ISO 16591:2010 PDF

Scope: WARNING — The use of this International Standard may involve hazardous material, operations and equipment. This International Standard does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this International Standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. This International Standard specifies a method for the determination of the sulfur content by oxidative microcoulometry of petroleum light and middle distillates with a final boiling point not higher than 400 °C. It is applicable to materials with sulfur contents in the range of 1 mg/kg to 100 mg/kg. Products with sulfur contents above 100 mg/kg can be analysed after dilution with a suitable sulfur-free solvent. Products with sulfur contents below 1 mg/kg can also be analysed by a modified technique described in Annex A. The precision quoted only applies to measurements in the 1 mg/kg to 100 mg/kg range. Nitrogen interferes with the analysis at concentrations above 0,1 % (m/m), and chlorine interferes at concentrations above 1,0 % (m/m), but these interferences are overcome by the addition of sodium azide to the cell electrolyte. Bromine and organometallic compounds also interfere with the analysis at concentrations above approximately 500 mg/kg.

ISO 16591:2010 Referenced Document

ISO 12185 Crude petroleum, petroleum products and related products*， 2024-01-01 Update
ISO 3170 Petroleum liquids - Manual sampling
ISO 3171 Petroleum liquids; automatic pipeline sampling
ISO 3675 Crude petroleum and liquid petroleum products — Laboratory determination of density — Hydrometer method — Amendment 1
ISO 3696 Water for analytical laboratory use; Specification and test methods

2010 ISO 16591:2010 Petroleum products - Determination of sulfur content - Oxidative microcoulometry method