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Standard Test Methods for Bromate, Bromide, Chlorate, and Chlorite in Drinking Water by Suppressed Ion Chromatography
Automatische name übersetzung:
Standard-Prüfverfahren für Bromat, Bromid, Chlorat und Chlorit im Trinkwasser von suppressierter Ionenchromatographie
NORM herausgegeben am 1.3.2012
Bezeichnung normen: ASTM D6581-12
Anmerkung: UNGÜLTIG
Ausgabedatum normen: 1.3.2012
SKU: NS-35722
Zahl der Seiten: 23
Gewicht ca.: 69 g (0.15 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
Keywords:
bottled and finished drinking water, bromate, bromide, chemical suppression, chlorate, chlorite, ion chromatography, raw water, sample preservation, ICS Number Code 13.060.50 (Examination of water for chemical substances)
Significance and Use | ||||||||||||||||||||||||||||||||
4.1 The oxyhalides chlorite, chlorate, and bromate are inorganic disinfection by-products (DBPs) of considerable health risk concern worldwide. The occurrence of chlorite and chlorate is associated with the use of chlorine dioxide, as well as hypochlorite solutions used for drinking water disinfection. The occurrence of bromate is associated with the use of ozone for disinfection, wherein naturally occurring bromide is oxidized to bromate. Bromide is a naturally occurring precursor to the formation of bromate. |
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1. Scope | ||||||||||||||||||||||||||||||||
1.1 These multi-test methods cover the determination of the oxyhalides—chlorite, bromate, and chlorate, and bromide, in raw water, finished drinking water and bottled (non-carbonated) water by chemically and electrolytically suppressed ion chromatography. The ranges tested using these test methods for each analyte were as follows:
1.1.1 The upper limits may be extended by appropriate sample dilution or by the use of a smaller injection volume. Other ions of interest, such as fluoride, chloride, nitrite, nitrate, phosphate, and sulfate may also be determined using these test methods. However, analysis of these ions is not the object of these test methods. 1.2 It is the user’s responsibility to ensure the validity of these test methods for waters of untested matrices. 1.3 These test methods are technically equivalent with Part B of U.S. EPA Method 300.1,1.4 The values stated in either SI or inch-pound units are to be regarded as the standard. The values given in parentheses are for information only. 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. |
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2. Referenced Documents | ||||||||||||||||||||||||||||||||
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