![]() ISO Standards are compliant with DoD policy mandating use of Non-Government Standards pursuant to DoDI 4120.24 Defense Standardization Program and MIL-STD-3007G Standard Practice Unified Facilities Criteria, Facilities Criteria And Unified Facilities Guide Specifications.The method integrates well with available environmental data available from NOAA.ISO Corrosivity atmospheric exposure data obtained from the ISO International Atmospheric Exposure Program correlates well with DoD one-year corrosion rate data at DoD locations around the world.The ISO Corrosivity Method and Categories was selected for a variety of reasons, including: The ISO Corrosivity Classification method is contained in ISO 9223 and defines six corrosivity categories (C1 - very low, C2 - low, C3 - medium, C4 - high, C5 - very high, CX– extreme- offshore environments) based on one-year corrosion mass loss or penetration of steel, zinc, copper, and aluminum coupons. Model 2: greater than one mile but less than or equal to 6 miles.Each model is based on a separate salinity value, a measure of relative distance to saltwater: The ICCET uses three corrosion estimation models that were developed to estimate corrosion mass loss and ISO corrosivity categories. ( Note: For DoD Installations, Environmental Severity Classification (ESC) defined in UFC 1-200-01 DoD Building Code takes precedence over this tool). ![]() It uses a Google Maps interface and National Oceanic and Atmospheric Administration (NOAA) data (ISD-Lite) environmental data to provide an estimated ISO Corrosivity Category for a chosen location. The ICCET estimates general atmospheric corrosion severity at a selected location for metals and alloys.
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