The weight tolerance is equal to ANSI/ASTM E617 Class 000 and OIML R 111 Class E0.
This class is used as a reference standard for calibrating other reference standards and weights where the stability of the environment and careful handling are assured.
This class is appropriate for calibrating high-precision analytical balances with a readability as low as 0.0001 mg.
Troemner UltraClass Platinum is equivalent to ANSI/ASTM Class 000.
Individual weights are supplied in polycarbonate case. Weight sets are supplied in a polycarbonate case with aluminum insert with individual compartments for each weight.
Polycarbonate case sits inside an attractive aluminum master carrying case. Accessories for proper care and handling of weights are supplied. Certificate is provided on a USB Flash Drive.