Transcription of Water Separability or Demusibility , ASTM D-1401
1 Fluid & Oil Analysis TechnologyWater Separability or Demusibility , astm D-1401 Water Separability or Demusibility , astm D-1401 The ability of lubricating oil to separate Water and resist emulsion is an important performance characteristic for application involving Water contamination and turbulence. Rusting & corrosion Possible cavitationPoor Water Separability of lubricating oils can lead to Premature lubricant degradation Mechanical failure EtcFluid & Oil Analysis TechnologyWater Separation Ability by Demulsibility Characteristic of Lubricant ,Test Method astm D1401 Water Separation Ability by Demulsibility Characteristic of Lubricant ,Test Method astm D1401 Objective:Apparatus and Procedure:Re port ed re s ult s:Significance:To de te rmin e th e wa te r se pa ra tio n ch ar acte risti cs of the lubricant4 0 ml o f t es t o il is he ated t o test temp erat ur e of 130 F (o r 180 F) as 40 ml of distilled Water is gradually added to a graduated cylinder containing the mixture.
2 Once the contents reach test temperature, a stir rod is lowered into the cylinder to s tir th e mixt ur e at 1, 50 0 rp m fo r 5 minu tes. At c on st an t temperature, the contents are left undisturbed, the separation o f t he o il an d wate r is re co rd ed a t o ne mi nu te in te rv als for th e first ten minutes, then at 15, 20, 30, 40, 50 and 60 minutes. This test method provides a guide for determining the Water separation characteristics for oils. This test was developed specifically for steam turbine oils having viscosities of 32 to 150 cSt at 40 C. This is the method recommended for use with synthetic three measurements for oil/ Water /emulsion (cuff or collar) are presented in that order and are separated by forward slashes. Test minutes, are shown in parenthesis, , 40/40/0 (15).Fluid & Oil Analysis TechnologyWater Separability test reportWater Separability test report
