- US Sales
- International Sales
- Technical Support
- Human Resources
1g—100g ASTM Class 1 Calibration Weight Sets are highly-polished stainless steel, and recommended for analytical balances requiring first-order accuracy. ASTM Class 1 Precision Weight Sets come with weights supplied in 5-2-2-1 series as ASTM E617 specifies, and a protective case.
All weights or sets are available with optional NIST Traceable or NVLAP Certificates. Traceable Certificates document traceability to NIST and compliance with ASTM or OIML specifications. Add “T” to model number to specify a Traceable Certificate. NVLAP Weight Calibration Certificates provide certification to ISO, FDA, ANSI or other requirements. Report format and contents comply with NVLAP requirements. Add "W" to model number for NVLAP Certificate.
Enter your name, email, and questions below and we will reply during business hours (8am - 5pm EST, Monday through Friday).