JExcerpts from The Condensed Handbook of Measurement & Control, 2nd Edition Home

Troubleshooting Guide (in pH measurement)
Pressure Measurement Comparison
SI Derived United With Special Names
Volumetric Liquid Flow Units
Temperature Conversion Formulas

Excerpts from Handbook of Measurement Equations and Tables, 2nd Edition Home

Cullen Langford's Old Timers Tips for Approximate Plant Calculations
Principles of Humidity and Moisture Measurement
Psychrometric Chart
Some Pressure Units
Temperature Conversion Tables
Values of the Universal Gas Constant (R)
Voltage Current Ratio Table
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ISA CoolTools

PipeFlow Calculator
Units Converter
Josh Madison convert (a download)