International Standard
ISO 4080:2009
Rubber and plastics hoses and hose assemblies — Determination of permeability to gas
Reference number
ISO 4080:2009
ISO 4080:2009
Edición 4
2009-12
2009-12
© ISO 2024
International Standard
Resumen
ISO 4080:2009 specifies three methods for the determination of the volume of gas diffusing through a rubber or plastics hose or length of tubing in a specified time.
- Method 1: For determining the permeability of the complete hose or length of tubing, excluding end-fittings, to the test gas. The permeability is calculated with respect to the length of the hose or tubing.
- Method 2: For determining the permeability at the hose/fitting interface. This method is used when determining the permeability characteristics of hoses with an unpricked cover, when the gas usually issues from the textile reinforcement at the cut ends. The permeability is calculated with respect to the length of the hose.
- Method 3: For determining precisely the permeability of a hose or hose assembly to the test gas. The permeability is calculated with respect to the surface area of the hose lining.
The methods are applicable only to gases which are insoluble in water.
Informaciones generales
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Estado: PublicadoFecha de publicación: 2009-12Etapa: Norma Internacional para revisar [90.92]
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Edición: 4Número de páginas: 8
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Comité Técnico :ISO/TC 45/SC 1ICS :23.040.70
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