BLOCK 10: ENVIRONMENTAL HEALTH II - Unit 5: Soil Sample Preservation (complete)

Question 1

What is the purpose of preserving the sample?

Answer 1

To keep the sample in the condition needed for analysis between the time the sample is collected and the time the sample is analyzed.

Question 2

To minimize the potential for volatilization or biodegradation between sampling and analysis, keep samples as cool as possible without freezing (typically _____ degrees C). Preferably pack samples with ice in plastic bags before shipment.

Answer 2

4 degrees C

Question 3

What dictates what preservation method used?

Answer 3

The nature of the sample

Question 4

As a rule of thumb, always contact your _______________ to find out the preservative required for your samples.

Answer 4

CERTIFIED LAB

USAFSAM
USAPHC

Question 5

In general, the _______________ the time that elapses between collection of the sample and its analysis, the more reliable the analytical results will be.

Answer 5

SHORTER

Question 6

What container would be used to capture organochlorine pesticide contaminants?

Answer 6

GLASS container with TEFLON LINED CAP

Question 7

The shipment specific PPQ Form 550 Black/White label should be attached to the _______________ of each package being imported under the “Permit to Receive Soil” with clear tape.

Answer 7

EXTERIOR/OUTSIDE

Question 8

This record documents sample custody transfer from the sampler, often through several persons, to the analyst in the laboratory.

Answer 8

CHAIN OF CUSTODY RECORD

Question 9

The ____________________ has the necessary supplies and expertise to comply with Federal/postal regulations and laws.

Answer 9

TRAFFIC MANAGEMENT OFFICE (TMO)

Question 10

In most deployed settings, samples will not be sent to USAFSAM, but instead to _______________

Answer 10

US ARMY PUBLIC HEALTH COMMAND