Precisely formulated gas mixtures with known concentrations of particular target gases are referred to as calibration gas standards. To guarantee the accuracy of gas concentration measurements, almost ...

A method has been developed that allows direct, accurate calculation of recovery efficiency for Claus sulfur-recovery units (SRU). The calculation combines feed-gas data and tail-gas composition to ...

Calculating the IRR for a project with an initial outlay and single cash flow is very easy to do. It's also very practical for measuring the returns on investments in collectibles, commodities, ...