Program ISO-5167 will size orifice plates for given design conditions, find pressure drop for a given flow, or flow for a given pressure drop. The ISO-5167-2: 2003 standard is originally designed for gas orifices. In this programs the standard is also used for liquid orifices. The program lets you calculate the following orifice-types: - Gas Orifice - Liquid Orifice - Restriction Orifice - Gas - Restriction Orifice - Liquid The fprogram can be used to calculate size, flowrate or pressure drop of the following fluids: Gases: - Natural gas - Nitrogen - Air Liquids: - Oil - Water - Methanol/Water mixtures - Monoethylene glycol/Water mixtures - Diethylene glycol/Water mixtures - Triethylene glycol/Water mixtures