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ASTM D2505 for Ethylene, Other Hydrocarbons, and Carbon Dioxide in High-Purity E
ASTM D2505 for Ethylene, Other Hydrocarbons, and Carbon Dioxide in High-Purity Ethylene by Gas Chromatography8. Preparation of Apparatus8.1 Silica Gel Column - Dry the silica gel in an oven at 204°C (400°F) for 3 h, cool in a desiccator, and store in screw-cap bottles. Pour the activated silica gel ...
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ASTM D2505 for Ethylene, Other Hydrocarbons, and Carbon Dioxide in High-Purity E
ASTM D2505 for Ethylene, Other Hydrocarbons, and Carbon Dioxide in High-Purity Ethylene by Gas Chromatography5. Apparatus5.1 Any chromatographic instrument with an overall sensitivity sufficient to detect 2 ppmV or less of the compounds listed with a peak height of at least 2 mm without loss of resolution.5.2 ...
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ASTM D2505 for Ethylene, Other Hydrocarbons, and Carbon Dioxide in High-Purity E
ASTM D2505 for Ethylene, Other Hydrocarbons, and Carbon Dioxide in High-Purity Ethylene by Gas Chromatography3. Summary of Test Method3.1 The sample is separated in a gas chromatograph system utilizing four different packed chromatographic columns with helium as the carrier gas. Methane and ethane are ...
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ASTM D2505 for Ethylene, Other Hydrocarbons, and Carbon Dioxide in High-Purity E
ASTM D2505 for Ethylene, Other Hydrocarbons, and Carbon Dioxide in High-Purity Ethylene by Gas Chromatography1. Scope1.1 This test method covers the determination of carbon dioxide, methane, ethane, acetylene, and other hydrocarbons in high-purity ethylene. Hydrogen, nitrogen, oxygen, and carbon monoxide ...
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ASTM D1833 Standard Test Method for Odor of Petroleum Wax
ASTM D1833 Standard Test Method for Odor of Petroleum Wax10. Report10.1 Report the average panel rating calculated to the nearest 0.5 unit as the odor rating of the sample by ASTM D1833.11. Precision and Bias11.1 Precision - A precision statement is being developed for this test method.11.2 Bias - The ...
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ASTM D1833 Standard Test Method for Odor of Petroleum Wax
ASTM D1833 Standard Test Method for Odor of Petroleum Wax8. Procedure8.1 Scrape the surface of the sample to remove any foreign material and discard those scrapings. Using a clean scraper, prepare test specimens of approximately 10 g each of wax in thin shavings, placing them on odor-free paper or glassine. ...
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ASTM D1833 Standard Test Method for Odor of Petroleum Wax
ASTM D1833 Standard Test Method for Odor of Petroleum Wax5. Apparatus5.1 Scraper - A knife, vegetable scraper, or other sharp instrument that can be cleaned easily. Mechanical devices that produce thin shavings from wax, such as vegetable shredders or chisel-shaped bits, may be used.5.2 Paper - Odor-free ...
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ASTM D1833 Standard Test Method for Odor of Petroleum Wax
ASTM D1833 Standard Test Method for Odor of Petroleum Wax3. Summary of Test Method3.1 Odor test specimens are prepared from petroleum wax by placing approximately 10 g of thin shavings on odor-free paper or glassine. Individual test specimens are then evaluated for odor by each panel member and assigned ...
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ASTM D1833 Standard Test Method for Odor of Petroleum Wax
ASTM D1833 Standard Test Method for Odor of Petroleum Wax1. Scope1.1 This test method describes a procedure for rating the odor intensity of waxes derived from petroleum.1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility ...
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ASTM D3831 for Manganese in Gasoline By Atomic Absorption Spectroscopy
ASTM D3831 for Manganese in Gasoline By Atomic Absorption Spectroscopy12. Precision and Bias12.1 Precision - The precision of this test method as obtained by statistical examination of interlaboratory test results from eleven samples of motor gasoline, covering concentration range of 0.25 to 40 mg/L ...
