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ASTM D1157 Standard Test Method for Total Inhibitor Content (TBC) of Light Hydro
ASTM D1157 Standard Test Method for Total Inhibitor Content (TBC) of Light Hydrocarbons3. Summary of Test Method3.1 The catechol is separated from the butadiene by evaporation. The residue is dissolved in water and an excess of ferric chloride is added. The intensity of the yellow-colored complex is ...
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ASTM D1157 Standard Test Method for Total Inhibitor Content (TBC) of Light Hydro
ASTM D1157 Standard Test Method for Total Inhibitor Content (TBC) of Light Hydrocarbons1. Scope1.1 This test method covers the determination of total p-tertiary-butylcatechol inhibitor added to polymerization and recycle grades of butadiene or to other C4 hydrocarbon mixtures containing no phenolic material ...
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ASTM D4312 Test Method for Toluene-Insoluble (TI) Content of Tar and Pitch (Shor
ASTM D4312 Test Method for Toluene-Insoluble (TI) Content of Tar and Pitch (Short Method)14. Report14.1 Report the toluene-insoluble (TI) content to the nearest 0.1 %.15. Precision and Bias15.1 Based upon present available data, the following criteria shall be used for judging the acceptability of results ...
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ASTM D4312 Test Method for Toluene-Insoluble (TI) Content of Tar and Pitch (Shor
ASTM D4312 Test Method for Toluene-Insoluble (TI) Content of Tar and Pitch (Short Method)12. Procedure12.1 Weigh 0.50 g sample to the nearest 0.5 mg in a 150 mL tared beaker.12.2 While stirring sample with a glass rod, add 75 mL of hot toluene (95 °C +/- 5 °C) and continue stirring for a few minutes ...
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ASTM D4312 Test Method for Toluene-Insoluble (TI) Content of Tar and Pitch (Shor
ASTM D4312 Test Method for Toluene-Insoluble (TI) Content of Tar and Pitch (Short Method)8. Bulk Sampling8.1 Samples from shipments shall be taken in accordance with Practice D4296, and shall be free of foreign substances. Thoroughly mix the sample immediately before removing a representative portion ...
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ASTM D4312 Test Method for Toluene-Insoluble (TI) Content of Tar and Pitch (Shor
ASTM D4312 Test Method for Toluene-Insoluble (TI) Content of Tar and Pitch (Short Method)5. Apparatus5.1 Extraction Apparatus, flask with metal cap condenser as shown in Fig. 1.5.2 Extraction Thimbles, Alundum AN 485 coarse (formerly RA 98), 30 mm in diameter by 80 mm in height with flat bottom.5.3 Sieves, ...
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ASTM D4312 Test Method for Toluene-Insoluble (TI) Content of Tar and Pitch (Shor
ASTM D4312 Test Method for Toluene-Insoluble (TI) Content of Tar and Pitch (Short Method)3. Summary of Test Method3.1 The sample is digested, then extracted with hot toluene in an alundum thimble. The insoluble matter is dried and weighed.4. Significance and Use4.1 This test method is useful for evaluating ...
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ASTM D4312 Test Method for Toluene-Insoluble (TI) Content of Tar and Pitch (Shor
ASTM D4312 Test Method for Toluene-Insoluble (TI) Content of Tar and Pitch (Short Method)1. Scope1.1 This test method covers the determination of toluene-insoluble matter (TI) in tar and pitch.1.2 Since this test method is empirical, strict adherence to all details of the procedure is necessary.1.3 The ...
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ASTM D4072 Standard Test Method for Toluene-Insoluble (TI) Content of Tar and Pi
ASTM D4072 Standard Test Method for Toluene-Insoluble (TI) Content of Tar and Pitch13. Calculation13.1 Calculate the toluene-insoluble (TI) content as follows:TI, % = [(B - A)/C] x 100where:A = mass of alundum thimble without cone,B = mass of alundum thimble plus toluene-insoluble material, andC = mass ...
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ASTM D4072 Standard Test Method for Toluene-Insoluble (TI) Content of Tar and Pi
ASTM D4072 Standard Test Method for Toluene-Insoluble (TI) Content of Tar and Pitch12. Procedure12.1 The mass of sample taken for analysis shall yield between 150 mg and 250 mg of matter insoluble in toluene (TI), unless this would require less than the minimum acceptable sample mass of 1 g, in which ...
