Product ID: 29176 Standard Details Scope Reviews (0) Additional information ICS Code 97.145 ICS Name Ladders Edition 1.0 Legal Status Voluntary Pages 15 Published Date 16-06-2011 Replaced by NULL Replaces NULL Sector Ladders Standard Development Stage Published Standard Status Published Technical Committee Timber Type of Standards Product Description This part of BOS 439 covers specific requirements for step-ladders, platform ladders and shelf ladders. NOTE Information regarding the verification of the quality of single and extension ladders is given in BOS 439 -1. Related products BOS 439-3:2011 P285.00 Buy now BOS 439-1:2011 P467.40 Buy now BOS 439 -2:2011 P307.80 Buy now