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ASTM D5441 Standard Test Method for Analysis of Methyl Tert-Butyl Ether (MTBE) b
ASTM D5441 Standard Test Method for Analysis of Methyl Tert-Butyl Ether (MTBE) by Gas Chromatography13. Procedure13.1 Set the instrument operating variables to the values specified in Table 1 or to a temperature determined to be suitable by the evaluation in Section 11.13.2 When the gas chromatograph ...
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ASTM D5441 Standard Test Method for Analysis of Methyl Tert-Butyl Ether (MTBE) b
ASTM D5441 Standard Test Method for Analysis of Methyl Tert-Butyl Ether (MTBE) by Gas Chromatography9. Sampling9.1 MTBE can be sampled either in a floating piston cylinder or into an open container since vapor pressures less than 70 kPa (10 psi) are expected.9.1.1 Cylinder Sampling - Refer to Practice ...
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ASTM D5441 Standard Test Method for Analysis of Methyl Tert-Butyl Ether (MTBE) b
ASTM D5441 Standard Test Method for Analysis of Methyl Tert-Butyl Ether (MTBE) by Gas Chromatography7. Apparatus7.1 Gas Chromatograph - Instrumentation capable of operating at the conditions listed in Table 1. A heated flash vaporizing injector designed to provide a linear sample split injection (that ...
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ASTM D5441 Standard Test Method for Analysis of Methyl Tert-Butyl Ether (MTBE) b
ASTM D5441 Standard Test Method for Analysis of Methyl Tert-Butyl Ether (MTBE) by Gas Chromatography4. Summary of Test Method4.1 A representative aliquot of the MTBE product sample is introduced into a gas chromatograph equipped with a methyl silicone bonded phase fused silica open tubular column. Helium ...
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ASTM D5441 Standard Test Method for Analysis of Methyl Tert-Butyl Ether (MTBE) b
ASTM D5441 Standard Test Method for Analysis of Methyl Tert-Butyl Ether (MTBE) by Gas Chromatography1. Scope1.1 This test method covers the determination of the purity of methyl tert-butyl ether (MTBE) by gas chromatography. It also provides a procedure to measure impurities in MTBE such as C4 to C12 ...
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ASTM D4931 Standard Test Method for Gross Moisture in Green Petroleum Coke
ASTM D4931 Standard Test Method for Gross Moisture in Green Petroleum Coke10. Precision and Bias10.1 Precision - The precision of total moisture as determined in 9.1.3 by the statistical examination of the interlaboratory test results is as follows:10.1.1 Repeatability - The difference between successive ...
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ASTM D4931 Standard Test Method for Gross Moisture in Green Petroleum Coke
ASTM D4931 Standard Test Method for Gross Moisture in Green Petroleum Coke8. Procedure8.1 Preparation Procedure - When the sample contains free moisture, a conditioning step is needed before determining gross moisture. If the sample does not contain free water, go to 8.2.8.1.1 Distribute the required ...
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ASTM D4931 Standard Test Method for Gross Moisture in Green Petroleum Coke
ASTM D4931 Standard Test Method for Gross Moisture in Green Petroleum Coke6. Apparatus6.1 Ovens:6.1.1 Air Drying Oven - A device for passing slightly heated air over the sample. The oven shall be capable of maintaining a temperature of 10 to 15°C (18 to 27°F) above ambient with a maximum oven temperature ...
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ASTM D4931 Standard Test Method for Gross Moisture in Green Petroleum Coke
ASTM D4931 Standard Test Method for Gross Moisture in Green Petroleum Coke4. Summary of Test Method4.1 This test method is based on the loss in mass of a green petroleum coke sample in an air atmosphere under controlled conditions of temperature, time, and air flow.4.1.1 Preparation Procedure shall be ...
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ASTM D4931 Standard Test Method for Gross Moisture in Green Petroleum Coke
ASTM D4931 Standard Test Method for Gross Moisture in Green Petroleum Coke1. Scope1.1 This test method covers both the preparation procedure for samples containing free water (air drying loss (ADL) on gross moisture samples) and the determination of the gross moisture content of green petroleum coke.1.2 ...
