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STN EN ISO 14903

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Electronic version (pdc file)

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Name: STN EN ISO 14903
Validity: Valid
Number of pages: 40
Language:
EN
Paper: 18,90€
Electronic version a) Only read (without ability to print and copy) 17,01€
b) Without ability to print, with ability to copy (printscreen) 18,90€
c) With ability to print and copy (printscreen) 24,57€
Slovak title Chladiace systémy a tepelné čerpadlá. Kvalifikácia tesnosti komponentov a spojov (ISO 14903: 2025)
English title Refrigerating systems and heat pumps - Qualification of tightness of components and joints (ISO 14903:2025)
Release Date: 01. 04. 2025
Date of withdrawal:
ICS: 27.080, 27.200
Sorting character/National clasification code 14 0649
Level of incorporation: idt EN ISO 14903:2025, idt ISO 14903:2025
Official Journal 03/25
Amendments
Replaced by:
Repleces: STN EN ISO 14903:2018-02 (14 0649)
Note in Official Journal:
Subject of the standard: This document specifies 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 relevant parts of the ISO 5149 series, including metal flexible piping. It specifies the level of tightness of the component as a whole and its assembly as specified by the manufacturer. It specifies additional requirements for mechanical joints that can be recognized as hermetically sealed joints. This document is applicable to joints of maximum DN 50 and components of internal volume of maximum 5 l and maximum weight of 50 kg. It is applicable to the hermetically sealed and closed components, joints and parts (e.g. fittings, bursting discs, flanged or fitted assemblies) used in the refrigerating installations, including those with seals, whatever their material and design are. This document does not apply to the tightness of flexible piping made from non-metallic material. This is covered ...
Preview: Náhľad normy (PDF)