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Standard ČSN EN ISO 9223 1.9.2012 preview

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ČSN EN ISO 9223 (038203)

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



STANDARD published on 1.9.2012


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The information about the standard:

Designation standards: ČSN EN ISO 9223
Classification mark: 038203
Catalog number: 91332
Publication date standards: 1.9.2012
SKU: NS-170117
The number of pages: 20
Approximate weight : 60 g (0.13 lbs)
Country: Czech technical standard
Category: Technical standards ČSN

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Corrosion of metals

Annotation of standard text ČSN EN ISO 9223 (038203):

Norma stanoví systém klasifikace korozní agresivity atmosférických prostředí. Definuje stupně korozní agresivity pro atmosférická prostředí pomocí korozní rychlosti standardních vzorků po prvním roce expozice, uvádí rovnice znehodnocení pro normativní odhad stupně korozní agresivity na základě výpočtu korozního úbytku standardních kovů po prvním roce expozice a umožňuje informativní odhad stupně korozní agresivity na základě znalosti místního prostředí. Norma specifikuje základní činitele atmosférické koroze kovů a slitin, což jsou teplotně-vlhkostní komplex a znečištění oxidem siřičitým a vzdušnou salinitou. Korozní účinek jiných znečištění (ozónu, oxidů dusíku, pevných částic) může ovlivnit korozní agresivitu a vyhodnocený roční korozní úbytek, tyto činitele však nejsou považovány za rozhodující pro posuzování korozní agresivity podle této normy. Norma necharakterizuje korozní agresivitu specifických provozních atmosfér, např. atmosfér v chemickém nebo hutním průmyslu. Klasifikované stupně korozní agresivity a klasifikované intervaly znečištění lze použít přímo pro technickou a ekonomickou analýzu korozních škod a pro racionální volbu opatření na ochranu proti korozi

Preview of the standard ČSN EN ISO 9223 (038203)

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