A growing problem
MIC was first discovered in the early 1990s. Over these past 20 years, experts still don’t know a lot about this type of corrosion. In fact, studies by FM Global reflect the growth of MIC since it’s discovery. A study from 1988-1997 found MIC was present in 40 percent of systems that failed due to corrosion. When that study was replicated from in 2002, that percentage jumped to 60 percent.
According to the independent rating bureau, WSRB, “factors such as the introduction of thin-walled (Schedule 5 and Schedule 10) piping in the 1980s, changes in the chemicals used by water treatment facilities in the 1980s and 1990s, the proliferation of electroplating, an increased awareness of MIC and the rising number of buildings with sprinkler systems all contribute to the sharp increase in reported cases of MIC.”
Despite the continuation of research into this topic, there are several ways to detect and treat cases of MIC.