IFI 100/107 standard

Does anyone here have handy the prevailing torque requirements called out in the IFI 100/107 (Industrial Fasteners Institute) fastener standard? If you know of a link where I can read the standard in its entirety that would be great, but I'll take what information I can.

I've got a situation where one distributor is supplying a 1/2-13 locknut (nylon insert) from two different vendors that claim to meet the spec above, but the one seems to not work as well as the other. I need to start with understanding what it is they are supposed to be providing and go from there.

Thanks!