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Field Methods for Extraction and Analysis of Soluble Salts on Steel and Other Nonporous Substrates

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Presentation Summary:

Coatings applied on surfaces contaminated with soluble salts exceeding a certain concentration exhibit diminished performance. Likewise, self-passivating metals (not intended for coating such as stainless steel, aluminum and copper) can be compromised from elevated concentrations of residual soluble salts in corrosive environments.

Soluble salt testing involves two basic steps:

  1. extraction of salts from the surface into a solution
  2. the analysis of the solution

This webinar is intended to assist the user in selecting specific procedures for extracting and performing qualitative and/or quantitative soluble salts from steel and nonporous surfaces. It will include an overview of field methods for measuring total conductivity (fully automated or multi-step) and specific ions.

Attendees of the webinar will be able to:

  • Define how soluble salts can promote premature corrosion
  • Define different instruments and techniques for measuring soluble salts on a substrate
  • Recognize when to measure conductivity versus ion specific levels of contamination

Sponsors

SSPC: The Society for Protective Coatings
  • Heather Stiner

    Heather Stiner

    Protective Coatings Professional at SSPC, Heather Stiner, PCS, CCI