Petroleum and natural gas industries. Piping1 Scope 1. 1 This International Standard specifies the requirements for design and construction of piping for the petroleum and natural gas industries, including associated inspection and testing.

— EN 12221-2:2008

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Guidance for copper alloy castings is given in BS EN 1982

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The requirements in the consolidated Medical Devices Directive 93/42/EEC

NOTE 1 For assigning grades and species to the strength classes in EN 338 only three properties

Determination of fluid categories which are or could be in contact with potable water

Heating and ventilating installations

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– gas insulated switchgear (GIS)