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General Environmental Sampling and Testing Concepts
REHS
21
Environmental Studies
Professional
08/30/2013

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Cards

Term
Chain of Custody
pg. 323
Definition
All information pertinent to field activities including sampling must be recorded in various forms: logbooks,
sample tags, photographs, etc. Proper documentation and document control are crucial to enforcement
actions, since the government's case in a formal hearing or criminal prosecution often hinges on evidence
gathered. Each field investigator must keep detailed records of inspections, investigations, photographs
taken, samples and thoroughly review all notes before leaving the site. Comments are to be limited to the
photograph's location because any remarks about its contents could jeopardize its value as legal
evidence.
Term
Sample Integrity/Protocols
Definition
Transportation
Temperatures
Timelines
Term
Sample Integrity/Protocols:
Transportation
Definition
Term
Sample Integrity/Protocols:
Temperatures
Definition
Term
Sample Integrity/Protocols:
Timelines
Definition
Term
Representative Sampling
Definition
Term
Aseptic Technique
Definition
Term
Labeling
pg. 323
Definition
Each sample or evidence must be sealed in a container or bag (preferably plastic) immediately after it is
collected and labeled using waterproof ink. Labels may be filled out prior to collection to minimize
handling of the sample containers. Occasionally, sample containers or bags are marked in the field rather
than applying a sample label or tag during the actual sampling. This avoids possible label contamination
problems and subsequent decontamination difficulties.
Sample labels are written into a sampling log book and transcribed onto the label. The document
controller records the assignment of serial sample tags to the field personnel in his/her log book. Sample
tags must never be discarded. Lost, voided, or damaged tags are immediately noted in the log book to
the person to whom they were assigned. Labels must be firmly affixed to the sample containers. Tags
attached by string are acceptable when gummed labels are not available or applicable. Be sure that the
container is dry enough on the outer container for a gummed labels to be securely attached.
Term
Documentation
Definition
Term
Legal Authority to Collect Samples
Definition
Term
PPE (personal protective equipment) and Safety
Definition
Term
Thermometers
Definition
What it measures:
How to operate:
How to Maintain:
Limits:
Term
Pool Test Kits
Definition
Term
Combustible Gas Meters
Definition
Term
Fat Analyzers
Definition
Term
Hydrometer
Definition
Term
pH test strips, or meter
Definition
Term
Sanitizer Test Strips (chlorine, quaternary ammonium, and iodine)
Definition
Term
Maximum Registering Thermometer or Thermo-labels
Definition
Term
Digital Camera
Definition
Term
Photo Ionization Detector
Definition
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