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EPA Protocol Calibration Teledyne API – T101 Operation Manual
188
time. Therefore, it is necessary to dynamically check the calibration relationship on a
predetermined schedule. Zero and span checks must be used to document that the data
remains within control limits. These checks are also used in data reduction and validation.
Table 7-3 summarizes the initial quality assurance activities for calibrating equipment.
Table 7-2 is a matrix for the actual dynamic calibration procedure.
Calibrations should be carried out at the field monitoring site. The Analyzer should be in
operation for at least several hours (preferably overnight) before calibration so that it is
fully warmed up and its operation has stabilized. During the calibration, the T101 should
be in the CAL mode, and therefore sample the test atmosphere through all components
used during normal ambient sampling and through as much of the ambient air inlet
system as is practicable. If the Instrument will be used on more than one range (i.e. IND
or AUTO ranges), it should be calibrated separately on each applicable range. Calibration
documentation should be maintained with each analyzer and also in a central backup file.
Table 7-1. Activity Matrix for Calibration Equipment & Supplies
EQUIPMENT/SUPPLIES ACCEPTANCE LIMITS
FREQUENCY AND
METHOD OF
MEASUREMENT
ACTION IF REQUIREMENTS
ARE NOT MET
Recorder Compatible with output
signal of analyzer; min.
chart width of 150 mm (6
in) is recommended
Check upon receipt Return equipment to
supplier
Sample Line And Manifold Constructed of PTFE or
glass
Check upon receipt Return equipment to
supplier
Calibration Equipment Meets guidelines of
reference 1 and Section
2.3.2 (Q.A. Handbook)
See Section 2.3.9
(Q.A. Handbook)
Return equipment/ supplies
to supplier or take
corrective action
Working Standard SO
2
Cylinder Gas Or SO
2
Permeation Tube
Traceable to NIST-SRM
meets limits in traceability
protocol for accuracy and
stability (Section 2.0.7,
Q.A. Handbook)
Analyzed against
NIST-SRM; see
protocol in Section
2.0.7, Q.A.
Handbook
Obtain new working
standard and check for
traceability
Zero Air Clean dry ambient air, free
of contaminants that cause
detectable response with
the SO
2
analyzer.
See Section 2.9.2
(Q.A. Handbook)
Obtain air from another
source or regenerate.
Record Form Develop standard forms N/A Revise forms as
appropriate
Audit Equipment Must not be the same as
used for calibration
System must be
checked out against
known standards
Locate problem and correct
or return to supplier
07266B DCN6485