Wir benötigen Ihre Einwilligung zur Verwendung der einzelnen Daten, damit Sie unter anderem Informationen zu Ihren Interessen einsehen können. Klicken Sie auf "OK", um Ihre Zustimmung zu erteilen.
Standard Test Method for Low-Molecular Weight Halogenated Hydrocarbons in Water
Automatische name übersetzung:
Standard Test Method for niedermolekularen Halogenkohlenwasserstoffe im Wasser
NORM herausgegeben am 1.5.2011
Bezeichnung normen: ASTM D3973-85(2011)
Anmerkung: UNGÜLTIG
Ausgabedatum normen: 1.5.2011
SKU: NS-25563
Zahl der Seiten: 5
Gewicht ca.: 15 g (0.03 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
Keywords:
drinking water, electrolytic conductivity detector, electron capture detector, gas chromatography, halogenated hydrocarbons, Hydrocarbon content, Low-molecular weight halogenated hydrocarbons, Organic compounds--water, Gas chromatography (GC)--water, ICS Number Code 13.060.50 (Examination of water for chemical substances)
Significance and Use | ||||||||
The incidental conversion of organic material to trihalomethanes and other volatile organohalides during chlorination of water is a possible health hazard and is the object of much research. This test method can be used as a rapid, simple means for determining many volatile organohalides in raw and processed water. |
||||||||
1. Scope | ||||||||
1.1 This test method covers the analysis of drinking water. It is also applicable to many environmental and waste waters when adequate validation is included. 1.2 This test method covers the determination of halomethanes, haloethanes, and some related extractable organohalides amenable to gas chromatographic measurement. The applicable concentration range for trihalomethanes is from 1 to 200 μg/L. Detection limits depend on the compound, matrix, and on the characteristics of the gas chromatographic system. 1.3 For compounds not specifically included in the precision and bias section the analyst should validate the test method by collecting precision and bias data on actual samples. 1.4 Confirmation of component identities is obtained by observing retention times using gas chromatographic columns of different polarities. When concentrations are sufficiently high (>50 μg/L) confirmation with halogen specific detectors or gas chromatography/mass spectrometry (GC/MS) may be used. Confirmation of purgeable compounds at levels down to 1 μg/L can be obtained using Test Method D3871 with GC/MS detection. 1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.6 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. Specific precautionary statements are given in Section 8. |
||||||||
2. Referenced Documents | ||||||||
|
Historisch
1.9.2012
Historisch
1.10.2009
Historisch
15.5.2009
Historisch
1.9.2011
Historisch
1.1.2013
Historisch
15.6.2012
Wollen Sie sich sicher sein, dass Sie nur die gültigen technischen Normen verwenden?
Wir bieten Ihnen eine Lösung, die Ihnen eine Monatsübersicht über die Aktualität der von Ihnen angewandten Normen sicher stellt.
Brauchen Sie mehr Informationen? Sehen Sie sich diese Seite an.
Letzte Aktualisierung: 2024-12-23 (Zahl der Positionen: 2 217 157)
© Copyright 2024 NORMSERVIS s.r.o.