Free for individual use - you will need MS-Excel
2003 or later installed on your computer to use these.
Requests for extra features & corrections are
welcomed Here
Gas Blending Utility Spread Sheets
Partial Pressure
Gas blender METRIC
Partial Pressure
Gas blender IMPERIAL
Continuous gas Blender
Injection rate calculator
Continuous gas Blender Trimix
Using 2 nitrox Analyzers
Continuously Gas Blender
Top up calculator
Compressor Utilities
Compressor size calculator
Compressor Filter lifetime calculator
compressor drive engine horse power calculator
Compressor Pulley Wheel size calculator
Compressor Fill rate analyzer
Compressor Cylinder head Adiabatic temperature rise calculator
Rebreather Utilities
Carbon Dioxide Scrubber Lifetime Calculator
For rebreathers and compressor pre-filters
Labeled with ICRA : The
Internet Content Rating Association