Ohaus OIML E1 troemner alloy stainless steel test weights are adjusted to meet or exceed OIML E1 tolerances.
OIML Class E1 test weights offer high accuracy with tight tolerances and guaranteed uncertainty 1/3 of the tolerance. Weight surfaces meet or exceed OIML R 111 and have a highly polished mirror-like finish.
Weights are supplied in high quality cases to ensure weights are held securely, kept clean, and dust free. NVLAP Calibration Certificate is accredited to ISO 17025 which is recognizable through ILAC.