20 g Range, Calibration Weight Set, ASTM Class 1

Key Highlights

• Designed to meet ASTM E617-23 specifications

• Stainless steel polished finish

• Nominal value marked on weights

• Serial numbers applied to case (weights may be marked with symbol)

• Density 7.95g/cm³

• Supplied in a precision-machined, crush-resistant case

This comprehensive 20-gram calibration weight set is manufactured to the exacting tolerances of ASTM Class 1, making it an essential tool for the highest levels of measurement assurance. Its stainless steel construction, polished finish, and documented density ensure minimal susceptibility to environmental factors like magnetism and corrosion, providing a stable and reliable mass standard.

Primary applications include the calibration and routine verification of Class I and II balances, tolerance testing, and the verification of lower-class weights (ASTM Class 4, 5, and 6). This set is also perfectly suited for educational use in student laboratories and for rough weighing operations where a known traceable standard is required. Each weight is clearly marked with its nominal value for easy identification and proper handling.

Secure your essential calibration standard. Contact our team today to request pricing, confirm availability, or speak with a calibration specialist for your laboratory or metrology requirements.

Free shipping: To the 48 contiguous states (residential, farm and rural deliveries may carry a carrier surcharge).
Ship date: Rice Lake Weighing Systems products ship on the maker's own lead time; we confirm the date when you order, or call 844-735-5386 before you buy.
Tracking: Emailed the moment your order ships.
Questions: (844) 735-5386 or info@selletonscales.com.