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Standard Test Method for Barium in Water, Atomic Absorption Spectrophotometry, Graphite Furnace
Automaticky preložený názov:
Štandardná skúšobná metóda pre Barium vo vode, Atómová absorpčná spektrofotometria, Graphite Furnace
NORMA vydaná dňa 1.9.2012
Označenie normy: ASTM D4382-12
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.9.2012
Kód tovaru: NS-27018
Počet strán: 5
Približná hmotnosť: 15 g (0.03 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Keywords:
atomic absorption, barium, furnace, total recoverable metals, ICS Number Code 13.060.50 (Examination of water for chemical substances)
Significance and Use | ||||||||||||||||||||||||||||||||||||||||
5.1 Barium ranks about sixth in order of abundance in nature; however, it is normally found in only trace quantities in drinking water. Consumption, inhalation, or absorption of 500 to 600 mg is considered fatal to human beings. Lower levels may result in disorders of the heart, blood vessels, and nerves. The drinking water standards set the maximum contaminant level for barium as 2 mg/L3 Lower levels may result in disorders of the heart, blood vessels, and nerves. The drinking water standards set the maximum contaminant level for barium as 2 mg/L. |
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1. Scope | ||||||||||||||||||||||||||||||||||||||||
1.1 This test method covers the determination of dissolved and total recoverable barium in most waters and wastewaters. 1.2 This test method was evaluated in the range from 33.5 to 132 μg/L of barium. The range can be increased or decreased by varying the volume of sample injected or the instrumental settings. High concentrations may be diluted but preferably should be analyzed by direct aspiration atomic absorption spectrophotometry. 1.3 This test method has been used successfully with waste treatment plant effluent water, lake water, filtered tap water, and well water. It is the responsibility of the analyst to determine the suitability of the test method for other matrices. 1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 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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