ASTM D6729 PDF

Active view current version of standard. Other Historical Standards. Work Item s - proposed revisions of this standard. More D Other light liquid hydrocarbon mixtures typically encountered in petroleum refining operations, such as blending stocks naphthas, reformates, alkylates, and so forth may also be analyzed; however, statistical data was obtained only with blended spark-ignition engine fuels. The procedure may be applicable to higher and lower concentrations for the individual components; however, the user must verify the accuracy if the procedure is used for components with concentrations outside the specified ranges.

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Active view current version of standard. Other Historical Standards. Work Item s - proposed revisions of this standard. More D Other light liquid hydrocarbon mixtures typically encountered in petroleum refining operations, such as blending stocks naphthas, reformates, alkylates, and so forth may also be analyzed; however, statistical data was obtained only with blended spark-ignition engine fuels. The procedure may be applicable to higher and lower concentrations for the individual components; however, the user must verify the accuracy if the procedure is used for components with concentrations outside the specified ranges.

However, the cooperative study data provided sufficient statistical data for MTBE only. If this test method is utilized to estimate bulk hydrocarbon group-type composition PONA the user of such data should be cautioned that some error will be encountered due to co-elution and a lack of identification of all components present.

Samples containing significant amounts of olefinic or naphthenic for example, virgin naphthas , or both, constituents above n -octane may reflect significant errors in PONA type groupings.

However, some interfering coelution with the olefins above C 7 is possible, particularly if blending components or their higher boiling cuts such as those derived from fluid catalytic cracking FCC are analyzed, and the total olefin content may not be accurate.

Other compounds containing oxygen, sulfur, nitrogen, and so forth, may also be present, and may co-elute with the hydrocarbons. If determination of these specific compounds is required, it is recommended that test methods for these specific materials be used, such as Test Methods D and D for oxygenates, and D for sulfur compounds, or equivalent.

Although benzene, toluene, and several oxygenates are determined, when doubtful as to the analytical results of these components, confirmatory analyses can be obtained by using specific test methods. The values given in parentheses are provided for information purposes only.

It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

Scope 1. Link to Active This link will always route to the current Active version of the standard.

HISTORIA PETROLEO DANIEL YERGIN PDF

PiONA Calibration Standard on Rtx-DHA-100 by ASTM D6729-14

Historical Version s - view previous versions of standard. Work Item s - proposed revisions of this standard. More D Process control and product specification compliance for many individual hydrocarbons may be determined through the use of this test method.

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Author Dr. Sc Ed Connor. Published 17th April Detailed hydrocarbon analysis DHA is a separation technique used by a variety of laboratories involved in the petrochemical industry for analysis and identification of individual components as well as for bulk hydrocarbon characterisation of a particular sample.

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Detailed Hydrocarbon Analysis (DHA) using ASTM Method D6729 and D6729 Appendix x2

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