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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 ...
Product evaluation to ANSI/NSF 14 and ANSI/NSF 61 standards and the ability to have that compliance added to your company's certificate of listings; An ISO 9001-2008 Program that can be customized to fit your company's unique needs––whether your company is small or large (IAPMO R&T is the only registrar dedicated to serving the plumbing ...
In 1996 NSF-funded research established beyond doubt that the chemistry of the atmosphere above Antarctica was grossly abnormal and that levels of key chlorine compounds are greatly elevated. During two months of intense work, NSF researchers learned most of what is known about the ozone hole.
This is an accepted version of this page This is the latest accepted revision, reviewed on 29 September 2024. Not to be confused with sodium chloride. Sodium chlorite The sodium cation Space-filling model of the chlorite anion Names IUPAC name Sodium chlorite Other names Chlorous acid, sodium salt Textone Identifiers CAS Number 7758-19-2 Y 49658-21-1 (trihydrate) Y 3D model (JSmol) Interactive ...
These were sold under trade names followed by a four-digit number. In general, the first two digits refer to the product series as designated by Monsanto (e.g. 1200 or 1100 series); the second two numbers indicate the percentage of chlorine by mass in the mixture. Thus, Aroclor 1260 is a 1200 series product and contains 60% chlorine by mass.
Any other atoms attached to the carbons are assumed to be chlorine atoms. For example, R-22 has one carbon atom, one hydrogen atom (2−1 = 1), two fluorine atoms, and one chlorine atom (4−2−1 = 1), so it is chlorodifluoromethane , while R-134 has two carbon atoms (2−1 = 1), two hydrogen atoms (3−1 = 2), four fluorine atoms, and no ...
There are five types: Type A1 (formerly A), Type A2 (formerly A/B3), Type B1, Type B2 and Type C1. Each type's requirements are defined by NSF International Standard 49, [3]: 31 which in 2002 reclassified A/B3 cabinets (classified under the latter type if connected to an exhaust duct) as Type A2, [5] and added the Type C1 in the 2016 standard. [8]
A dechlorinator is a chemical additive that removes chlorine or chloramine from water. Where tap water is chlorinated, it should be dechlorinated before use in an aquarium, since chlorine can harm aquatic life in the same way it kills micro-organisms. Chlorine will kill fish [20] and cause damage to an aquarium's biological filter. [21]
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