Calibrating Torque Wrenches and Tensiometers

Hello yemenia

It is bad manners to use all CAPITALS in a Forum.

It is the same as shouting at the reader.

The word "please" would also be helpful, if you want assistance from others.

Kind Regards....

Hello Yemenia, try this site http://www.ncsli.org/resources/procedures/faq.cfm .Ordinarily calibration procedures are purchased however the National Council of Standards Laboratories publishes some free issue procedures available for downloading.

Google calibration procedures for more sites.

Thank you very much for your quick answer my inquiries.

Granted, I'm a bit late to this party; everybody has likely gone home already. However, future visitors to this thread may find the following to be informative:

Ever wonder why after using your recently "calibrated" torque wrench, you broke a bolt, you extruded a gasket or, your joint leaks?

Here's a radical statement sure to raise some hackles: Calibration of torque tools is useless if the aim in doing so is to ensure proper bolt load (is there any other goal?).

Regardless of how close actual torque is to indicated torque, a calibrated wrench applying the same torque to two identical bolts may produce two completely different bolt loads. In fact, in the extreme, one of these bolts could be too loose while the other may have been overtightened! in either case, one may be faced with joint failure.

Here's a link which expands on this: http://www.heviitech.com/Hevii_TorqueDanger.html