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ISO 9818:1991

Passenger cars — Engine cooling systems — Test methods and marking of pressure caps

Publication date:   Dec 5, 1991

General information

90.93   Standard confirmed   Oct 15, 2026

ISO

ISO/TC 22/SC 34 Propulsion, powertrain and powertrain fluids

International Standard

43.060.30   Cooling systems. Lubricating systems

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Scope

Specifies test methods and a marking system for pressure caps. Annex A forms an integral part of this standard.

Life cycle

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PUBLISHED
ISO 9818:1991
90.93 Standard confirmed
Oct 15, 2026