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ASTM D4952-02(2007)

Historical Reaffirmation

Standard Test Method for Qualitative Analysis for Active Sulfur Species in Fuels and Solvents (Doctor Test)

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1.1 This test method is intended primarily for the detection of mercaptans in motor fuel, kerosine, and similar petroleum products. This method may also provide information on hydrogen sulfide and elemental sulfur that may be present in these sample types.

1.2 The values stated in acceptable SI units are to be regarded as standard.

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.


Sulfur present as mercaptans or as hydrogen sulfide in distillate fuels and solvents can attack many metallic and non-metallic materials in fuel and other distribution systems. A negative result in the doctor test ensures that the concentration of these compounds is insufficient to cause such problems in normal use.

SDO ASTM: ASTM International
Document Number D4952
Publication Date May 1, 2007
Language en - English
Page Count 2
Revision Level 02(2007)
Supercedes
Committee D02.03
Publish Date Document Id Type View
July 1, 2023 D4952-23 Revision
April 15, 2012 D4952-12 Revision
April 15, 2009 D4952-09 Revision
Nov. 10, 2002 D4952-02 Revision
Nov. 10, 1997 D4952-97 Revision
May 1, 2017 D4952-12R17 Reaffirmation
May 1, 2007 D4952-02R07 Reaffirmation