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NSF (an initialism for National Sanitation Foundation) is a public health organization [1] headquartered in Ann Arbor, Michigan [2] that tests and certifies foods, water, and consumer products. [1] It also facilitates the development of standards for these products, [ 1 ] labeling products it has certified to meet these standards with the NSF mark.
Chlorine and chloramine are allowed at a level of up to 4 milligrams per liter (mg/L) or 4 parts per million (ppm) in drinking water. [41] However, federal standards includes antimicrobials and any pesticide products and devices that make antimicrobial claims. Products that make such claims must be registered under the EPA before use and ...
Chlorine in water is more than three times more effective as a disinfectant against Escherichia coli than iodine. [21] Halazone tablets were thus commonly used during World War II by U.S. soldiers for portable water purification, even being included in accessory packs for C-rations until 1945.
Chlorine is a strong oxidant that rapidly kills many harmful micro-organisms. Because chlorine is a toxic gas, there is a danger of a release associated with its use. This problem is avoided by the use of sodium hypochlorite, which is a relatively inexpensive solution used in household bleach that releases free chlorine when dissolved in water ...
Swanson Health Products carries more than 26,000 products, ranging from vitamins and supplements to "eco-friendly" home cleaning products. The company has more than 20 Swanson-branded lines that cover natural health products as well as some over-the-counter drugs and organic foods .
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Two distinct and separate methods are employed in the sanitation of a swimming pool. The filtration system removes organic waste on a daily basis by using the sieve baskets inside the skimmer and circulation pump and the sand unit with a backwash facility for easy removal of organic waste from the water circulation.
A 1966 patent describes the production of solid stable dihydrate NaOCl·2H 2 O by reacting a chloride-free solution of hypochlorous acid HClO (such as prepared from chlorine monoxide ClO and water), with a concentrated solution of sodium hydroxide. In a typical preparation, 255 mL of a solution with 118 g/L HClO is slowly added with stirring to ...