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 Analyzer

Importancia y uso:

5.1 Many microplastic particles enter the environment, including ambient waters and drinking water supplies, via wastewater sources resulting from both industrial processes and consumer products. The presence of high percentages of organic particles, including cellulose material originating from toilet paper and chitin-based materials originating from insect exoskeletons, makes visual identification and subsequent quantification of microplastic particles in wastewater difficult.

5.2 This test method, associated sampling Practice D8332, and preparation Practice D8333 provide a standardized approach for the preparation of water and, particularly, wastewater samples. The isolation of microplastic particles from interfering contaminants by Practice D8333 enables positive identification and, therefore, quantification of microplastic particles.

5.3 Using this test method, microplastic particles are characterized in terms of size, shape, and quantity, allowing for the enumeration of subsequent particle count for a given volume of sample. The method does not provide qualitative identification of plastic composition.

Subcomité:

D19.06

Volúmen:

11.01

Número ICS:

13.060.01 (Water quality in general)

Palabras clave:

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;