How does OSHA recommend testing a positioning device system to ensure it is strong enough?
OSHA provides a non-mandatory test method in Appendix D to Subpart M to help employers verify that positioning device systems meet strength requirements found in 1926.502(e). The test consists of dropping a 250-pound rigid weight a distance of four feet.
A system passes if it successfully stops the weight without any breakage or slippage that allows the weight to fall free. A new system must be used for each individual test, and the anchorage point must be rigid enough not to deflect more than .04 inches under a 2,250-pound force.