We have a dozen or so portable bench scales that we deploy out on boats for shellfish harvest and bagging.
We have accredited weights on hand. Our procedure right now is to check the accuracy of the scale against the accredited weight.
We also have a bunch of accredited weights with expired certificates.
Does anyone have a SOP for using a single accredited weight to verify the "check weights" used to verify the accuracy of the bench scales?
The scales and weights are used in a saltwater wet operation, so keeping the precious accredited weight dry and free from corrosion is difficult.
I would like to keep one accredited weight on hand in a controlled environment and verify check weights against the accredited weight, then use the verified check weights to check the accuracy of the bench scales.