Standard Guide for Selection of Sampling Equipment for Waste and Contaminated Media Data Collection Activities

Importancia y uso:

5.1 Although many technical papers address topics important to efficient and accurate sampling investigations (DQOs, study design, QA/QC, data assessment; see Guides D4687, D5730, D6009, D6051, and Practice D5283), the selection and use of appropriate sampling equipment is assumed or omitted.

5.2 The choice of sampling equipment can be crucial to the task of collecting a sample appropriate for the intended use.

5.3 When a sample is collected, all sources of potential bias should be considered, not only in the selection and use of the sampling device, but also in the interpretation and use of the data generated. Some major considerations in the selection of sampling equipment for the collection of a sample are listed below:

5.3.1 The ability to access and extract from every relevant location in the target population,

5.3.2 The ability to collect a sufficient mass of sample such that the distribution of particle sizes in the population are represented, and

5.3.3 The ability to collect a sample without the addition or loss of constituents of interest.

5.4 The characteristics discussed in 5.3 are particularly important in investigations when the target population is heterogeneous, such as when particle sizes vary, liquids are present in distinct phases, a gaseous phase exists, or materials from different sources are present in the population. The consideration of these characteristics during the equipment selection process will enable the data user to make appropriate statistical inferences about the target population based on the sampling results.

5.5 If samples are to be collected for the determination of per- and poly-fluorinated alkyl substances (PFAS), all sampling equipment should be made of fluorine-free materials. Other considerations for PFAS sampling may exist but are beyond the scope of this standard.

Subcomité:

D34.01.01

Referida por:

D7831-20, D6169_D6169M-21, D6699-24, D7015_D7015M-18, D4547-20, D6759-24, D5495-21, D6640-21, D5633-21, D7204-23, D7353-21, D6907-22, D8170-20, D6311-98R22

Volúmen:

11.04

Número ICS:

13.030.30 (Special wastes)

Palabras clave:

environmental; liquid; monitoring; sampling; sampling equipment; sediment; soil; waste management; water;