Laboratory

What is the proper preservation technique for most samples?

What are the exceptions for sample preservation?

follow chain of custody

How can you improve
quality control
in the lab?

abnormal chlorine levels

What are the steps for analyzing free residual chlorine using amperometric titration method?

chemicals that contribute to alkalinity (ability to neutralize acids) to water

pH scale

acids and bases

read a pH meter

temperature effects on pH

calibrate a turbidimeter

chemicals that contribute hardness to water

abnormal hardness levels

abnormal levels of fluoride

chemicals that contribute taste and odor

abnormal taste and odors

bacteriological analysis methods

presence/absence test method

multiple tube fermentation method

Heterotrophic Plate Count (HPC)

membrane filtration method

bacteriological testing controls

What is the difference between presumptive and confirmed results?

What maximum holding times are IMMEDIATE?

What maximum holding time is
6 hours?

What maximum holding time is 6 months?

What maximum holding times are 14 days?

What material should the
sample container
be made of?

What volume is needed for a sample for
ODOR?

What volume is needed for a sample for
COLOR?

What volume is needed for a sample for
HARDNESS?

What volume is needed for a sample for
pH?

What volume is needed for a sample for
TEMPERATURE?

What volume is needed for a sample for
TURBIDITY?

What volume is needed for a sample for
ALKALINITY?

What volume is needed for a sample for
CHLORINE TOTAL RESIDUAL?

What volume is needed for a sample for
FLUORIDE?

What are some causes of poor
quality control
in the lab?

What are the keys to
proper chemical storage?

What are the keys to safely
moving chemicals?

What are the keys to safely
handling chemicals?

analyze a water sample for free chlorine
(DPD titrimetric method)

analyze a water sample for total chlorine
(DPD titrimetric method)