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ISO 17507-2:2025

Natural gas — Calculation of methane number of gaseous fuels for reciprocating internal combustion engines — Part 2: PKI method

Publication date:   Dec 9, 2025

General information

60.60   Standard published   Dec 9, 2025

ISO

ISO/TC 193 Natural gas

International Standard

75.060   Natural gas

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Scope

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.

Life cycle

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PUBLISHED
ISO 17507-2:2025
60.60 Standard published
Dec 9, 2025