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ASTM D93 for flash point by Pensky-Martens closed cup tester
3. Terminology3.1 Definitions3.1.1 dynamic, adj - in petroleum products - the conditionwhere the vapor above the test specimen and the test specimen are not in temperature equilibrium at the time that the ignition source is applied.3.1.1.1 Discussion - This is primarily caused by the heating of the test ...
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ASTM D93 for flash point by Pensky-Martens closed cup tester
1. Scope1.1 These test methods cover the determination of the flash point of petroleum products in the temperature range from 40 to 370°C by a manual Pensky-Martens closed-cup apparatus or an automated Pensky-Martens closed-cup apparatus, and the determination of the flash point of biodiesel in the ...
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ASTM D93 for flash point by Pensky-Martens closed cup tester
IntroductionThis flash point test method is a dynamic test method and depends on definite rates of temperature increases to control the precision of the test method. The rate of heating may not in all cases give the precision quoted in the test method because of the low thermal conductivity of certain ...
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ASTM D92 - Technique to prevent surface skin formation
Technique to prevent surface skin formation when testing flash point of asphalts by test Method D92X1.1 IntroductionX1.1.1 This technique to prevent surface skin formation when testing flash point of asphalts by Test Method D92 was developed by Imran Hussami of Frontier El Dorado Refining Company.X1.2 ...
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ASTM D92 - Verification of apparatus performance
A2.1 Certified Reference Material (CRM) - CRM is a stable, pure (99 + more % purity) hydrocarbon or other stable petroleum product with a method-specific flash point established by a method-specific interlaboratory study following RR:D02-1007 guidelines or ISO Guide 34 and 35. A2.1.1 Typical values ...
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ASTM D92 - Cleveland open cup tester
A1.1 Test Cup, conforming to Fig. 3 with dimensions as shown with the figure. The cup shall be made of brass or other non-rusting metal of equivalent heat conductivity. The cup may be equipped with a handle.A1.2 Heating Plate, shall be of sufficient dimension and materials to ensure that thermal heat ...
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ASTM D92 for flash and fire points by Cleveland open cup tester
14. Precision and Bias14.1 Precision - The precision of this test method as determined by the statistical examination of the interlaboratory test results is as follows:14.1.1 Repeatability - The difference between successive results, obtained by the same operator with the same apparatus under constant ...
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ASTM D92 for flash and fire points by Cleveland open cup tester
12. Calculations12.1 Observe and record the ambient barometric pressure (see Note 20) at the time of the test. When the pressure differs from 101.3 kPa (760 mm Hg), correct the flash point or fire point, or both, as follows:NOTE 20 - The barometric pressure used in this calculation is the ambient pressure ...
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ASTM D92 for flash and fire points by Cleveland open cup tester
11. Procedure11.1 Manual Apparatus11.1.1 Fill the test cup with the sample so that the top of the meniscus of the test specimen is level with the filling mark, and position the test cup on the center of the heating plate. The temperature of the test cup and the sample shall not exceed 56°C (100°F) ...
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ASTM D92 for flash and fire points by Cleveland open cup tester
10. Calibration and Standardization10.1 Adjust the automated flash point detection system, when used, according to the manufacturer's instructions.10.2 Calibrate the temperature measuring device according to the manufacturer's instructions.10.3 Verify the performance of the manual apparatus or the automated ...
