-
ASTM D1837 Standard Test Method for Volatility of Liquefied Petroleum (LP) Gases
ASTM D1837 Standard Test Method for Volatility of Liquefied Petroleum (LP) Gases1. Scope1.1 This test method is a measure of the relative purity of the various types of liquefied petroleum (LP) gases and helps to ensure suitable volatility performance. The test results, when properly related to vapor ...
-
ASTM D4893 Standard Test Method for Determination of Pitch Volatility
ASTM D4893 Standard Test Method for Determination of Pitch Volatility9. Precision9.1 Repeatability - Duplicate values by the same operator shall not be considered suspect unless they differ by more than 0.2 %.9.2 Reproducibility - The values reported by each of two laboratories representing the arithmetic ...
-
ASTM D4893 Standard Test Method for Determination of Pitch Volatility
ASTM D4893 Standard Test Method for Determination of Pitch Volatility8. Procedure8.1 Weigh 15 g of prepared sample into a tared aluminum weighing dish with precision of 0.1 mg.8.2 Start nitrogen purge system at a rate 10 cm3/min +/- 0.1 cm3/min (10 mL/min +/- 0.1 mL/min).8.3 Place top block onto bottom ...
-
ASTM D4893 Standard Test Method for Determination of Pitch Volatility
ASTM D4893 Standard Test Method for Determination of Pitch Volatility5. Dehydration of Sample5.1 Hard Pitch - If the solid bulk sample contains free water, air-dry a representative portion in a forced-draft oven at 50°C (122°F).5.2 Soft Pitch (Softening Point <60°C (<140°F)) - If the presence ...
-
ASTM D4893 Standard Test Method for Determination of Pitch Volatility
ASTM D4893 Standard Test Method for Determination of Pitch Volatility4. Apparatus4.1 Aluminum Block, 4 1/2-in. outside diameter, composed of two sections (Figs. 1-4).4.1.1 The top block is maintained at a chosen constant temperature according to the signal from the thermocouple inserted into the thermowell ...
-
ASTM D4893 Standard Test Method for Determination of Pitch Volatility
ASTM D4893 Standard Test Method for Determination of Pitch Volatility1. Scope1.1 This test method covers the determination of the percent of pitch volatility.1.2 Since this test method is empirical, strict adherence of the procedure is necessary.1.3 This standard does not purport to address all of the ...
-
ASTM D4421 Standard Test Method for Volatile Matter in Petroleum Coke
ASTM D4421 Standard Test Method for Volatile Matter in Petroleum Coke11. Calculations11.1 Calculate the volatile matter of the moisture free prepared coke as follows:Volatile matter, mass % = (A/B) x 100where:A = mass loss of the sample, g, andB = mass of sample, g.12. Precision and Bias12.1 The precision ...
-
ASTM D4421 Standard Test Method for Volatile Matter in Petroleum Coke
ASTM D4421 Standard Test Method for Volatile Matter in Petroleum Coke10. Procedure10.1 Ignite a platinum crucible and cover at 950°C for 5-min periods to constant mass (+/- 0.5 mg). A burner or any furnace is to be used but the crucible can be set in a nichrome wire support regardless of the style of ...
-
ASTM D4421 Standard Test Method for Volatile Matter in Petroleum Coke
ASTM D4421 Standard Test Method for Volatile Matter in Petroleum Coke7. Apparatus7.1 Furnace, Fieldner, electric, ASTM, calibrated (Test Method E 220) and regulated to maintain a temperature of 950°C (1742°F) +/- 15°C as measured by a thermocouple mounted inside the furnace.7.2 Nickel Chromium Crucible ...
-
ASTM D4421 Standard Test Method for Volatile Matter in Petroleum Coke
ASTM D4421 Standard Test Method for Volatile Matter in Petroleum Coke4. Summary of Test Method4.1 Volatile matter of a moisture free petroleum coke is determined by measuring the mass loss of the coke when heated under the exact conditions of this procedure.5. Significance and Use5.1 The volatile matter ...
