Refrigerating systems and heat pumps. Qualification of tightness of components and joints Ingestion-build-100580 Grade S: silane finish

Grade S: silane finish

7:1990 is applicable to the species

(previously ISO 26722)

with self-lubricating liner

The electrical part of appliances making use of other forms of energy is also within the scope of this standard

Refrigerating systems and heat pumps. Qualification of tightness of components and joints Ingestion-build-100580 Grade S: silane finish1 Scope This European Standard is intended to describe the qualification procedure for type approval of the tightness of hermetically sealed and closed components, joints and parts used in refrigerating systems and heat pumps as described in EN 378. The sealed and closed components, joints and parts concerned are, in particular, fittings, bursting discs, flanged or fitted assemblies. The tightness of flexible piping made from non metallic materials is