SEDL / STP / STP1239-EB / STP14912S

Results of ISO CORRAG Program: Processing of One-Year Data in Respect to Corrosivity Classification

Knotkova, D
Senior research scientist and convener of ISO/TC 156/WG 4, and research scientist, National Institute for Protection of Material (SVUOM), Prague,

Boschek, P
Senior lecturer, Charles University, Philosophic Faculty, Prague 1,

Kreislova, K
Senior research scientist and convener of ISO/TC 156/WG 4, and research scientist, National Institute for Protection of Material (SVUOM), Prague,

Pages: 18    Published: Jan 1995

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Abstract

Elaboration and publishing of four International Standards Organization (ISO) standards, 9223 to 9226, covering the classification system and criteria, the prognostic guiding corrosion values, and the methods to be used for atmospheric corrosivity derivation, were a result of an extensive international cooperation. During this standardization procedure, the international testing program, ISOCORRAG, started with the aim to work out a database for statistical verification of the classification methods.

The outcome of this broad common testing, evaluation, and statistical analysis of the data is presented in the ISO technical report elaborated in ISO/TC 156/WG 4, and in this paper.

Broad acceptance of ISO standards, 9223 to 9226, was supported by new agreements between ISO/TC 156/WG 4, ISO/TC 35/SC 14, and CEN/TC 262/WG 3.