Norm

NEN-EN-ISO 4263-3:2010 en

Aardolie en gerelateerde producten - Bepaling van het verouderingsgedrag van oliën en vloeistoffen die inhibitoren bevatten - TOST proef - Deel 3: Vochtvrije procedure voor synthetische hydraulische vloeistoffen

  • Deze norm is ingetrokken sinds 30-12-2015

106,87

Over deze norm

Status Ingetrokken
Aantal pagina's 21
Commissie Vloeibare en gasvormige brandstoffen, smeermiddelen en verwante producten
Gepubliceerd op 01-10-2010
Taal Engels
This part of ISO 4263 specifies a method for the determination of the ageing behaviour of synthetic hydraulic fluids of categories HFDR, HFDU, HEES and HEPG as defined, for example, in ISO 12922 and ISO 15380. The ageing is accelerated by the presence of oxygen and metal catalysts at elevated temperature, and the degradation of the fluid is followed by changes in acid number. Other parts of ISO 4263 specify similar procedures for the determination of ageing behaviour of mineral oils and specified categories of fire-resistant fluids used in hydraulic and other applications. This test method can be used to compare the oxidation stability of fluids that are not prone to contamination with water. However, because of the large number of individual field-service applications, the correlation between the results of this test and actual service performance can vary markedly, and is best judged on experience. The precision of this test method for synthetic hydraulic fluids is not known because interlaboratory data are not available. This method might not be suitable for use in specifications or in the event of disputed results as long as these data are not available. However, precision for inhibited turbine oils is given in Clause 11 for guidance as an indication of the precision that could be obtained for synthetic hydraulic fluids.

Details

ICS-code 75.120
Nederlandse titel Aardolie en gerelateerde producten - Bepaling van het verouderingsgedrag van oliën en vloeistoffen die inhibitoren bevatten - TOST proef - Deel 3: Vochtvrije procedure voor synthetische hydraulische vloeistoffen
Engelse titel Petroleum and related products - Determination of the ageing behaviour of inhibited oils and fluids using the TOST test - Part 3: Anhydrous procedure for synthetic hydraulic fluids
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