-
ASTM D4530 test method for determination of carbon residue (Micro method)
ASTM D4530 test method for determination of carbon residue (Micro method)6. Apparatus6.1 Glass Sample Vials, 2-mL capacity, 12-mm outside diameter by approximately 35-mm high.6.2 Larger 4 dram Glass Sample Vials, 15-mL capacity (20.5 to 21-mm outside diameter by 70 more or less 1-mm high), may be used ...
-
ASTM D4530 test method for determination of carbon residue (Micro method)
ASTM D4530 test method for determination of carbon residue (Micro method)4. Summary of Test Method4.1 A weighed quantity of sample is placed in a glass vial and heated to 500°C under an inert (nitrogen) atmosphere in a controlled manner for a specific time. The sample undergoes coking reactions, and ...
-
ASTM D4530 test method for determination of carbon residue (Micro method)
ASTM D4530 test method for determination of carbon residue (Micro method)1. Scope1.1 This test method covers the determination of the amount of carbon residue (see Note 1) formed after evaporation and pyrolysis of petroleum materials under certain conditions and is intended to provide some indication ...
-
ASTM D974 method for acid and base number by color-indicator titration
ASTM D974 method for acid and base number by color-indicator titration12. Quality Control Checks12.1 Confirm the performance of the equipment or the procedure each day it is in use, by analyzing a quality control (QC) sample. It is advisable to analyze additional QC samples as appropriate, such as at ...
-
ASTM D974 method for acid and base number by color-indicator titration
ASTM D974 method for acid and base number by color-indicator titration9. Procedure for Acid Number9.1 Into an appropriate size Erlenmeyer flask or a beaker, introduce a weighed quantity of the sample as given in Table 1. Add 100 mL of the titration solvent and 0.5 mL of the indicator solution, and without ...
-
ASTM D974 method for acid and base number by color-indicator titration
ASTM D974 method for acid and base number by color-indicator titration6. Apparatus6.1 Burets (with the following dimensions):50-mL buret graduated in 0.1-mL subdivisions10-mL buret graduated in 0.05-mL or smaller subdivisions5-mL with 0.02-mL subdivisionsNOTE 4 - An automated buret capable of delivering ...
-
ASTM D974 method for acid and base number by color-indicator titration
ASTM D974 method for acid and base number by color-indicator titration4. Summary of Test Method4.1 To determine the acid or base number, the sample is dissolved in a mixture of toluene and isopropyl alcohol containing a small amount of water, and the resulting single-phase solution is titrated at room ...
-
ASTM D974 method for acid and base number by color-indicator titration
ASTM D974 method for acid and base number by color-indicator titration1. Scope1.1 This test method covers the determination of acidic or basic constituents (Note 1) in petroleum products and lubricants soluble or nearly soluble in mixtures of toluene and isopropyl alcohol. It is applicable for the determination ...
-
ASTM D4815 for elements in gasoline by gas chromatography
ASTM D4815 for elements in gasoline by gas chromatographyASTM D4815 Standard Test Method for Determination of MTBE, ETBE, TAME, DIPE, tertiary-Amyl Alcohol and C1 to C4 Alcohols in Gasoline by Gas Chromatography15. Precision and Bias15.1 Precision - The precision of this test method as determined by ...
-
ASTM D4815 for elements in gasoline by gas chromatography
ASTM D4815 for elements in gasoline by gas chromatographyASTM D4815 Standard Test Method for Determination of MTBE, ETBE, TAME, DIPE, tertiary-Amyl Alcohol and C1 to C4 Alcohols in Gasoline by Gas Chromatography13. Procedure13.1 Preparation of Sample - Transfer 0.5 mL of internal standard (Ws) by a volumetric ...
