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ASTM E1858-97

ASTM E1858-97

Standard Test Method for Determining Oxidation Induction Time of Hydrocarbons by Differential Scanning Calirometry

2021-03-02 /Historical
Superseeded by:

1.1 This test method covers the procedure for determining the oxidative properties of hydrocarbons by differential scanning calorimetry or pressure differential scanning calorimetry and is applicable to hydrocarbons that oxidize exothermically in their analyzed form.

1.2 Computer or electronic-based instruments, techniques or data treatment equivalent to this test method may also be used.

Note 1--Since all electronic data treatments are not equivalent, the user shall verify equivalency to this method.

1.3 Test Method A--A differential scanning calorimeter (DSC) is used at ambient pressure, for example, about 100 kPa of oxygen.

1.4 Test Method B-- A pressure DSC (PDSC) is used at high pressure, for example, 3.5 MPa (500 psig) oxygen.

1.5 SI values are the standard.

1.6 This test method is related to ISO 11357-6 but is different in technical content.

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 and health practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in Note 2 and Note 13.

differential scanning calorimetry; hydrocarbons; isothermal temperature; oxidation; oxidation induction time; oxidative stability; pressure differential scanning calorimetry
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