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Standard Test Method for Determination of Calcium, Magnesium, Potassium, and Sodium in Atmospheric Wet Deposition by Flame Atomic Absorption Spectrophotometry
Automaticky přeložený název:
Standardní zkušební metoda pro stanovení vápníku, hořčíku, draslíku, sodíku a atmosférického mokré depozice plamennou atomovou absorpční spektrofotometrií
NORMA vydána dne 1.10.2013
Označení normy: ASTM D5086-01(2013)
Poznámka: NEPLATNÁ
Datum vydání normy: 1.10.2013
Kód zboží: NS-29781
Počet stran: 7
Přibližná hmotnost: 21 g (0.05 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Keywords:
atmospheric wet deposition, atomic absorption, calcium, magnesium, potassium, precipitation, sodium, ICS Number Code 07.060 (Geology. Meteorology. Hydrology), 71.040.40 (Chemical analysis)
Significance and Use | ||||||||||||||||||||||||
5.1 This test method may be used for the determination of calcium, magnesium, potassium, and sodium in atmospheric wet deposition samples. 5.2 Emphasis is placed on the easily contaminated quality of atmospheric wet deposition samples due to the low concentration levels of dissolved metals commonly present. 5.3 Annex A1 represents cumulative frequency percentile concentration plots of calcium, magnesium, potassium, and sodium obtained from analyses of over five thousand wet deposition samples. These data may be used as an aid in the selection of appropriate calibration standard concentrations. 1.1 This test method is applicable to the determination of calcium, magnesium, potassium, and sodium in atmospheric wet deposition (rain, snow, sleet, and hail) by flame atomic absorption spectrophotometry (FAAS). (1)2 1.2 The concentration ranges are listed below. The range tested was confirmed using the interlaboratory collaborative test (see Table 1 for a statistical summary of the collaborative test). 1.3 The method detection limit (MDL) is based on single operator precision (2) and may be higher or lower for other operators and laboratories. Many workers have found that this test method is reliable at lower levels than were tested, but the precision and bias data presented are insufficient to justify their use at lower levels. 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.
Standard Terminology Relating to
Plastics Standard Terminology Relating to Water
(Includes all amendments and changes 2/14/2024). Standard Terminology Relating to Sampling
and Analysis of Atmospheres (Includes all amendments and changes
9/7/2020). Standard Practice for Determination of
Precision and Bias of Applicable Test Methods of Committee D19 on
Water Standard Practice for Handling of High
Purity Water Samples Standard Practice for Measuring Elements
in Water by Flame Atomic Absorption Spectrophotometry Standard Practice for Preparation of
Materials Used for the Collection and Preservation of Atmospheric
Wet Deposition Standard Terminology Relating to
Molecular Spectroscopy Standard Specification for Laboratory
Glass Volumetric Apparatus IEEE/ASTM?SI-10 Standard for Use of the International
System of Units (SI): The Modern Metric System Standard Practice for Describing and
Measuring Performance of Ultraviolet and Visible
Spectrophotometers Standard Specification for Reagent
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