ISO 13357-1:2017 PDF

Scope: This document specifies a procedure for the evaluation of the filterability of lubricating oils, particularly those designed for hydraulic applications, in the presence of water. The procedure only applies to mineral-based oils, since fluids manufactured from other materials (e.g. fire-resistant fluids) may not be compatible with the specified test membranes. The range of application has been evaluated with oils of viscosity up to ISO viscosity grade (VG) 100, as defined in ISO 3448. Within the range described, the filterability as defined is not dependent on the viscosity of the oil. The procedure is not suitable for some hydraulic oils on which specific properties have been conferred by the use of insoluble/partially soluble additives, or by particularly large molecular species. NOTE Filterability is a prime requirement for lubricating oils used in hydraulic systems because of the fine filters used in this application. This document defines a method for assessing the filterability of oils in the presence of contaminating water. It is noted that some oils will exhibit poorer filterability characteristics in these conditions. the presence of water in the oil is unlikely. An oil which has good filterability in the presence of contaminating water will not necessarily have equally good filterability in dry conditions. An oil having good filterability only when wet is unlikely to be generally acceptable.

ISO 13357-1:2017 Referenced Document

ISO 1219-1:2012 Fluid power systems and components - Graphical symbols and circuit diagrams - Part 1: Graphical symbols for conventional use and data-processing applications
ISO 13357-2:2017 Petroleum products - Determination of the filterability of lubricating oils - Part 2: Procedure for dry oils
ISO 3170:2004 Petroleum liquids - Manual sampling
ISO 3448:1992 Industrial liquid lubricants; ISO vicosity classification
ISO 3696:1987 Water for analytical laboratory use; Specification and test methods
ISO 4788:2005 Laboratory glassware - Graduated measuring cylinders
ISO 6614:1994 Petroleum products - Determination of water separability of petroleum oils and synthetic fluids

2017 ISO 13357-1:2017 Petroleum products - Determination of the filterability of lubricating oils - Part 1: Procedure for oils in the presence of water
2002 ISO 13357-1:2002 Petroleum products - Determination of the filterability of lubricating oils - Part 1: Procedure for oils in the presence of water