Standard Practice for Preparation of Soil Samples by Hotplate Digestion for Subsequent Lead Analysis

Importancia y uso:

5.1 There is a need to monitor the lead content in and around buildings and related structures in order to determine the potential lead hazard. Hence, effective and efficient methods are required for the preparation of soil samples for determination of their lead content.

5.2 This practice may be used for the digestion of soil samples that are collected during various construction and renovation activities associated with lead abatement. The practice is also suitable for the digestion of soil samples for lead analyses collected from other locations, such as near roads and steel structures.

5.3 This practice is intended to be used to prepare samples that have been collected for hazard assessment purposes.

5.4 This practice is not capable of determining lead bound within matrices, such as silica, that are not soluble in nitric acid.

5.5 This practice includes drying and homogenization steps in order to help assure that reported lead results are representative of the sample and are independent of potential differences in soil moisture levels among different sampling locations or changing weather conditions.

Subcomité:

D22.12

Referida por:

D8568-24, E1775-24, E3203-24A, E1979-21, E1727-24, E2115-22, E1583-25, E0631-15R24, E3193-23

Volúmen:

11.07

Número ICS:

71.040.50 (Physicochemical methods of analysis)

Palabras clave:

digestion; lead; sample preparation; soils;