Reference Calibration Weights and Mass Standards Adjusted to Troemner UltraClass Tolerances
ASTM Individual Reference Calibration Weights
| ASTM Class | UltraClass; Troemner UltraClass |
| Internal Calibration Certificate | No Certificate |
| Construction | Two-piece |
| Density at 20°C | 7.85 g/cm3 |
| Design | Cylindrical |
| Dimensions | 10.25 in x 6 in (26.035 cm x 15.24 cm) (HxØ) |
| Protective Case | Included |
| Weight Material | 303 Stainless Steel |
| Weight Tolerance | 4.9 mg |
| Weight Value | 4 kg |
| Wgt Origin (USA) | USA |