D3961-98 – Standard Test Method Technical Guide

ASTM D3961-98 defines the standard method for the determination of trace quantities of sulfur in liquid aromatic hydrocarbons, their derivatives, and related chemicals. As a highly sensitive technique, oxidative microcoulometry enables accurate quantification of total sulfur to ensure product quality, process control, and adherence to regulatory specifications.

🧪 Scope and Applicability

This test method is applicable to samples where the total sulfur concentration falls within the range of 0.5 to 100 mg/kg. The scope specifically covers aromatic hydrocarbons and their derivatives. To determine conformance with this test method, practice dictates that observed or calculated values must be rounded off to the nearest unit in the last right-hand digit of the specification limit, in