Here is another torque wrench question. I have just done a cal. check on a 80 ft.lb. non-ratcheting wrench. I am following the guidelines found in ASME B107.14-1994 and testing at 20%,60%, and 100% of span. This particular wrench was out by up to 6 lb.s at the 20% reading, but was well within the acceptable range at 60% and 100%. This wrench is used only in its upper ranges, if I label this wrench clearly as being off at the 20% range can I continue to use it?