Chemical oxygen demand is the amount of oxygen needed to oxidize the organic matter present in water. Chemical oxygen demand testing is used to determine the amount of oxidation that will occur and the amount of organic matter in a water sample. Chemical oxygen demand testing is also used to determine the amount of inorganic chemicals in a sample.
GMX, Inc. is a manufacturer and supplier of waterproofing products for the construction market and is a wholly owned subsidiary of Garland Industries, Inc. GMX, which recently expanded its product line through a merger with Dry Dog Barriers, LLC, is the only ISO 9001:2008 certified manufacturer of waterproofing and roofing systems.
Headquarters 3800 E. 91st Street Cleveland
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