ASTM D5012 - 01(2013)

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

    Active Standard ASTM D5012 | Developed by Subcommittee: D22.03

    Book of Standards Volume: 11.07

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    Significance and Use

    4.1 Some chemical constituents of AWD are not stable and must be preserved before chemical analysis. Without sample preservation, it is possible that analytes can be lost through decomposition or sorption to the storage bottles.

    4.2 Contamination of AWD samples can occur during both sample preservation and sample storage. Proper selection and cleaning of sampling containers are required to reduce the possibility of contamination of AWD samples.

    4.3 The natural sponge and talc-free plastic gloves used in the following procedures should be recognized as potential sources of contamination. Individual experience should be used to select products that minimize contamination.

    1. Scope

    1.1 This guide presents recommendations for the cleaning of plastic or glass materials used for collection of atmospheric wet deposition (AWD). This guide also presents recommendations for the preservation of samples collected for chemical analysis.

    1.2 The materials used to collect AWD for the analysis of its inorganic constituents and trace elements should be plastic. High density polyethylene (HDPE) is most widely used and is acceptable for most samples including samples for the determination of the anions of acetic, citric, and formic acids. Borosilicate glass is a collection alternative for the determination of the anions from acetic, citric, and formic acid; it is recommended for samples for the determination of other organic compounds.

    1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

    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.

    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

    D883 Terminology Relating to Plastics

    D1125 Test Methods for Electrical Conductivity and Resistivity of Water

    D1129 Terminology Relating to Water

    D1193 Specification for Reagent Water

    D1356 Terminology Relating to Sampling and Analysis of Atmospheres

    D1695 Terminology of Cellulose and Cellulose Derivatives

    D2914 Test Methods for Sulfur Dioxide Content of the Atmosphere (West-Gaeke Method)

    D4453 Practice for Handling of High Purity Water Samples

    ICS Code

    ICS Number Code 07.060 (Geology. Meteorology. Hydrology)

    UNSPSC Code

    UNSPSC Code 13102017(High Density Polyethylene HDPE); 30171700(Glass products)

    Referencing This Standard
    Link Here
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    DOI: 10.1520/D5012-01R13

    Citation Format

    ASTM D5012-01(2013), Standard Guide for Preparation of Materials Used for the Collection and Preservation of Atmospheric Wet Deposition, ASTM International, West Conshohocken, PA, 2013,

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