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25kg Certified Reference Weight ASTM UltraClass, 30390267
Reference Calibration Weights and Mass Standards Adjusted to Troemner UltraClass Tolerances
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Troemner UltraClass offers high accuracy with tight tolerances and uncertainties of less than 1/4 of the tolerance. Weight surfaces meet or exceed ASTM and have a highly polished finish.
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Available in high grade stainless steels including Troemner Alloy 8 which possesses closely controlled density, extremely low magnetic properties, good stability, and resistance to corrosion.
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Available with certificate options traceable to NIST, including ISO/IEC 17025 accredited certification or traceable certification to aid in meeting SOP and regulatory requirements.
Product Specifications
Certificate Type | NVLAP Accredited Certificate |
ASTM Class |
UltraClass; Troemner UltraClass |
Weight Value | 25 kg |
Design | Cylindrical |
Weight Material | 316 Stainless Steel |
Protective Case | Not Included |
Dimensions (Height) | 22.619 cm (8.9 in) |
Calibration Certificate | ISO/IEC 17025 Accredited Certificate |
Construction | Two-piece |
Density at 20°C | 7.95 g/cm3 |
Dimensions (Ø_Diameter) | 15.11 cm (5.95 in) |
Uncertainty | 10 mg |
Weight Tolerance | 31 mg |
Wgt Origin (USA) | USA |
Legacy Material Number | 7007-0W |
Logistic Specifications
Country of origin | US |
Customs tariff number | 8423909000 |