Troemner calibration weight specifications:

• ASTM Class 1
• Made of stainless steel
• Protective case included
• No certificate provided
• Use Class 1 as a primary reference to calibrate other mass standards and use for traceability between national mass standards and ASTM Class 2 weights and lower. Class 1 is appropriate for calibrating high-precision balances with a readability as low as 0.1 mg.