INTERNATIONAL STANDARD ISO 9223:2012(E) © ISO 2012 – All rights reserved 1 Corrosion of metals and alloys — Corrosivity of atmospheres — Classification, determination and estimation . 1. Scope . This International Standard establishes a classification system for the corrosivity of atmospheric environments. It

This second edition cancels and replaces the first edition (ISO 9223:1992), which has been technically revised.

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.

ISO 9223 was prepared by Technical Committee ISO/TC 156, Corrosion of metals and alloys. This second edition cancels and replaces the first edition (ISO 9223:1992), which has been technically revised. Metals, alloys and metallic coatings can suffer atmospheric corrosion when their surfaces are wetted.

Dec 2, 2021 · Otherwise, for a general indication of corrosion rates you can refer to Table C.1 of ISO standard 9223:2012 and Table 1 of ISO standard 14713-1:2017. A summary of the ISO category classification descriptors and associated corrosion rates are provided in Table 2.

Feb 1, 2012 · Corrosion of metals and alloys — Corrosivity of atmospheres — Classification, determination and estimation. This International Standard establishes a classification system for the corrosivity of atmospheric environments. It — defines corrosivity categories for the atmospheric environments by the...

Feb 1, 2012 · This second edition cancels and replaces the first edition (ISO 9223:1992), which has been technically revised. This is a preview of "ISO 9223:2012". Click here to purchase the full version from the ANSI store.

ISO 9223. This standard classifies the corrosivity of an atmosphere based on measurements of time of wetness, and pollution categories (sulfur dioxide, airborne chlorides). The standard was not intended to be used in extreme service atmospheres such as those within chemical or metallurgical processing facilities or where there is direct contact ...

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.