Standard Historical Last Updated: May 15, 2015 Track Document
ASTM E1858-08

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

Standard Test Method for Determining Oxidation Induction Time of Hydrocarbons by Differential Scanning Calorimetry E1858-08 ASTM|E1858-08|en-US Standard Test Method for Determining Oxidation Induction Time of Hydrocarbons by Differential Scanning Calorimetry Standard new BOS Vol. 14.01 Committee E37
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Significance and Use

Oxidative induction time is a relative measure of the degree of oxidative stability of the material evaluated at the isothermal temperature of the test. The presence, quantity or effectiveness of antioxidants may be determined by this method. The OIT values thus obtained may be compared from one hydrocarbon to another or to a reference material to obtain relative oxidative stability information.

Typical uses include the oxidative stability of edible oils and fats (oxidative rancidity), lubricants, greases, and polyolefins.

Scope

1.1 This test method describes the determination of 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 Test Method A A differential scanning calorimeter (DSC) is used at ambient pressure, for example, about 100 kPa of oxygen.

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

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 test method is related to ISO 113576 but is different in technical content. This test method is related to CEC L-85T but includes additional experimental conditions.

1.6 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 5 and Note 13.

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Details
Book of Standards Volume: 14.01
Developed by Subcommittee: E37.01
Pages: 6
DOI: 10.1520/E1858-08