Standard Practice for Ultrasonic Extraction of Paint, Dust, Soil, and Air Samples for Subsequent Determination of Lead

Importancia y uso:

5.1 Ultrasonic extraction using dilute nitric acid is a simpler and easier method for extracting lead from environmental samples than are traditional digestion methods that employ hot plate or microwave digestion with concentrated acids (3), (5), (7), (8). Hence, ultrasonic extraction may be used in lieu of the more rigorous strong acid/high temperature digestion methods (for example, see Ref (3) and Test Methods D6785, D8568, E3193, and E3203), provided that the performance is demonstrated using accepted criteria as delineated in Guide E1775.

5.2 In contrast with hot plate or microwave digestion techniques, ultrasonic extraction is field-portable, which allows for on-site sample analysis.

Subcomité:

D22.12

Referida por:

E2914_E2914M-25, D8568-24, E1728_E1728M-24, E1729-24, D8502-25, E3203-24A, E1727-24, E2115-22, E1605-22, E1583-25, E3193-23

Volúmen:

11.07

Número ICS:

17.140.99 (Other standards related to acoustics), 71.040.50 (Physicochemical methods of analysis)

Palabras clave:

airborne particulate matter; dry paint film; lead; sample preparation; settled dust; soils; ultrasonic extraction;