Ultrapure Water refers to ASTM (American Society for Testing and Materials) D1193 which states water quality with a resistivity of 18.2 MΩ-cm at 25oC degrees.
Typically all Ultrapure Water/Type 1 systems have a TOC less than 5ppb with a low bacterial, nuclease and endotoxin content. Most Ultrapure Water systems have UV photooxidation as an additional technology. This quality of water is suitable for the most demanding applications.
Some of the uses of Type 1 (18.2MΩ) Ultrapure Water produced from this technology are:
In the Triple Red Water Technology range, there are a number of systems which provide Ultrapure water and the choice depends whether you require any other water grades in your laboratory.
Typical UV disinfection systems involve the flow of water through a vessel containing a UV lamp. As the water passes through, microorganisms are exposed to intense ultraviolet light energy which causes damage to genetic molecules (i.e. nucleic acids: DNA or RNA) needed for reproductive functions. This damage prevents the microorganism from multiplying or replicating in a human or animal host. Because the microorganism cannot multiply, no infection can occur. Disinfection of water is achieved when UV light causes microbial inactivation.
Ultrafiltration is used to remove pyrogens (bacterial endotoxins) and nucleases. Ultrafilters use size exclusion to remove particles and macromolecules. Typically, an ultrafilter is deployed at the end of the process to ensure near total removal of such impurities.