Sampling Flashcards

1
Q

title 22 exempts what type of samples from needed labels during transportation

A

samples for laboratory testing

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2
Q

what is a grab sample

A

a discrete sample taken at one point in time

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3
Q

what is a composite sample

A

aka: batch sampling

non-discrete - numerous samples collected over various sites and times

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4
Q

which type of sampling should be used for hazardous samples

A

grab sampling

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5
Q

what is judgment sampling

A

choosing a sample location that will be most representative

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6
Q

what is random sampling

A

sampling with no reason. sometimes used at HW dump sites

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7
Q

what is the random numbers table

A

a table to help determine random sampling

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8
Q

in collecting food samples how many should be collected?

A

3

2 for the department and 1 for violater

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9
Q

in collecting hazmat samples how many should be collected?

A

4
2 for department
2 for violator

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10
Q

duplicate samples
split samples
spiked samples
blank sample

A

duplicate - two separate samples taken at same place and same time

split - sample separated into equal portions. often analyzed by different labs or techniques

spiked - known qty of contaminant is added

blank - sample known to be free but handled in same manner as a control

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11
Q

food and biological samples should be analyzed when?

A

as soon as possible, not to exceed 6 hours after cooling

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