ISO 14903:2025

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ISO 14903:2025 is an International Standard that outlines the qualification procedure for the tightness of components and joints used in refrigerating systems and heat pumps, including hermetically sealed and closed components, Intertek Inform says. It specifies the level of tightness for the component as a whole and its assembly, as defined by the manufacturer, and applies to various parts of the refrigerating system, including those with seals, regardless of their material. This standard ensures that the components and joints used in these systems meet the necessary standards for leak tightness and maintain the integrity of the refrigerating process.