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First, the gas detection converters…
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Multi-unit simultaneous converters. You'll like these...
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Assorted goodies...
Download Josh Madison’s wonderful freeware Units conversion program
Try Matthew Monroe’s feature-packed freeware Molecular Weight Calculator
Information and tables on flammable and combustible compounds
A table showing the saturation vapor pressure of water as a function of temperature. Useful in determining the dew point of a gas sample. Consult the detailed instructions.
For the shop floor…A table of fractions and decimal equivalents, to seven decimal places. And, a chart of standard drill sizes in decimal inches. Each is set up to print on a single sheet.
Bankrate.com’s Amortization Schedule Calculator
Calculator.net’s best-in-class Random Password Generator. You’ll use this one all the time.