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ISO 6743-4:2015

Lubricants, industrial oils and related products (class L) — Classification — Part 4: Family H (Hydraulic systems) ISO 6743-4:2015

Publication date:   Jul 20, 2015

General information

90.93   Standard confirmed   May 29, 2026

ISO

ISO/TC 28/SC 4 Classifications and specifications

International Standard

75.120   Hydraulic fluids

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Published

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Scope

ISO 6743-4:2015 establishes the detailed classification of fluids of Family H (Hydraulic systems) which belong to class L (Lubricants, industrial oils, and related products). It is intended to be read in conjunction with ISO 6743‑99. This classification system does not include automotive brake fluids or aircraft hydraulic fluids.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 6743-4:1999

NOW

PUBLISHED
ISO 6743-4:2015
90.93 Standard confirmed
May 29, 2026




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