This is a cylindrical calibration weight.

Features

• Includes a manufacturers Certificate of Verification (this is NOT a NIST tracable certificate)
• The weight has been adjusted to the tolerance described.
• The weights have a polished nickel- finish.

Specification:

Manufactured to OIML R111 (International Organization of Legal Metrology Recommendation R111)

• Height(in):
• Diameter(in):
• Class: M1
• Weight of Mass: 1lb
• Material: Copper
• Density: 8.4 g/cm3
• Cladding Material: Ni + Ca
• Weight Tolerance: OIML R111 Class M1
• Permissible Error +/-: 25mg