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Home Forums General Ergonomics Topics Limits on maximum daily load 10 000 Kg??

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    Hi all,

    In the standard ISO 11228-1 the limit to maximum daily load is set at 10 000 Kg. Did any one know if there is any scientific evidence supporting this value?. According to a document from th HSE in the UK(http://www.hse.gov.uk/research/rrpdf/rr838.pdf) no justification appears to exist for the daily mass limits in ISO 11228-1 (page 6). I would like to know more about this limit and if there are other limits proposed in literature (15 000 kg, for exemple).





    It appears that the ISO 11228-1 standard was based on the EN 1005 part 2 standard, though the EN 1005 does not any table for “Recommended limits for cumulative mass related to carrying distance”.

    Also, there is (or was) lack of consensus among the ISO Working Group on this point, and it was pointed out (mainly by the US member) that the ISO value of 10,000 kg/8-hrs was “380 to 600 times greater” than the Snook & Ciriello (1991) values (which varied according to distance while the ISO limit did not). Possibly the ISO limits were predicated on the findings of only five very young male individuals, while Snook & Ciriello used both male and female industrial workers in much larger numbers. However, the committee felt that a comparison between the Snook and Ciriello values and the ISO proposal showed that values were “quite close to each other”.

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