translate English to French: However, the maximum permissible weight lifted/lowered established by the U.S. National Institute of Occupational Safety and Health (NIOSH) under optimal conditions is 23 kg/51 lbs.
Toutefois, le U.S. National Institute of Oc cupational Safety and Health (NIOSH) a établi que le poids maximal qu’il est permis de soulever ou d’abaisser dans des conditions optimales est de 23 kg (51 lb).