ISO 19735:2023 PDF

Name: ISO 19735:2023 — Corrosion of metals and alloys — Corrosivity of atmospheres — Mapping areas of increased risk of corrosion
SKU: ISO 19735:2023
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Corrosion of metals and alloys — Corrosivity of atmospheres — Mapping areas of increased risk of corrosion

Название (английский):

ISO 19735:2023

Corrosion of metals and alloys — Corrosivity of atmospheres — Mapping areas of increased risk of corrosion

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 10
Дата публикации:: 14 декабря 2023 г.
Издание:: ISO IS 19735 edition 1 version 1
ICS:: 77.060

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Описание (английский):

This document gives guidelines for producing corrosivity maps and maps related to increased risk of corrosion in outdoor open atmospheres, but not sheltered or semi-sheltered positions. The maps are calculated based on environmental data using specific relationships, so-called dose-response functions. Other means of producing corrosivity maps, for example using detailed measurements of corrosion and subsequent interpolation of measured corrosion values, are not within the scope of this document.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 19735:2023 - "Corrosion of metals and alloys - Corrosivity of atmospheres - Mapping areas of increased risk of corrosion" (First edition, 2023) provides guidance for producing corrosivity maps and related risk maps for outdoor, open atmospheres (excluding sheltered or semi‑sheltered positions). The standard requires maps to be calculated from environmental datasets using dose‑response functions (statistical relationships that estimate corrosion loss from environmental parameters). Other mapping approaches based on interpolated corrosion measurements are outside its scope.

Key topics and requirements

Scope limitations

Applies only to outdoor open atmospheres, not sheltered/semi‑sheltered locations.
Maps must be based on environmental input data and dose‑response functions.

Dose‑response functions

For global mapping of carbon steel, zinc, copper and aluminium (categories C1–C5, CX), use the functions specified in ISO 9223; other functions may be used with clear disclosure.
Functions must be derived from statistical analysis of field exposure data (ISO 8565) or explicitly documented if modified.

Environmental data

Use annual averages or longer time spans; clearly indicate the years used.
Data must fall within the parameter ranges used to derive the dose‑response functions; mark any extrapolations.
Transform all input datasets to a common grid system and resolution before applying dose‑response functions.

Presentation

Express uniform corrosion in micrometres (µm); localized corrosion averaged by g/m if needed.
Map corrosivity using a colour scale (lighter = low, darker = high) tied to ISO 9223 categories.

Lifetime and cost mapping

Use time expressions in the dose‑response function or ISO 9224 relationships (D = r_corr · t^b) to map lifetimes and calculate replacement/maintenance cost per year.

Error and uncertainty

Dose‑response estimates carry substantial uncertainty (statistical error ~±50% per ISO 9223 Annex A) plus errors from environmental datasets, grid scale and temporal extrapolation. The standard recommends estimating and reporting these errors.

Practical applications and users

ISO 19735:2023 is useful for:

Corrosion engineers and materials scientists producing regional or national corrosivity atlases

Infrastructure and asset managers assessing geographic corrosion risk

Urban planners and coastal engineers evaluating material selection and maintenance needs

Environmental agencies and policy makers quantifying benefits of air‑quality measures (cost‑saving scenarios)

Researchers modeling climate/pollution impacts on material degradation

Related standards

ISO 9223:2012 - Corrosivity classification and dose‑response functions

ISO 9224:2012 - Guiding values for corrosivity categories (time expressions)

ISO 8565 - Field exposure procedures for deriving dose‑response data

Keywords: ISO 19735:2023, corrosivity maps, dose‑response functions, corrosion mapping, corrosivity of atmospheres, ISO 9223, ISO 9224, environmental data, lifetime mapping, corrosion cost, atmospheric corrosion.

ISO 19735:2023 PDF

Abstract

Похожие стандарты

Overview

Key topics and requirements

Practical applications and users

Related standards

Технические детали

ISO 9223:2012

Corrosion of metals and alloys — Corrosivity of atmospheres — Classification, determination and estimation

ISO 9224:2012

Corrosion of metals and alloys — Corrosivity of atmospheres — Guiding values for the corrosivity categories

SIST EN ISO 9223:2012

Corrosion of metals and alloys - Corrosivity of atmospheres - Classification, determination and estimation (I…

SIST EN ISO 8565:2012

Metals and alloys - Atmospheric corrosion testing - General requirements (ISO 8565:2011)

SIST EN ISO 9224:2012

Corrosion of metals and alloys - Corrosivity of atmospheres - Guiding values for the corrosivity categories (…