Very nice app for your iPhone that has the NIOSH Lifting Equation built in. Clear, easy to use (assuming you are familiar with the NIOSH Lifting Equation).
Link if looking on a computer: https://itunes.apple.com/us/app/liftright/id566648977?mt=8
Link if looking on your i-Device: https://appsto.re/us/rcMXH.i
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