EN ISO 11844-1:2008

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviations
5 Classification of corrosivity
  5.1 General
  5.2 Categories of indoor corrosivity
6 Determination of indoor atmospheric corrosivity
7 Characterization of indoor atmospheres with respect
  to indoor corrosivity
  7.1 General
  7.2 Estimation of indoor corrosivity
Annex A (informative) - Relation between ISO, IEC and
                        ISA classification systems
Annex B (informative) - Outdoor and indoor concentrations of
                        some of the most important pollutants
                        in different types of environments
Annex C (informative) - General characterisation of metal
                        corrosion in indoor atmospheres
Annex D (informative) - Guideline for estimation of indoor
                        corrosivity
Bibliography

ISO11844-1:2006 deals with the classification of low corrosivity of indoor atmospheres.The aim of ISO11844-1:2006 is to characterise indoor atmospheric environments of low corrosivity that can affect metals and metallic coatings during storage, transport, installation or operational use, to set a consistent way of indoor corrosivity classification, and to prescribe procedures for derivation and estimation of indoor corrosivity categories.ISO11844-1:2006 specifies technical metals, whose corrosion attack after a defined exposure period is used for determination of corrosivity categories of indoor atmospheres of low corrosivity.ISO11844-1:2006 defines corrosivity categories of indoor atmospheres according to corrosion attack on standard specimens.ISO11844-1:2006 indicates important parameters of indoor atmospheres that can serve as a basis for an estimation of indoor corrosivity.