ISO 10370-2014 PDF

Full title and description

ISO 10370:2014 — Petroleum products — Determination of carbon residue — Micro method. This International Standard specifies a micro-scale laboratory method for measuring the carbon residue left after controlled evaporation and pyrolysis of petroleum products; the measured value is used as an approximation of the tendency of a product to form carbonaceous deposits under thermal degradation.

Abstract

ISO 10370:2014 defines a micro method to determine carbon residue in petroleum products in the approximate range 0.10 % (m/m) to 30.0 % (m/m). The standard notes equivalence with the Conradson carbon residue test (ISO 6615) over an overlapping range, explains applicability to distillate materials (with a procedure for preparing a 10 % (V/V) distillation residue where necessary), and warns that ash-forming constituents and non-volatile additives contribute to the reported carbon residue. It also notes that organic nitrates can lead to abnormally high results.

General information

• Status: Published (International Standard; confirmed/active in ISO catalogue).
• Publication date: November 2014 (Edition 2, 2014). Corrected version issued December 2022 (editorial/corrigenda entry shown on ISO catalogue).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 75.080 — Petroleum products; prepared by ISO/TC 28 (Petroleum and related products, lubricants and fuels).
• Edition / version: Edition 2 (2014).
• Number of pages: 10 (ISO document pagination).

(National/adopted variants such as BS EN ISO 10370 exist and may show different pagination due to national forewords or amalgamated texts.)

Scope

This standard specifies a micro-method procedure to determine the carbon residue of petroleum products after evaporation and pyrolysis under defined conditions. It applies to samples that yield residues within the method’s measurement range and includes preparatory steps for distillate materials that otherwise give residues below the lower reporting limit. Results are intended for comparative assessment of carbon-forming tendency within classes of products, with caution advised when interpreting values influenced by additives or inorganic/ash-forming constituents.

Key topics and requirements

• Definition of scope, applicable sample types and concentration range (nominally 0.10 % to 30.0 % m/m).
• Required apparatus and reagents for the micro pyrolysis test (sample holder, heating conditions, controlled evaporation and pyrolysis steps).
• Detailed step-by-step procedure: sample preparation, controlled heating, final residue recovery and weighing, and calculation of carbon residue percentage.
• Notes on equivalence/comparison with the Conradson carbon residue method (ISO 6615) and handling of low-residue distillates (10 % V/V pre‑distillation procedure).
• Statements on interferences and interpretation: ash-forming constituents, non-volatile additives and organic nitrates can affect results.
• References and normative cross-references to related ISO methods and test procedures used in petroleum analysis.

Typical use and users

Laboratories performing quality control, specification testing and research on petroleum fuels and lubricants commonly use ISO 10370:2014. Typical users include refinery QC labs, fuel testing laboratories, petrochemical and lubricant manufacturers, standards organizations, and research institutions assessing carbon-depositing tendencies of products or additives. National bodies and conformity assessment organizations may adopt the standard as a referenced test method.

Related standards

ISO 10370:2014 cross-references and is related to other petroleum testing standards, notably ISO 6615 (Conradson carbon residue test), ISO 6245 (ash in petroleum products) and ISO 13759 (detection of organic nitrates in fuels) as items influencing interpretation or method equivalence. National adoptions (for example BS EN ISO 10370) provide harmonized regional texts.

Keywords

carbon residue; micro method; petroleum products; Conradson equivalence; pyrolysis; residue determination; fuel testing; ISO 10370.

FAQ

Q: What is this standard?

A: ISO 10370:2014 is an ISO International Standard that specifies a micro-scale laboratory method for determining the carbon residue of petroleum products after evaporation and pyrolysis.

Q: What does it cover?

A: It covers apparatus, reagents, sample preparation, the micro pyrolysis procedure, calculation of carbon residue (expressed as % m/m), method applicability and limitations, and notes on comparability with the Conradson carbon residue test.

Q: Who typically uses it?

A: The standard is used by refinery and fuel testing laboratories, lubricant manufacturers, research laboratories, standards bodies and any organization that needs to assess or compare the carbon-forming tendency of petroleum products.

Q: Is it current or superseded?

A: ISO 10370:2014 is the second edition published in 2014 and is listed as published and active in the ISO catalogue; ISO’s entry also shows a corrected version (December 2022) and the document is shown as confirmed/maintained in the ISO lifecycle. Users should check national catalogues or ISO for any amendments or later reviews before final use.

Q: Is it part of a series?

A: It is part of the body of ISO petroleum product test methods managed under ISO/TC 28 and relates to other carbon-residue and petroleum analysis standards (for example ISO 6615). Some national bodies publish harmonized adoptions (e.g., BS EN ISO 10370).

Q: What are the key keywords?

A: Carbon residue, micro method, petroleum products, pyrolysis, Conradson, fuel testing, ISO 10370.