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50lb NIST Class F Calibration Weights are cast iron with grip handles, and designed for higher capacity, less sensitive balances and scales.
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 the 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 the model number for the NVLAP Certificate.
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