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What is Sludge?
What is Sludge?(1) Sludge is varnish which have higher water content.(2) Sludge looks like a soft mud-like deposit that settles out of the oil.(3) Sludge is also a soft contaminant.(4) Sludge contaminant, if prolonged elevated temperatures will evaporate the moisture from the sludge contaminant.
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What is Varnish?
What is Varnish?(1) Varnish is a soft contaminant composed of lubricant degradation by-products that are less than 1 micron in size and is not measured by traditional particle count.(2) Varnish deposit is a thin-orange, brown or black insoluble film deposit occurring on internal of lubricant systems.(3) ...
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Residue analysis on RPVOT test samples for single and multiple antioxidants chem
Residue analysis on RPVOT test samples for single and multiple antioxidants chemistry for turbine lubricantsABSTRACT: Antioxidant chemistry is playing an important role in meeting the longer-life and higher temperature performance criteria of modern generation turbine lubricants. Oxidative life assessment ...
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New Methods for Trending Varnish Buildup in Mineral Turbine Oils
New Methods for Trending Varnish Buildup in Mineral Turbine OilsBy Andy Sitton, Focus Laboratories and Jo Ameye, FluidtecAbstractThe topic of varnish in Turbine Oils is a very popular topic today. The changes in Gas Turbine designs over the last decade, coupled with the changes in turbine oil formulations, ...
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Foaming Characteristic (ASTM D892) and Air Release (ASTM D3427)
Foaming Characteristic (ASTM D892) and Air Release (ASTM D3427)Foaming and entrained air are air contamination in lubricant system.Causes of air contamination (foam & air bubbles)(1) Low surface tensionOxidationSolventsPolar contaminantsCertain additivesWater contamination(2) Small (Crushed) air ...
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Rust - Preventing Characteristics ASTM D665A
Rust - Preventing Characteristics ASTM D665AObjectiveTo determine the rust preventive properties of turbine oils and other industrial lubricants, particularly circulating systems.SignificanceA "Pass" result in this test means the lubricant will not typically produce significant rust formation in the ...
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Copper Strip Corrosion ASTM D130
Copper Strip Corrosion ASTM D130ObjectiveTo evaluate the degree to which a lubricant will corrode copper-containing materials (i.e., bronze, brass)SignificanceThe test helps to determine the suitability of a lubricant for use in equipment containing copper-based components. It may also be used with silver ...
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RPVOT - Measure Oxidation Stability ASTM D-2272
RPVOT - Measure Oxidation Stability ASTM D-2272RPVOT (Rotating Pressure Vessel Oxidation Test)RPVOT D-2272, previously known as RBOT (Rotating Bomb Oxidation Test)Primary Application:Turbine oilsHydraulic oilsCompressor oilsLarge Reservoir oilsObjectiveTo determine lubricant's resistance to oxidation ...
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Water Separability or Demusibility, ASTM D-1401
Water Separability or Demusibility, ASTM D-1401The ability of lubricating oil to separate water and resist emulsion is an important performance characteristic for application involving water contamination and turbulence.Poor water separability of lubricating oils can lead to(1) Rusting & corrosion(2) ...
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KIMMINS saves $300,000 with Oil Analysis
KIMMINS saves $300,000 with Oil Analysis"Preventing failures and extending oil-change intervals save tremendously more than the cost of regular samples.", concluded by Kimmins.As the Kimmins Contracting fleet began to age and catastrophic failures became a monthly event, Fleet Manager Mike O'Brien started ...
