DD ISO/TR 15235:2001

Foreword
Introduction
1 Scope
2 Conclusions
3 Terms and definitions
4 Sequential collection of data
5 Protocol for assessing surface contamination
6 Recommended test protocol to investigate the
  influence of salt contamination on coating service
  life
7 Other standards of interest
Annex A (informative) - Summary of data from bibliographic
                        references
Annex B (informative) - Data from a paint manufacturer
Annex C (informative) - Coating-system manufacturers'
                        recommendations regarding toleration
                        of salt contamination on a steel
                        surface before application of paints
                        or related products
Annex D (informative) - Data supplied by Japan
Annex E (informative) - Assessment of soluble chloride and/or
                        sulfate contamination on a steel surface -
                        Surface inspection protocol
Annex F (informative) - Recommended test procedure when
                        investigating the influence of soluble
                        chloride and/or sulfate contamination on
                        coating service life
Bibliography

Provides information on the effect of water-soluble chloride and sulfate contamination levels on steel surfaces, before the application of paint or related products to surfaces prepared in accordance with standard mechanical or blast-cleaning surface preparation methods. It is concerned only with measured levels of salt contamination based upon either laboratory or field testing. It does not define specific levels of cleanliness or methods of salt removal.

This Technical Report provides information on the effect of water-soluble chloride and sulfate contamination levels on steel surfaces, before the application of paint or related products to surfaces prepared in accordance with standard mechanical or blast-cleaning surface preparation methods.

NOTE The tolerance for water-soluble salt contamination may be different for different paint types.

This information may be used when evaluating the adequacy of surface preparation prior to painting.

This document is concerned only with measured levels of salt contamination based upon either laboratory or field testing. The levels of soluble chloride and sulfate discussed in this document are to be compared using soluble surface densities of the species as determined after extraction in accordance with ISO8502-6 (the Bresle method), or other methods giving equivalent results. Total soluble-salt contamination may be determined by conductometric testing, but such testing will not determine the nature and concentration of the specific salts present, e.g. whether chloride or sulfate is present, or its concentration.

This document does not define specific levels of cleanliness or methods of salt removal.