ASTM D525-12a
Standard Test Method for Oxidation Stability of Gasoline (Induction Period Method)

Standard No.

ASTM D525-12a

Release Date

2012

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM D525-12a(2019)

Latest

ASTM D525-12a(2019)

Scope

The induction period may be used as an indication of the tendency of motor gasoline to form gum in storage. It should be recognized, however, that its correlation with the formation of gum in storage may vary markedly under different storage conditions and with different gasolines.

1.1 This test method covers the determination of the stability of gasoline in finished form only, under accelerated oxidation conditions. (WarningThis test method is not intended for determining the stability of gasoline components, particularly those with a high percentage of low boiling unsaturated compounds, as these may cause explosive conditions within the apparatus. However, because of the unknown nature of certain samples, the pressure vessel assembly shall include a safety burst-disc in order to safeguard the operator.)

Note 18212;For measurement of oxidation stability of gasoline by measurement of potential gum, refer to Test Method D873, or IP Test Method 138.

Note 28212;The precision data were developed with gasolines derived from hydrocarbon sources only without oxygenates.

1.2 The accepted SI unit of pressure is the kilo Pascal (kPa), and of temperature is °C.

1.3 WARNINGMercury has been designated by many regulatory agencies as a hazardous material that can cause central nervous system, kidney and liver damage. Mercury, or its vapor, may be hazardous to health and corrosive to materials. Caution should be taken when handling mercury and mercury containing products. See the applicable product Material Safety Data Sheet (MSDS) for details and EPA’s websitehttp://www.epa.gov/mercury/faq.htmfor additional information. Users should be aware that selling mercury and/or mercury containing products into your state or country may be prohibited by law.

1.4 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.

ASTM D525-12a Referenced Document

• ASTM D4057 Standard Practice for Manual Sampling of Petroleum and Petroleum Products
• ASTM D873 Standard Test Method for Oxidation Stability of Aviation Fuels (Potential Residue Method)
• ASTM E1 Standard Specification for ASTM Thermometers

ASTM D525-12a history

• 2019 ASTM D525-12a(2019) Standard Test Method for Oxidation Stability of Gasoline (Induction Period Method)
• 2012 ASTM D525-12a Standard Test Method for Oxidation Stability of Gasoline (Induction Period Method)
• 2012 ASTM D525-12 Standard Test Method for Oxidation Stability of Gasoline (Induction Period Method)
• 2005 ASTM D525-05 Standard Test Method for Oxidation Stability of Gasoline (Induction Period Method)
• 2001 ASTM D525-01 Standard Test Method for Oxidation Stability of Gasoline (Induction Period Method)
• 2000 ASTM D525-00 Standard Test Method for Oxidation Stability of Gasoline (Induction Period Method)