Advanced Mass Calibration and Measurement Assurance Program for State Calibration Laboratories NISTIR 5672 2005 Ed

This publication provides guidelines for evaluating datafrom advanced mass calibrations and for establishing measurement assurance programs in precision mass calibration laboratories. The NIST Weights and Measures Division (WMD) will use these guidelines whenevaluating advanced mass calibration data for State laboratories that request technical support, Recognition, and/or National Voluntary Laboratory Accreditation Program (NVLAP) accreditation.Advanced masscalibrations use weighing...
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This publication provides guidelines for evaluating datafrom advanced mass calibrations and for establishing measurement assurance programs in precision mass calibration laboratories. The NIST Weights and Measures Division (WMD) will use these guidelines whenevaluating advanced mass calibration data for State laboratories that request technical support, Recognition, and/or National Voluntary Laboratory Accreditation Program (NVLAP) accreditation.Advanced masscalibrations use weighing designs, such as those found in NBS Handbook 145 (SOP 4, 5), NISTIR 6969, Selected Publications , NBS Technical Note 952 , and the NIST/SEMATECH e-Handbook of Statistical Methods thatrequire the use of computer software (mass code) for the data reduction. These weighing designs are normally used when highprecision (low uncertainty) mass measurement results are sought, although weighing designs can be used at any uncertainty level. The uncertainty reported using advanced weighing designs is based on the historically observed process of similar measurements and is very dependent upon correct procedures for defining these processes.