Author Topic: Calibration ball expiration?  (Read 2359 times)

Forrest

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Calibration ball expiration?
« on: August 23, 2014, 12:58:04 am »
My Medmont 8mm calibration ball has an expiry date on the back. Sept 2014

Is there any reason for expiry date of the calibration ball please? Will it rust?

Forrest

Michael.Berkovich

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Re: Calibration ball expiration?
« Reply #1 on: August 25, 2014, 02:08:02 pm »
All materials have a tendency to change and thus in the absence of a calibration at periodic intervals, the accuracy of the measurements is in question.

Michael