DANSK DSF/ISO/FDIS 22858 PDF

This standard for making atmospheric corrosion measurements encompasses two-electrode electrochemical sensors that are used to measure: 1) electrochemical impedance, 2) current with a zero resistance ammeter, and 3) current with precision resistors. The measurements can be used to quantify free corrosion, galvanic corrosion, conductance of thin film solutions, and barrier properties of coatings. The electrochemical sensors are useful for comparative testing of materials in atmospheric corrosion tests including accelerated laboratory, outdoor exposure sites, and service environments. The electrochemical sensors can be used to quantify and track corrosion current and estimate total corrosion. The protective properties of coatings on metals and alloys can be continuously measured over long periods using the electrochemical sensors. Industries for which this standard is relevant include the coating manufacturers and users, transportation, chemical process and energy, and infrastructure.