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1. Sealing types
Leaktightness is the quality of confinement of a fluid, liquid, gas or solid within a system.
1.1 Definition of a leak
Theoretically, the seal is no longer satisfactory if there is a leak, which translates into the flow of confined fluid from one side of the containment wall to the other under the action of a pressure or concentration difference on either side of the wall.
A leak can take one of two forms:
material permeability: even at ordinary temperatures, certain materials can let fluid through through a succession of more or less complex absorption, diffusion and desorption phenomena; elastomers, for example, are relatively permeable materials, especially with certain gases, whereas...
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Sealing types
Required sealing level
Bibliography
Standards
- Non-destructive testing – Leak test – Method and technique selection criteria – Classification : A09-105. - NF EN 1779 - Déc. 1999
- Non-destructive testing – Leak test – Method and technique selection criteria – Classification index: A09-105/A1. - NF EN 1779/A1 - Juil. 2004
- Non-destructive testing – Leak test – Bubble control – Classification : A09-108. - NF EN 1593 - Nov. 1999
- Non-destructive testing – Leak...
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