FD ISO/TR 10686
Hydraulic fluid power - Method to relate the cleanliness of a hydraulic system to the cleanliness of the components and hydraulic fluid that make up the system
ISO/TR 10686:2013 describes methods that can be used to: relate the cleanliness of a hydraulic system to the cleanliness of its components and the hydraulic fluid belonging to the system; estimate the final cleanliness level of an assembled hydraulic system filled with the hydraulic fluid, upon its release from the manufacturing area (the estimation of the final cleanliness level is based on the cleanliness level of each component in the system and on the cleanliness level of the filling fluid); calculate and manage cleanliness requirements of components and subassemblies that make up a system and of the fluid filling it so as to achieve a required cleanliness level (RCL) for the final system. These methods can apply whatever the particle size considered and can also be used for other types than hydraulic fluid power.
ISO/TR 10686:2013 describes methods that can be used to: relate the cleanliness of a hydraulic system to the cleanliness of its components and the hydraulic fluid belonging to the system; estimate the final cleanliness level of an assembled hydraulic system filled with the hydraulic fluid, upon its release from the manufacturing area (the estimation of the final cleanliness level is based on the cleanliness level of each component in the system and on the cleanliness level of the filling fluid); calculate and manage cleanliness requirements of components and subassemblies that make up a system and of the fluid filling it so as to achieve a required cleanliness level (RCL) for the final system. These methods can apply whatever the particle size considered and can also be used for other types than hydraulic fluid power.
- Avant-proposiv
- Introductionv
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1 Domaine d'application1
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2 Références normatives1
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3 Termes et définitions1
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4 Symboles et unités2
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5 Considérations fondamentales3
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5.1 Pollution particulaire3
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5.2 Exigences relatives à la connaissance du système5
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6 Prédiction de la propreté du système à partir de la propreté des composants (approche ascendante)6
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6.1 Principes6
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6.2 Détermination du niveau de propreté d'un composant7
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6.3 Prédiction du niveau de propreté d'un système assemblé7
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6.4 Prédiction du niveau de propreté d'un système neuf à sa sortie de la zone de fabrication7
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6.5 Prédictions pratiques8
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7 Spécification d'exigences de propreté des composants à partir du niveau de propreté du système (approche descendante)9
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7.1 Principe9
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7.2 Spécification d'exigences identiques9
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7.3 Spécification d'exigences différentes9
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8 Relation entre les niveaux de propreté par unité de volume et les niveaux de propreté par unité de surface10
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8.1 Rapport V/A10
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8.2 Impact du niveau de propreté des surfaces sur le niveau de propreté du fluide10
- Annexe A (informative) Détermination des caractéristiques géométriques des composants11
- Annexe B (informative) Exemple de calcul de la propreté d'un système assemblé à partir de la propreté des composants individuels12
- Annexe C (informative) Impact du niveau de propreté des surfaces sur le niveau de propreté du fluide16
- Annexe D (informative) Relation entre volume et surface19
- Annexe E (informative) Relation entre la propreté des pièces et la propreté des composants20
- Bibliographie23
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