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Standard Test Method for Determination of Asphaltenes (Heptane Insolubles) in Crude Petroleum and Petroleum Products
STANDARD published on 15.4.2012
Designation standards: ASTM D6560-12
Note: WITHDRAWN
Publication date standards: 15.4.2012
SKU: NS-35640
The number of pages: 6
Approximate weight : 18 g (0.04 lbs)
Country: American technical standard
Category: Technical standards ASTM
Keywords:
asphaltenes, bitumen, crude petroleum, diesel fuel, gas oil, heptane insoluble residues, lubricating oil, residual fuel oils, Asphaltenes, Crude petroleum products, Heptane miscibility, ICS Number Code 75.040 (Crude petroleum), 75.080 (Petroleum products in general)
Significance and Use | ||||||||||||
Asphaltenes are the organic molecules of highest molecular mass and carbon-hydrogen ratio normally occurring in crude petroleum and petroleum products containing residual material. They may give problems during storage and handling if the suspension of asphaltene molecules is disturbed through excess stress or incompatibility. They are also the last molecules in a product to combust completely, and thus may be one indicator of black smoke propensity. Their composition normally includes a disproportionately high quantity of the sulfur, nitrogen, and metals present in the crude petroleum or petroleum product. |
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1. Scope | ||||||||||||
1.1 This test method covers a procedure for the determination of the heptane insoluble asphaltene content of gas oil, diesel fuel, residual fuel oils, lubricating oil, bitumen, and crude petroleum that has been topped to an oil temperature of 260°C (see A1.2.1.1). 1.2 The precision is applicable to values between 0.50 and 30.0 % m/m. Values outside this range may still be valid but may not give the same precision values. 1.3 Oils containing additives may give erroneous results. 1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.5 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 and health practices and determine the applicability of regulatory limitations prior to use. |
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2. Referenced Documents | ||||||||||||
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15.6.2013
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15.6.2013
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1.6.2012
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1.5.2013
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1.12.2012
Historical
15.6.2014
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