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ASTM D4007-22
Standard Test Method for Water and Sediment in Crude Oil by the Centrifuge Method (Laboratory Procedure)
NORMA vydaná dňa 1.10.2022
Informácie o norme:
Označenie normy: ASTM D4007-22
Dátum vydania normy: 1.10.2022
Kód tovaru: NS-1097208
Počet strán: 13
Približná hmotnosť: 39 g (0.09 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Kategórie - podobné normy:
Anotácia textu normy ASTM D4007-22 :
Keywords:
centrifuge, centrifuge tube, crude oil, laboratory procedure, sampling, sediment and water, solvent,, ICS Number Code 75.040 (Crude petroleum)
Doplňujúce informácie
| Significance and Use | ||||||||||||||||||||
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5.1?The water and sediment content of crude oil is significant because it can cause corrosion of equipment and problems in processing. A determination of water and sediment content is required to measure accurately net volumes of actual oil in sales, taxation, exchanges, and custody transfers. It is not anticipated that this test method, which is written with a dedicated laboratory facility in mind, is likely to be used in field test rooms or sample rooms due to safety concerns for proper ventilation and handling. 5.2?This test method may not be suitable for crude oils that contain alcohols that are soluble in water. In cases where the impact on the results may be significant, the user is advised to consider using another test method, such as Test Method D4928 (API MPMS Chapter 10.9). |
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| 1. Scope | ||||||||||||||||||||
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1.1?This test method describes the laboratory determination of water and sediment in crude oils by means of the centrifuge procedure. This centrifuge method for determining water and sediment in crude oils is not entirely satisfactory. The amount of water detected is almost always lower than the actual water content. When a highly accurate value is required, the revised procedures for water by distillation, Test Method D4006 (API MPMS Chapter 10.2) (Note 1), and sediment by extraction, Test Method D473 (API MPMS Chapter 10.1), shall be used. Note 1:?Test Method D4006 (API MPMS Chapter 10.2) has been determined to
be the preferred and most accurate method for the determination of
water.
1.2?The values stated in SI units are to be regarded as standard. 1.2.1?ExceptionThe values given in parentheses are for information only. 1.3?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. 1.4?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. |
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| 2. Referenced Documents | ||||||||||||||||||||
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