Standard Guide for Laboratory Subsampling of Media Related to Waste Management Activities

Importancia y uso:

4.1 This guide discusses options for taking a subsample from a sample submitted to a laboratory. If followed, it will minimize the bias and variance of the characteristic of interest of the laboratory sample prior to analysis.

4.2 The guide will describe appropriate instructions to be submitted to the laboratory with the field sample.

4.3 This guide is intended for use in the laboratory to take a representative subsample or specimen of the whole field sample for direct analysis or sample preparation for analysis. It is intended for field personnel, data users, laboratory sample reception personnel, analysts, and managers.

4.4 To obtain a representative subsample, layer analysis, grinding, mixing, and changing the physical state such as digesting, drying, melting, or freezing may be required. This guide considers cone and quartering, riffle splitting, and particle size reduction.

Subcomité:

D34.01.01

Referida por:

D5681-23, E3338-22, D5680-14R22, D6759-24

Volúmen:

11.04

Número ICS:

13.030.01 (Wastes in general)

Palabras clave:

sample preparation; subsampling; waste;