High purity water systems RODI, Laboratory systems for ultra pure water

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We understand the importance of maintaining a consistent and known level of purity when working in a hospital, pharmaceutical development lab, BioTech manufacturing and testing facility, or any facility where purity is of the utmost importance. We will work with your lab or facilities director, in-house engineer or contractors every step of the way to ensure you receive the level of purity you need.

Water is an exceptionally aggressive solvent that attacks most of the substances it contacts. More substances dissolve in water than any other solvent. Most of the known elements can be found dissolved in water, some in high concentrations and others only in trace amounts. As water moves through the natural hydrologic cycle, it dissolves substances it contacts. Contaminants include atmospheric gases (oxygen, nitrogen, and carbon dioxide), dissolved minerals and organic substances, and suspended colloidal matter. Water also provides an ideal environment for the growth of bacteria and other microorganisms if the necessary nutrients and conditions for growth exist.

Depending on the type and concentration of contaminants, most natural waters are not suitable for potable use much less for most research and industrial applications. Most all municipalities and other purveyors of potable water provide some level of water treatment to make the water suitable for consumption. The U.S. Environmental Protection Agency has established legally enforceable National Primary Drinking Water Regulations (NPDWR) for public water systems. These regulations are published on the U.S. EPA website (www.epa.gov).

Most high-purity water systems use potable water as a feed water source and provide additional treatment to remove residual contaminants to meet the water quality specifications for the given application. Reagent grade water specifications have been established by such organizations as the College of American Pathologists (CAP), National Committee for Clinical Laboratory Standards (NCCLS), and the American Society for Testing and Materials (ASTM).

The United States Pharmacopoeia (USP) establishes specifications for compendial water used in the manufacturing of drug products. The two major compendial water types are USP purified water and USP water for injection.

The ASTM and Semiconductor Equipment and Materials International (SEMI) have established specifications for electronics grade water used to manufacture microelectronic devices. The Association for the Advancement of Medical Instrumentation (AAMI) has established water quality standards for water used in hemodialysis applications. Many industries have established unique water quality standards specific for their use.