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  • ASTM
    D4929-24 Standard Test Method for Determination of Organic Chloride Content in Crude Oil
    Edition: 2024
    $144.00
    Unlimited Users per year

Description of ASTM-D4929 2024

ASTM D4929-24

Active Standard: Standard Test Method for Determination of Organic Chloride Content in Crude Oil




ASTM D4929

Scope

1.1 The procedures in this test method cover the determination of organic chloride (above 1 μg/g organically-bound chlorine) in crude oils, using either distillation and sodium biphenyl reduction, distillation and microcoulometry, or distillation and X-ray fluorescence (XRF) spectrometry.

1.2 The procedures in this test method involve the distillation of crude oil test specimens to obtain a naphtha fraction prior to chloride determination. The chloride content of the naphtha fraction of the whole crude oil can thereby be obtained. See Section 6 regarding potential interferences.

1.3 Procedure A covers the determination of organic chloride in the washed naphtha fraction of crude oil by sodium biphenyl reduction followed by potentiometric titration.

1.4 Procedure B covers the determination of organic chloride in the washed naphtha fraction of crude oil by oxidative combustion followed by microcoulometric titration.

1.5 Procedure C covers the determination of organic chloride in the washed naphtha fraction of crude oil by X-ray fluorescence spectrometry.

1.6 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.6.1 The preferred concentration units are micrograms of chloride per gram of sample, though milligrams of chloride per kilogram of sample is commonly used for Procedure C.

1.7 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.8 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.


Keywords

chlorine; coulometry; crude oil; EDXRF; Energy Dispersive X-ray Fluorescence; MEDXRF; Monochromatic Energy Dispersive X-ray Fluorescence; Monochromatic Wavelength Dispersive X-ray Fluorescence; Monochromatic X-ray; MWDXRF; naphtha; organic chloride; organo-chlorine; polarization; sodium biphenyl; spectrometry; X ray; X-ray Fluorescence; XRF;


ICS Code

ICS Number Code 75.040 (Crude petroleum)


DOI: 10.1520/D4929-24



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