ABNT Catálogo
ABNT ISO TS 22002-5:2020
Norma Técnica
Código
ISO 9223:2012  
Data de Publicação : 27/01/2012
Título : Corrosion of metals and alloys -- Corrosivity of atmospheres -- Classification, determination and estimation
Título Idioma Sec. : Corrosion des métaux et alliages -- Corrosivité des atmosphères -- Classification, détermination et estimation
Comitê : ISO/TC 156 Corrosion of metals and alloys
Páginas : 15
Status : Em Vigor  
Idioma : Inglês
Organismo : ISO - International Organization for Standardization
Preço (R$) : 704,00
Objetivo : ISO 9223:2012 establishes a classification system for the corrosivity of atmospheric environments. It defines corrosivity categories for the atmospheric environments by the first-year corrosion rate of standard specimens, gives dose-response functions for normative estimation of the corrosivity category based on the calculated first-year corrosion loss of standard metals, and makes possible an informative estimation of the corrosivity category based on knowledge of the local environmental situation. ISO 9223:2012 specifies the key factors in the atmospheric corrosion of metals and alloys. These are the temperature-humidity complex, pollution by sulfur dioxide and airborne salinity. The temperature-humidity complex can be evaluated in terms of time of wetness. Corrosion effects of other pollutants (ozone, nitrogen oxides, particulates) are not considered decisive in the assessment of corrosivity according to ISO 9223:2012. ISO 9223:2012 does not characterize the corrosivity of specific service atmospheres, e.g. atmospheres in chemical or metallurgical industries.
Normas Necessárias para a aplicação da ISO 9223:2012
ICS/CIN
77.060 - Corrosão de metais
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