ACT pH Sensor Verification Protocols, PV12-01
10
7.
Data Recording, Processing and Storage
This section describes methods to be employed during data recording, processing, and
storage to minimize errors and assure high quality analyses in the Performance Verification
Statements.
7.1.
Documentation and Records
A variety of data will be acquired and recorded either electronically or manually by ACT
staff in the current laboratory and planned field components of this Verification. Operational
information and results from the reference method will generally be documented in a
field/laboratory record book and on the data sheet/chain-of-custody forms (see below). An
electronic copy of these raw data will be transferred each week to the ACT Chief Scientist, who
will store it permanently along with the rest of the study data.
The results from the test instruments will also be recorded electronically. Test data will
only be downloaded and analyzed upon completion of the individual laboratory tests or field
deployments. As possible, all original data will be left on the instrument and returned to the
manufacturer. Once collected, one copy of these data will reside at the corresponding ACT test
facility and a second copy will be archived at ACT Headquarters or with the Chief Scientist until
the entire Verification is finished. The table below summarizes the types of data to be recorded
and the process for recording data.
Data to be
Recorded
Responsible
Party
Where Recorded
How Often
Recorded
Purpose of Data
Dates, times of
sampling events
ACT PI at
each test site
Field record
books/data sheets
Each reference
sample
collection and
laboratory analysis
Used to organize/check
test results; manually
incorporate data into
spreadsheets - stored in
study binder
Test parameters
(
site conditions)
ACT PI at
each test site
Field record
books/data sheets
Each reference
sample
collection
Used to define site
characteristics; manually
incorporate data into
spreadsheets - stored in
study binder
Test instrument
calibration data
ACT PI at
each test site
Laboratory record
Book/data sheets
Start/end of test
Document correct
performance of test
instrument
Test instrument
data
-
digital display
-
electronic
output
ACT PI at
each test site
-
Data sheets
-
Instrument data
acquisition system
(
data logger)
After completion of
the 26-day field
deployments
Used as part of test
results; incorporate data
into electronic
spreadsheets - stored in
study binder
Reference
analytical
results
ACT PI at
each test site
Laboratory record
Book/data sheets
At the conclusion of
each analytical
sample batch.
Used to check
test results; manually
incorporate data into
spreadsheets - stored in
study binder
Reference
calibration data
ACT PI at
each test site
Laboratory record
books/data
Whenever zero and
calibration checks
Document correct
performance of
