Sampling

Question 1

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

Answer 1

samples for laboratory testing

Question 2

what is a grab sample

Answer 2

a discrete sample taken at one point in time

Question 3

what is a composite sample

Answer 3

aka: batch sampling

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

Question 4

which type of sampling should be used for hazardous samples

Answer 4

grab sampling

Question 5

what is judgment sampling

Answer 5

choosing a sample location that will be most representative

Question 6

what is random sampling

Answer 6

sampling with no reason. sometimes used at HW dump sites

Question 7

what is the random numbers table

Answer 7

a table to help determine random sampling

Question 8

in collecting food samples how many should be collected?

Answer 8

3

2 for the department and 1 for violater

Question 9

in collecting hazmat samples how many should be collected?

Answer 9

4
2 for department
2 for violator

Question 10

duplicate samples
split samples
spiked samples
blank sample

Answer 10

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

Question 11

food and biological samples should be analyzed when?

Answer 11

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