ASTM D6919-03
Historical Standard: ASTM D6919-03 Standard Test Method for Determination of Dissolved Alkali and Alkaline Earth Cations and Ammonium in Water and Wastewater by Ion Chromatography
SUPERSEDED (see Active link, below)
ASTM D6919
1. Scope
1.1 This test method is valid for the simultaneous determination of the inorganic alkali and alkaline earth cations, lithium, sodium, potassium, magnesium, and calcium, as well as the ammonium cation in reagent water, drinking water, and wastewaters by suppressed and nonsuppressed ion chromatography.
1.2 The anticipated range of the method is 0.05-200 mg/L. The specific concentration ranges tested for this method for each cation were as follows (measured in mg/L):
Lithium | 0.4-10.0 |
Sodium | 4.0-40.0 |
Ammonium | 0.4-10.0 |
Potassium | 1.2-20.0 |
Magnesium | 2.4-20.0 |
Calcium | 4.0-40.0 |
1.2.1 The upper limits may be extended by appropriate dilution or by the use of a smaller injection volume. In some cases, using a larger injection loop may extend the lower limits.
1.3 It is the user's responsibility to ensure the validity of these test methods for waters of untested matrices.
1.4 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. For hazards statements specific to this test method, see 8.3.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
D1129 Terminology Relating to Water
D1193 Specification for Reagent Water
D2777 Practice for Determination of Precision and Bias of Applicable Test Methods of Committee D19 on Water
D3370 Practices for Sampling Water from Closed Conduits
D3856 Guide for Management Systems in Laboratories Engaged in Analysis of Water
D4210 Practice for Intralaboratory Quality Control Procedures and a Discussion on Reporting Low-Level Data
D5810 Guide for Spiking into Aqueous Samples
D5847 Practice for Writing Quality Control Specifications for Standard Test Methods for Water Analysis
D5905 Practice for the Preparation of Substitute Wastewater
Keywords
alkali and alkaline earth cations; ammonium cation; conductivity detection; ion chromatography; wastewater; wate, Alkaline earths/alkalies; Ammonium cations; Calcium content--water; Cations; Conductivity detectors/detection; Dissolved alkali; Drinking water; Inorganic alkalines; Ion chromatography (IC); Lithium content; Magnesium content--water; Potassium; Reagent water; Sodium content--water; Wastewater testing/treatment; Water analysis;
ICS Code
ICS Number Code 71.040.50 (Physicochemical methods of analysis)
DOI: 10.1520/D6919-03
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