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Description of ASTM-D8333 2020ASTM D8333-20Active Standard: Standard Practice for Preparation of Water Samples with High, Medium, or Low Suspended Solids for Identification and Quantification of Microplastic Particles and Fibers Using Raman Spectroscopy, IR Spectroscopy, or Pyrolysis-GC/MSASTM D8333Scope 1.1 This practice provides for the sample preparation of collected water samples with high, medium, or low suspended solids to determine the presence, count, polymer type, and physical characteristics of microplastic particles and fibers. It has been designed for the preparation of samples collected from drinking water, surface waters, wastewater influent and effluent (secondary and tertiary), and marine waters using collection practice (Practice D8332). This practice is not limited to these particular water matrices; however, the applicability of this practice to other aqueous matrices must be demonstrated. 1.2 This practice consists of a wet peroxide oxidation followed by progressive enzymatic digestion to the extent necessary to remove interfering organic constituents such as cellulose, lipids and chitin that are typically found in abundance in water matrices of samples with high to medium suspended solids such as wastewater influent. For water samples with low suspended solids, such as but not limited to drinking water and tertiary treated wastewater, the oxidation and digestion steps may not be necessary. 1.3 Water samples prepared using this practice are suitable for analysis utilizing either Pyrolysis-GC/MS methods for qualitative identification and mass quantitation, or IR spectroscopy or Raman spectroscopy for identifying the quantity (number count) and composition (polymer type) of microplastic particles. If desired, microplastic particle size and shape may be ascertained with appropriate instruments such as a scanning electron microscope (SEM) and microscopy techniques. 1.4 Units—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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. Keywords all water matrices; analytical quality assurance; calibration samples; collection procedures; count-based; drinking water; high turbidity waters; low turbidity waters; mass-based; microplastic pollution measurement; microplastics; proficiency samples; quality assurance; quality control; quantification procedures; reference samples; sample preparation; sampling procedures; suspended solids; wastewater; ICS Code ICS Number Code 13.060.01 (Water quality in general) DOI: 10.1520/D8333-20 This book also exists in the following packages...Subscription InformationMADCAD.com ASTM Standards subscriptions are annual and access is unlimited concurrency based (number of people that can access the subscription at any given time) from single office location. For pricing on multiple office location ASTM Standards Subscriptions, please contact us at info@madcad.com or +1 800.798.9296.
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About ASTMASTM International, formerly known as the American Society for Testing and Materials (ASTM), is a globally recognized leader in the development and delivery of international voluntary consensus standards. Today, some 12,000 ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. ASTM’s leadership in international standards development is driven by the contributions of its members: more than 30,000 of the world’s top technical experts and business professionals representing 150 countries. Working in an open and transparent process and using ASTM’s advanced electronic infrastructure, ASTM members deliver the test methods, specifications, guides, and practices that support industries and governments worldwide. |
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