The Corrosion Toolbox contains three tools and three corrosion maps useful for evaluating environmental severity and compiling environmental data at selected locations. The data is used as the starting point for determining effective corrosion prevention strategies for facilities systems and components.
INTERNATIONAL STANDARDS ORGANIZATION (ISO) CORROSIVITY CATEGORY ESTIMATION TOOL (ICCET)
Estimates ISO Corrosivity Categories for metals and alloys.
WOOD DECAY HAZARD INDEX (SCHEFFER INDEX)
Calculates a wood decay hazard index at selected locations.
AIR POLLUTION AND WEATHER DATA
Pulls air pollution related data from Environmental Protection Agency (EPA) databases and NOAA Weather Data from the ISD-Lite Database.
Scheffer Index and ISO Corrosivity Categories—Displays an interactive map overlay of the Wood Decay Hazard Index (Scheffer-Index) and ISO Corrosivity Categories (ISO 9223) based on steel coupon outdoor exposure. The wood hazard index is identified by black contour/index lines (intervals of 10) and gray shading representing the three index ranges (Low/Moderate/High). Note that the Wood hazard index is only available for the continental United States. Overlayed are colored circles representing the ISO Corrosivity Categories (C1/C2/C3/C4/C5/CX). The display shows a general correlation between the severity of atmospheric corrosivity between wood and metals. The tool is also useful in comparing the map values to the values obtained in the two corresponding tools in the Corrosion Toolbox.
ISO Corrosivity Categories—Displays a zoomable world map of the ISO Corrosivity Categories (C1/C2/C3/C4/C5/CX).
ISO Corrosivity Categories (Monthly Animation)—Displays a month-by-month animation of a heat map of ISO Corrosivity Categories (C1/C2/C3/C4/C5/CX) in the continental United States. This animation is based on 2007-2016 ICCET data. The month can be found in the lower right-hand corner. In general, the animation reveals that atmospheric climate factors increase the corrosion severity during May through September.