Is there one?

If I'm going to test, say, the breaking strain of a piece of steel cable and want to do it officially and say I'd done it officially I'd imagine my measuring equipment would have to be calibrated to an agreed standard.

There'd be a certificate and someone to issue that certificate on behalf of whoever officially looks after the calibration of...um...measuring devices for steel cable breaking strain (hey you can tell I know what I'm talking about can't you! )

Is there someone I could take a chrono to and get said chrono checked and have a certificate issued.

Police? Local authority/trading standards?

Any ideas?

UKAHFT chaps, for example, how do you guys ensure your PM110 is reading right?