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ISO/NP 27236-2

Corrosion of metals and alloys — Evaluation method for corrosion from the appearance of rust on weathering steel structures — Part 2: Inspection method

General information

10.00     Oct 29, 2026

ISO

ISO/TC 156

International Standard

Scope

This document specifies an inspection method for classifying the appearance of rust formed on unpainted weathering steel structures into five levels. It covers visual observation, lighting and photographic recording, a supplementary tape peel test, judgment by evaluators, and the minimum contents of the inspection report.

Life cycle

NOW

PROJECT
ISO/NP 27236-2
10.00 Proposal for new project registered
Oct 29, 2026