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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 titration12. Calculation12.1 Manual Titration - Plot the volumes of the 0.1-mol/L alcoholic KOH solution added against the corresponding meter readings (see Fig. 1). Mark as an end point only ...
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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 titration11. Procedure for Acid Number and Strong Acid Number11.1 Into a 250-mL beaker or a suitable titration vessel, introduce a weighed quantity of sample as recommended in Table 1 (see ...
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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 titration9. Standardization of Apparatus9.1 Determination of Meter Readings for the Aqueous Buffer Solutions - To ensure comparable selection of end points when definite inflection points ...
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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 titration8. Electrode System8.1 Preparation of Electrodes:8.1.1 When a Ag/AgCl reference electrode is used for the titration and it contains an electrolyte which is not 1M–3M LiCl in ethanol, ...
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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 titration7. Reagents7.1 Purity of Reagents - Reagent grade chemicals shall be used in all tests. Unless otherwise indicated, it is intended that all reagents shall conform to the specifications ...
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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 titration6. Apparatus6.1 Manual Titration Apparatus:6.1.1 Meter, a voltmeter or a potentiometer that will operate with an accuracy of more or less 0.005 V and a sensitivity of more or less ...
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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 titration3. Terminology3.1 Definitions:3.1.1 acid number, n-the quantity of base, expressed as milligrams of potassium hydroxide per gram of sample, required to titrate a sample in a specified ...
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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 ...
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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 ...
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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: ...
