Mich. Admin. Code R. 408.14933 - Welded end attachment; certificate of proof test
Rule 4933.
(1)
Welding of an end attachment, except covers to thimbles, shall be performed
prior to the assembly of the sling.
(2) All welded end attachments shall not be
used unless proof tested by the manufacturer at twice their rated capacity
prior to initial use. The employer shall retain a certificate of the proof
test, and make it available for examination.
Notes
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