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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.
As these products originally contained para-dichlorobenzene (pDCB) they may also be called para blocks. Besides disinfecting, the purpose of these materials is to deodorize restroom urinals. [ 1 ] They are placed above the urinal drain, often in the confines of a small plastic device called a urinal screen that prevents loss down the drain when ...
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 ...
Elemental chlorine free (ECF) is a technique that uses chlorine dioxide for the bleaching of wood pulp. It does not use elemental chlorine gas during the bleaching process and prevents the formation of dioxins and dioxin-like compounds , carcinogens .
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.
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Amway Corp. (short for "American Way") is an American multi-level marketing (MLM) company that sells health, beauty, and home care products. [2] [3] [4] The company was founded in 1959 by Jay Van Andel and Richard DeVos and is based in Ada, Michigan. [5]
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.