ASTM D6328 - 12

    Standard Guide for Quality Assurance Protocols for Chemical Analysis of Atmospheric Wet Deposition

    Active Standard ASTM D6328 | Developed by Subcommittee: D22.03

    Book of Standards Volume: 11.07


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    Abstract

    This guide describes quality assurance protocols for the determination of the anions and cations in atmospheric wet deposition which include the minimum recommended requirements for the preparation of calibration standards and suggested procedures for validating laboratory measurement results. Specimens to be used in all tests shall consist of reagent grade chemicals, water, and standard solutions. Common techniques for chemical analysis include automated colorimetry; ion chromatography, flame atomic absorption spectrophotometry, electrometry, and inductively coupled plasma spectrometry. Analytical precision and bias determinations shall be done for evaluation of the reference materials. Samples for reanalysis may be selected from the evaluation of control charts and the calculation of ion and conductivity percent differences.

    This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

    1. Scope

    1.1 This guide describes quality assurance (QA) protocols for the determination of the anions and cations in Atmospheric Wet Deposition (AWD) shown in Table 1.

    TABLE 1 Common Techniques of Analysis for Atmospheric Wet Deposition Samples

    Automated Colorimetry

    Ion Chromatography

    NH4+

    Cl, NO3, SO42–, NH4+, Ca2+, Mg2+, Na+, K+

    Flame Atomic Absorption Spectrophotometry

    Electrometric

    Na+, K+, Ca2+ , Mg2+

    pH, specific conductance

    Inductively Coupled Plasma Spectrometry

     

    Na+, K+, Ca2+, Mg2+

     


    1.2 Included in this guide are minimum recommended requirements for the preparation of calibration standards and suggested procedures for validating laboratory measurement results.

    1.3 This guide describes minimum requirements for the frequency of analysis of quality assurance samples and recommends procedures for the evaluation of quality assurance data.

    1.4 The guide's recommendations are based upon expected anion and cation concentrations in AWD (1) 2 and Appendix X1.

    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.


    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

    D596 Guide for Reporting Results of Analysis of Water

    D1193 Specification for Reagent Water

    D1356 Terminology Relating to Sampling and Analysis of Atmospheres

    D3856 Guide for Management Systems in Laboratories Engaged in Analysis of Water

    D5012 Guide for Preparation of Materials Used for the Collection and Preservation of Atmospheric Wet Deposition

    D5015 Test Method for pH of Atmospheric Wet Deposition Samples by Electrometric Determination

    D5085 Test Method for Determination of Chloride, Nitrate, and Sulfate in Atmospheric Wet Deposition by Chemically Suppressed Ion Chromatography

    D5086 Test Method for Determination of Calcium, Magnesium, Potassium, and Sodium in Atmospheric Wet Deposition by Flame Atomic Absorption Spectrophotometry

    D5111 Guide for Choosing Locations and Sampling Methods to Monitor Atmospheric Deposition at Non-Urban Locations

    E200 Practice for Preparation, Standardization, and Storage of Standard and Reagent Solutions for Chemical Analysis


    ICS Code

    ICS Number Code 03.120.10 (Quality management and quality assurance); 13.040.20 (Ambient atmospheres); 71.040.40 (Chemical analysis)

    UNSPSC Code

    UNSPSC Code 81111819(Quality assurance services); 77100000(Environmental management)


    DOI: 10.1520/D6328-12

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