ISO 6615:1993

Petroleum products — Determination of carbon residue — Conradson method

Publication date: 2 sht 1993

General information

Current stage: 90.92 Effective date: 9 jan 2026

Originator: ISO

Owner: ISO/TC 28

Type: International Standard

ICS: 75.080

Gjuha: frëngjisht anglisht

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Statusi: Publikuar

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Scope

The principle of the method specified is placing a weighed test portion in a crucible and subjecting to destructive distillation. The residue undergoes cracking and coking reactions during a fixed period of severe heating. At the end of the specified heat period, the test crucible containing the carbonaceous residue is cooled in a desiccator and weighed. The residue remaining is calculated as a mass percentage of the original test portion. The method may be used to determine amounts of carbon residues in the range of 0,01 % (m/m) to 30,0 % (m/m), left after evaporation and pyrolysis.