What is referance guideline for glass ware calibration?
Class A volumetric glassware which comes with its own ASTM certification should
be all you have ever used.
But still is it require verification for the A class glassware??
Class A glassware has a certificate of calibration hance it is not required.
No need to again for a grdae and b grade calibration to be performed as per perri
What is b grade calibration?
With out cerified glasswere known as B grade
I would like to point out that the standards and control results (SOP) verify you have used suitable glassware.
Performance Verification is required,