ISO 5163:2014

Petroleum products — Determination of knock characteristics of motor and aviation fuels — Motor method

Publication date:   May 21, 2014

General information

90.93 Standard confirmed   Sep 25, 2020

ISO

ISO/TC 28 Petroleum and related products, fuels and lubricants from natural or synthetic sources

International Standard

75.160.20   Liquid fuels

Buying

Published

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Scope

ISO 5163:2014 establishes the rating of liquid spark-ignition engine fuel in terms of an arbitrary scale of octane numbers using a standard single-cylinder, four-stroke cycle, variable-compression ratio, carburetted, CFR engine operated at constant speed. Motor octane number (MON) provides a measure of the knock characteristics of motor fuels in automotive engines under severe conditions of operation. The motor octane number provides a measure of the knock characteristics of aviation fuels in aviation piston engines, by using an equation to correlate to aviation-method octane number or performance number (lean-mixture aviation rating).
ISO 5163:2014 is applicable for the entire scale range from 0 MON to 120 MON, but the working range is 40 MON to 120 MON. Typical motor fuel testing is in the range of 80 MON to 90 MON. Typical aviation fuel testing is in the range of 98 MON to 102 MON.

Life cycle

PREVIOUSLY

Revises
ISO 5163:2005

Revises
ISO 5163:2005/Cor 1:2008

NOW

PUBLISHED
ISO 5163:2014
90.93 Standard confirmed
Sep 25, 2020