This European Standard specifies minimum requirements for free flow surface supplied and free flow surface oriented diving apparatus to ensure a minimum level of safe operation of the apparatus. It applies to the following:a maximum depth of 50 m for apparatus using:1) air or;2) oxygen or;3) oxygen in nitrogen mixtures (Nitrox) or;4) oxygen in helium mixtures (Heliox) or;5) oxygen, nitrogen and helium mixtures (Trimix);water temperatures between 4 °C and 34 °C or outside these temperatures as specified by the manufacturer;environmental temperatures between -20 °C and 50 °C or outside these temperatures as specified by the manufacturer.The requirements of th
DS/EN 15333-2:2009 history
2009DS/EN 15333-2:2009 Respiratory equipment - Open-circuit umbilical supplied compressed gas diving apparatus - Part 2: Free flow apparatus