4.1 In many petroleum refining processes, low levels of sulfur in feed stocks may poison expensive catalysts. This test method can be used to monitor the amount of sulfur in such petroleum fractions.

4.2 This test method may also be used as a quality-control tool for sulfur determination in finished products.

1.1 This test method covers the determination of sulfur in petroleum products in the range from 0.02 mg/kg to 10.00 mg/kg.

1.2 This test method may be extended to higher concentration by dilution.

1.3 This test method is applicable to liquids whose boiling points are between 30 °C and 371 °C (86 °F and 700 °F). Materials that can be analyzed include naphtha, kerosine, alcohol, steam condensate, various distillates, jet fuel, benzene, and toluene.

1.4 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.

1.4.1 Certain specifications for the recorder (see 5.5) are excepted.

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.