Technical Resources

PJLA Technical Documents

• Determing Measurement Uncertainty for Dimensional Measurements – Part 1
• Determing Measurement Uncertainty for Dimensional Measurements – Uncertainty Calculator – Part 2
• Determining Measurement Uncertainty for Thermodynamic Metrology
• Determining Measurement Uncertainty for DC & Low Frequency Metrology
• Interpretation of Relative Uncertainty Equations
• Traceability Overview
• Calculators

International Laboratory Accreditation Corporation (ILAC)

• ILAC-G17 – Introducing the Concept of Uncertainty of Measurement in Testing in Association with the Application of the Standard ISO/IEC 17025
• ILAC-G24 / OIML D 10 (E) – Guidelines for the Determination of Calibration Intervals of Measuring Instruments

National Institute of Standards and Technology (NIST)

• NIST Special Publication 811 – Guide for the Use of the International System of Units (SI)
• NIST Handbook 105-1 – Specifications and Tolerances for Reference Standard Weights and Measures
• NISTIR 6919 – Recommended Guide for Determining and Reporting Uncertainties for Balances and Scales
• NIST Handbook 44-10 – Specifications, Tolerances, and Other Technical Requirements for Weighing and Measuring Devices

Utility Programs

• Temperature System Conversions
  1. Convert a number of Celsius degrees (Cº) to the equivalent number of Fahrenheit degrees (Fº)
  2. Convert a number of Fahrenheit degrees (Fº) to the equivalent number of Celsius degrees (Cº)
  3. Convert a temperature in degrees Celsius (ºC) to the equivalent temperature in degrees Fahrenheit (ºF)
  4. Convert a temperature in degrees Fahrenheit (ºF) to the equivalent temperature in degrees Celsius (ºC)
• Power Unit Conversions
  1. Convert dBm to Watts and Watts to dBm