BS EN ISO 14903:2017
Current
The latest, up-to-date edition.
Refrigerating systems and heat pumps. Qualification of tightness of components and joints
Hardcopy , PDF
English
04-09-2017
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 Test requirements
6 Requirements for hermetically sealed systems
7 Test procedures
8 Test report
9 Information to the user
Annex A (informative) - Equivalent tightness control levels
Annex B (normative) - Test arrangements
Bibliography
Gives 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 ISO 5149.
| Committee |
RHE/18
|
| DevelopmentNote |
Supersedes 16/30338439 DC & BS ISO 14903. (09/2017)
|
| DocumentType |
Standard
|
| Pages |
44
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
This document provides 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 ISO5149 . 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 dealt with in ISO13971 . Metal flexible piping are covered by this document.
The requirements contained in this document are applicable to joints of maximum DN50 and components of internal volume of maximum 5l and maximum weight of 50kg.
This document is intended to characterize their tightness stresses met during their operations, following the fitting procedure specified by the manufacturer, and to specify the minimal list of necessary information to be provided by the supplier of a component to the person in charge of carrying out this procedure.
It specifies the level of tightness of the component, as a whole, and its assembly as specified by its manufacturer.
It applies to the hermetically sealed and closed components, joints and parts used in the refrigerating installations, including those with seals, whatever their material and their design are.
This document specifies additional requirements for mechanical joints that can be recognized as hermetically sealed joints.
| Standards | Relationship |
| EN ISO 14903:2017 | Identical |
| ISO 14903:2017 | Identical |
| ISO 7619-1:2010 | Rubber, vulcanized or thermoplastic Determination of indentation hardness Part 1: Durometer method (Shore hardness) |
| ISO 5149-2:2014 | Refrigerating systems and heat pumps — Safety and environmental requirements — Part 2: Design, construction, testing, marking and documentation |
| EN 14276-1:2006+A1:2011 | Pressure equipment for refrigerating systems and heat pumps - Part 1: Vessels - General requirements |
| ISO 5149-4:2014 | Refrigerating systems and heat pumps — Safety and environmental requirements — Part 4: Operation, maintenance, repair and recovery |
| IEC 60068-2-64:2008 | Environmental testing - Part 2-64: Tests - Test Fh: Vibration, broadband random and guidance |
| EN 12263:1998 | Refrigerating systems and heat pumps - Safety switching devices for limiting the pressure - Requirements and tests |
| ISO 5149-1:2014 | Refrigerating systems and heat pumps — Safety and environmental requirements — Part 1: Definitions, classification and selection criteria |
| IEC 60335-2-34:2012+AMD1:2015+AMD2:2016 CSV | Household and similar electrical appliances - Safety - Part 2-34:Particular requirements for motor-compressors |
| EN 14276-2:2007+A1:2011 | Pressure equipment for refrigerating systems and heat pumps - Part 2: Piping - General requirements |
| EN 12693:2008 | Refrigerating systems and heat pumps - Safety and environmental requirements - Positive displacement refrigerant compressors |
| ISO 175:2010 | Plastics Methods of test for the determination of the effects of immersion in liquid chemicals |
| 2014/68/EU : 2014 COR 1 2015 | DIRECTIVE 2014/68/EU OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL OF 15 MAY 2014 ON THE HARMONISATION OF THE LAWS OF THE MEMBER STATES RELATING TO THE MAKING AVAILABLE ON THE MARKET OF PRESSURE EQUIPMENT TEXT WITH EEA RELEVANCE |
| ISO 5149-3:2014 | Refrigerating systems and heat pumps — Safety and environmental requirements — Part 3: Installation site |
| EN 13134:2000 | Brazing - Procedure approval |
| ISO 13971:2012 | Refrigeration systems and heat pumps — Flexible pipe elements, vibration isolators, expansion joints and non-metallic tubes — Requirements and classification |
| ISO 48:2010 | Rubber, vulcanized or thermoplastic Determination of hardness (hardness between 10 IRHD and 100 IRHD) |
| ISO 1817:2015 | Rubber, vulcanized or thermoplastic Determination of the effect of liquids |
| ISO 18517:2015 | Rubber, vulcanized or thermoplastic Hardness testing Introduction and guide |
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