Greek Alphabet Chart
The Greek Alphabet by upper and lower case symbols and name.
PDF (31 KB)
General Reference
National Electrical Contractors Association (NECA) Abbreviations
A list of abbreviations, commonly used by electrical contractors, and the words or phrases they represent.
PDF (27 KB)
General Reference
Tropical Storm / Hurricane Classification Chart
Hurricane classification chart based on wind speed and and central storm pressure.
PDF (11 KB)
General Reference
Metric Conversion Table
Conversion table for Metric to English units of measurement.
PDF (15 KB)
General Reference
State/Local Sales Tax Rate Chart
A list of state/local retail sales tax rates as identified by the Federation of Tax Administrators, updated January 1, 2018.
PDF (13 KB)
General Reference
Temperature Conversion Chart
Temperature conversion formulas for Celsius, Farenheit and Kelvin units.
PDF (12 KB)
General Reference
