| http://www.w3.org/ns/prov#value | - EST Corporation was acquired by Severn Trent Services in 2001.Emergency ScrubbersSevern Trent Services??? EST emergency scrubbers are engineered, tested and proven for use in applications where the potential exists for the accidental release of heavier-than-air hazardous gases such as chlorine, sulfur dioxide and other toxic gases.
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