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  • ASTM D664 for acid number of petroleum products ASTM D664 for acid number of petroleum productsASTM D664 for acid number of petroleum products by potentiometric titration1. Scope1.1 This test method covers procedures for the determination of acidic constituents in petroleum products and lubricants soluble or nearly soluble in mixtures of toluene and ...
  • Biodiesel Production and Quality Biodiesel Production and QualityLast updated April 26, 2007The production processes for biodiesel are well known. There are three basic routes to biodiesel production from oils and fats:* Base catalyzed transesterification of the oil.* Direct acid catalyzed transesterification of the oil.* Conversion ...
  • General requirements of portable transformer oil gas analyser General requirements of portable transformer oil gas analyserTechnical specifications portable DGA deviceSpecific data of portable DGA deviceDetection range for key gasesGas Lower Limit (ppm) Upper Limit (ppm)Hydrogen: 5 5,000Methane: 1 50,000Ethane: ...
  • Nigeria tender for portable transformer oil gas analyser Nigeria tender for portable transformer oil gas analyserSPECIFICATION FOR PORTABLE TRANSFORMER OIL GAS ANALYSER FOR FIELD APPLICATIONModel: Transport X (or equivalent)Analytical Principle: Photo Acoustic Spectroscopy (For alternative please indicate)Parameter and value requirementCompoundMeasurement ...
  • Physical Parameters of Transformer Oil Physical Parameters of Transformer Oil(1) Inter Facial Tension of Transformer OilInter facial tension between the water and oil interface is the way to measure molecular attractive force between water and oil. It is measured in Dyne/cm or mili-Newton/meter. Inter facial tension is exactly useful for ...
  • Chemical Parameters of Transformer Oil Chemical Parameters of Transformer Oil(1) Water Content in Transformer OilMoisture or water content in transformer oil is highly undesirable as it affects adversely the dielectric properties of oil. The water content in oil also affects the paper insulation of the core and winding of transformer. Paper ...
  • Electrical Parameter of Transformer Oil Electrical Parameter of Transformer Oil(1) Dielectric Strength of Transformer OilDielectric strength of transformer oil is also known as breakdown voltage of transformer oil or BDV of transformer oil. Break down voltage is measured by observing at what voltage, sparking strants between two electrods ...
  • Parameters of Transformer Oil Parameters of Transformer OilThe parameters of transformer oil are categorized as,(1) Electrical parameters: Dielectric strength, specific resistance, dielectric dissipation factor.(2) Chemical parameter: Water content, acidity, sludge content.(3) Physical parameters: Inter facial tension, viscosity, ...
  • Introduction of Insulating Oil Introduction of Insulating OilInsulating oil in an electrical power transformer is commonly known as transformer oil. It is normally obtained by fractional distillation and subsequent treatment of crude petroleum. That is why this oil is also known as mineral insulating oil. Transformer oil serves mainly ...
  • Review of Dissolved Gas Analysis(DGA) of Transformer Oil Review of Dissolved Gas Analysis(DGA) of Transformer OilWhenever electrical power transformer goes under abnormal thermal and electrical stresses, certain gases are produced due to decomposition of transformer insulating oil, when the fault is major, the production of decomposed gases are more and they ...