Volume Transfer Graduated Provers

1 Page 1 This publication is available free of charge from: https://doi.org/10.6028/NIST.IR.7383 -2019 SOP 19 Standard Operating Procedure for Calibration of Graduated Neck-Type Metal Provers (Volume Transfer Method) 1 1 Introduc... Open at page → 2 Page 2 This publication is available free of charge from: https://doi.org/10.6028/NIST.IR.7383 -2019 international system of units (SI). Metrological traceability may be to the SI through a National Metrology Institute such as... Open at page → 3 Page 3 This publication is available free of charge from: https://doi.org/10.6028/NIST.IR.7383 -2019 2 Methodology Scope, Precision, Accuracy This procedure is applicable for the calibration of any size metal prover within the... Open at page → 4 Page 4 This publication is available free of charge from: https://doi.org/10.6028/NIST.IR.7383 -2019 reduce water retention errors. Care must be taken during wet-downs and runs to ensure complete drainage and consistent retenti... Open at page → 5 Page 5 This publication is available free of charge from: https://doi.org/10.6028/NIST.IR.7383 -2019 2.4.3.3 Run 1. Fill the standard and measure and record the temperature, t 1. 2.4.3.4 Adjust the standard prover to its refere... Open at page → 6 Page 6 This publication is available free of charge from: https://doi.org/10.6028/NIST.IR.7383 -2019 2.4.3.9 Perform the calculations described in section 3 to determine the prover volume at the appropriate reference temperatur... Open at page → 7 Page 7 This publication is available free of charge from: https://doi.org/10.6028/NIST.IR.7383 -2019 Multiple Deliveries Calculate V X60, the volume of the unknown prover at 60 F, using the following equation:  +     ... Open at page → 8 Page 8 This publication is available free of charge from: https://doi.org/10.6028/NIST.IR.7383 -2019 Prover Error/Correction or Deviation from Nominal The total calculated volume of the prover at its reference temperature shoul... Open at page → 9 Page 9 Table 3. Common reference temperatures. This publication is available free of charge from: https://doi.org/10.6028/NIST.IR.7383 -2019 Commodity Reference Temperature Frozen food labeled by volume (e.g., fruit juice) -18... Open at page → 10 Page 10 Table 4 Variables for volume equations at alternative temperatures. This publication is available free of charge from: https://doi.org/10.6028/NIST.IR.7383 -2019 Symbols Used in Equations V XtrefX volume of the unknown v... Open at page → 11 Page 11 This publication is available free of charge from: https://doi.org/10.6028/NIST.IR.7383 -2019 repeatability assessments and the source of the error cannot be determined conclusively and corrected, the measurement must be... Open at page → 12 Page 12 This publication is available free of charge from: https://doi.org/10.6028/NIST.IR.7383 -2019 A standard deviation chart is also used for measurement assurance through the evaluation of replicate measurements (See SOP 20... Open at page → 13 Page 13 This publication is available free of charge from: https://doi.org/10.6028/NIST.IR.7383 -2019 the process only and does not represent potential systematic differences in meniscus readings. In a laboratory with only one s... Open at page → 14 Page 14 Table 5. Example Uncertainty Budget Table. This publication is available free of charge from: https://doi.org/10.6028/NIST.IR.7383 -2019 Uncertainty Component Description Symbol Source Typical Distribution Uncertainty of... Open at page → 15 Page 15 This publication is available free of charge from: https://doi.org/10.6028/NIST.IR.7383 -2019 Conformity Assessment Evaluate compliance to applicable tolerances as needed or required by the customer or by legal metrology... Open at page → 16 Page 16 Appendix A Volume Transfer Data Sheet (page 1) Laboratory data and conditions: This publication is available free of charge from: https://doi.org/10.6028/NIST.IR.7383 -2019 Vessel Owner Operator Vessel Identification Dat... Open at page → 17 Page 17 This publication is available free of charge from: https://doi.org/10.6028/NIST.IR.7383 -2019 Appendix A Volume Transfer Data Sheet (page 2) Run 1: Data from the filled unknown field standard: Material for the Unknown: M... Open at page → 18 Page 18 Appendix B Example Temperature Correction Table A This publication is available free of charge from: https://doi.org/10.6028/NIST.IR.7383 -2019 Example for a 100 gallon prover and 60 °F reference temperature. Mild Steel... Open at page →