Review on 🔍 Precision Calibration Weight: American Weigh Scales Ensures Accurate Measurements by Brian Potter

I bought 3 of these and compared them using an AWS electronic scale with a resolution of 0.01g. All 3 measure the same on my scale so they are weight-weight consistent. I don't have a NIST certified scale so I can't say more. As far as I can tell they appear to be accurate and my Ohaus triple beam matches the electronic scale (but the Ohaus resolution is only 0.1g so this may not be the best comparison). Although a certificate would be an advantage.