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OBA-416 series 1mg—100g ASTM Class 4 Calibration Mass Set is satin-finished stainless steel and used with less sensitive balances for applications in which average accuracy is sufficient. Precision Mass Sets have weights supplied in 5-2-2-1 series as ASTM E617 specifies, and protective case.
All masses 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.
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