Ah! The world of accuracy and calibration.
How far do you go? How accurate do you NEED to be?
Memories from my QC days!
I remember weighing equipment used and having to satisfy HMRC re tobacco duty payments.
Accuracy to 2 dec. places and a certified calibration regime with full documentation and procedure.
Mind you some of the HMRC desk jockeys were hard work. Trying to explain the niceties of sampling plans, accuracy, calibration routines was exasperating.
Anyway, this weekend is our Taffmog Christmas weekend at Ardencote Manor Hotel near Warwick (why stay local when you can travel and enjoy different areas ....Dawlish setup for 2020) so I will check my torque wrench when back.