-
ASTM D3231 Standard Test Method for Phosphorus in Gasoline
ASTM D3231 Standard Test Method for Phosphorus in Gasoline9. Procedure9.1 Clean all glassware before use with cleaning acid or by some procedure that does not involve use of commercial detergents. These compounds often contain alkali phosphates that are strongly adsorbed by glass surfaces and are not ...
-
ASTM D3231 Standard Test Method for Phosphorus in Gasoline
ASTM D3231 Standard Test Method for Phosphorus in Gasoline8. Calibration8.1 Transfer by buret, or a volumetric transfer pipet, 0.0, 0.5, 1.0, 1.5, 2.0, 3.0, 3.5, and 4.0 mL of phosphorus standard solution into 100-mL volumetric flasks.8.2 Pipet 10 mL of H2SO4(1 + 10) into each flask. Mix immediately ...
-
ASTM D3231 Standard Test Method for Phosphorus in Gasoline
ASTM D3231 Standard Test Method for Phosphorus in Gasoline5. Apparatus5.1 Buret, 10-mL capacity, 0.05-mL subdivisions.5.2 Constant-Temperature Bath, equipped to hold several 100-mL volumetric flasks submerged to the mark. Bath must have a large enough reservoir or heat capacity to keep the temperature ...
-
ASTM D3231 Standard Test Method for Phosphorus in Gasoline
ASTM D3231 Standard Test Method for Phosphorus in Gasoline3. Summary of Test Method3.1 Organic matter in the sample is decomposed by ignition in the presence of zinc oxide. The residue is dissolved in sulfuric acid and reacted with ammonium molybdate and hydrazine sulfate. The absorbance of the Molybdenum ...
-
ASTM D3231 Standard Test Method for Phosphorus in Gasoline
ASTM D3231 Standard Test Method for Phosphorus in Gasoline1. Scope1.1 This test method covers the determination of phosphorus generally present as pentavalent phosphate esters or salts, or both, in gasoline. This test method is applicable for the determination of phosphorus in the range from 0.2 to 40 ...
-
ASTM D4047 Test Method for Phosphorus in Lubricating Oils and Additives
ASTM D4047 Test Method for Phosphorus in Lubricating Oils and AdditivesASTM D4047 Standard Test Method for Phosphorus in Lubricating Oils and Additives by Quinoline Phosphomolybdate Method10. Report10.1 Report result to three significant figures as the Phosphorus Content, ASTM D4047/IP 149.11. Quality ...
-
ASTM D4047 Test Method for Phosphorus in Lubricating Oils and Additives
ASTM D4047 Test Method for Phosphorus in Lubricating Oils and AdditivesASTM D4047 Standard Test Method for Phosphorus in Lubricating Oils and Additives by Quinoline Phosphomolybdate Method8. Procedure8.1 For additive concentrates, weigh into a crucible 1 g of the homogenized blend prepared in 7.6.8.2 ...
-
ASTM D4047 Test Method for Phosphorus in Lubricating Oils and Additives
ASTM D4047 Test Method for Phosphorus in Lubricating Oils and AdditivesASTM D4047 Standard Test Method for Phosphorus in Lubricating Oils and Additives by Quinoline Phosphomolybdate Method7. Blending Procedure7.1 Samples having a phosphorus content greater than 0.3 mass % should be blended in white oil ...
-
ASTM D4047 Test Method for Phosphorus in Lubricating Oils and Additives
ASTM D4047 Test Method for Phosphorus in Lubricating Oils and AdditivesASTM D4047 Standard Test Method for Phosphorus in Lubricating Oils and Additives by Quinoline Phosphomolybdate Method5. Apparatus5.1 Silica Crucibles, 40-mm internal diameter at the top and 40 mm in height. The internal surface should ...
-
ASTM D4047 Test Method for Phosphorus in Lubricating Oils and Additives
ASTM D4047 Test Method for Phosphorus in Lubricating Oils and AdditivesASTM D4047 Standard Test Method for Phosphorus in Lubricating Oils and Additives by Quinoline Phosphomolybdate Method3. Summary of Test Method3.1 Additive concentrates are diluted with phosphorus-free white oil to produce a working ...
