International Standard
ISO 17507-2:2025
Natural gas — Calculation of methane number of gaseous fuels for reciprocating internal combustion engines — Part 2: PKI method
Reference number
ISO 17507-2:2025
Edition 1
2025-12
© ISO 2026
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Published (Edition 1, 2025)

ISO 17507-2:2025

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Abstract

This document specifies the PKI method for the calculation of the methane number of a gaseous fuel, using the composition of the gas as sole input for the calculation.

This document applies to natural gas (and biomethane) and their admixtures with hydrogen.

General information

  • Status
     : Published
    Publication date
     : 2025-12
    Stage
    : International Standard published [60.60]
  • Edition
     : 1
    Number of pages
     : 23
  • Technical Committee :
    ISO/TC 193
    ICS :
    75.060 
  • RSS updates

Life cycle

Sustainable Development Goals

This standard contributes to the following Sustainable Development Goals

7
Affordable and Clean Energy
9
Industry, Innovation and Infrastructure
12
Responsible Consumption and Production
13
Climate Action

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