RT Journal Article SR Electronic T1 Determination of safe load. JF British Journal of Industrial Medicine JO Br J Ind Med FD BMJ Publishing Group Ltd SP 120 OP 133 DO 10.1136/oem.43.2.120 VO 43 IS 2 A1 Gracovetsky, S YR 1986 UL http://oem.bmj.com/content/43/2/120.abstract AB The biomechanical criteria adopted by the National Institute for Occupational Safety and Health are shown to be based on considerations that are not consistent with current experimental data and theoretical principles. It is therefore suggested that these standards ought to be replaced, and a rationale for doing so is proposed.