1222 1/2 oz. ASTM Class 6 (Replaces NIST Class F) Test Weight

Good calibration weight. Use it to verify our scales

I can only assume it's 10 lbs. I use this to zero my pet scale.

Spot on weight and perfect condition.

The product description says that it is sent with a statement of accuracy and it did not have one included. Please send and I will update the review and stars.

The quality was not as good as the Rice Lake weights that I own, but it is still pretty good. The accuracy seems very good. I'd give it a letter grade of about a "B". Rice Lake gets an "A+"

There was no certificate and i ordered 2 items of exactly same thing, each one was billed separately then shipped separately???

I can’t believe we need this, but O had to buy one. I purchased a calibrated mass and now this as a secondary standard. Same thing as the calibrated version but without the certificate. Mass was. Dead-on. This brick will hang out in our cabinet until I need it each month.