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Description of ASTM-D8489 2023ASTM D8489-23Historical Standard: Test Method for Determination of Microplastics Particle and Fiber Size, Distribution, Shape, and Concentration in Waters with High to Low Suspended Solids Using a Dynamic Image Particle Size and Shape AnalyzerASTM D8489Scope 1.1 This test method covers the determination of microplastic particle size distribution, shape characterization, and number concentration (particle counts) in sample extracts containing particles between 5 µm and 100 µm. Light is transmitted through a flow cell containing particles in liquid medium. The particles create shadows as they pass through the field of vision of a camera, producing a multitude of images. The images are then used to measure size, shape, and concentration. 1.2 This test method is used as a complementary technique for microplastic particle and fiber polymer identification methods infrared microscopy and gas chromatography/mass spectroscopy pyrolysis. 1.3 This test method requires that samples are collected according to Practice D8332 and prepared according to Practice D8333 prior to use. 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; dynamic imaging; effluent; environmental; high-turbidity water; identification procedures; influent; low-turbidity water; mass-based; microplastic contamination; microplastic pollution; microplastic pollution measurement; microplastic shape; microplastics; microplastics concentration; microplastics in wastewater; microplastic size; particle size and shape analyzer; proficiency samples; quality assurance; quality control; quantification procedures; wastewater ; ICS Code ICS Number Code 13.060.01 (Water quality in general) DOI: 10.1520/D8489-23 The following editions for this book are also available...
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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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