Teledyne T100, Instruction Manual, Page: 199 / 404

Teledyne ML
- T100 UV Fluorescence SO2 Analyzer EPA Protocol Calibration
199
Table 7-2: Activity Matrix for Calibration Procedure
EQUIPMENT &
SUPPLIES
ACCEPTANCE LIMITS
FREQUENCY AND METHOD
OF MEASUREMENT
ACTION IF
REQUIREMENTS ARE NOT
MET
Calibration gases NIST traceable Assayed against an NIST-
SRM semi-annually, Sec.
2.0.7, (Q.A. Handbook) Working gas standard is
unstable, and/or
measurement method is out
of control; take corrective
action such as obtaining new
calibration gas.
Dilution gas Zero air, free of
contaminants Refer to Section 2.9.2 (Q.A.
Manual) Return to supplier or take
appropriate action with
generation system
Multi-point calibration Use calibration
procedure in Subsec. 2.2
(Q.A. Handbook); also
Federal Register
Perform at least once every
quarter or anytime a level
span check indicates a
discrepancy, or after
maintenance which may
affect the calibration; Subsec
2.5 (Q.A. Manual) Repeat the calibration
7.1.2. DATA RECORDING DEVICE
Either a strip chart recorder, data acquisition system, digital data acquisition system
should be used to record the data from the Mode; T100 RS-232 port or analog outputs. If
analog readings are being used, the response of that system should be checked against a
NIST referenced voltage source or meter. Data recording device should be capable of bi-
polar operation so that negative readings can be recorded.
7.1.3. RECOMMENDED STANDARDS FOR ESTABLISHING
TRACEABILITY
To assure data of desired quality, two considerations are essential: (1) the measurement
process must be in statistical control at the time of the measurement and (2) the
systematic errors, when combined with the random variation in the measurement
process, must result in a suitably small uncertainty.
Evidence of good quality data includes documentation of the quality control checks and
the independent audits of the measurement process by recording data on specific forms
or on a quality control chart and by using materials, instruments, and measurement
procedures that can be traced to appropriate standards of reference. To establish
traceability, data must be obtained routinely by repeat measurements of standard
reference samples (primary, secondary, and/or working standards). More specifically,
working calibration standards must be traceable to standards of higher accuracy, such as
those listed in Table 6-1.
Cylinders of working gas traceable to NIST-SRM's (called EPA Protocol Calibration
Gas) are also commercially available (from sources such as Scott Specialty Gases, etc.).
7.1.4. EPA CALIBRATION USING PERMEATION TUBES
Teledyne ML does not recommend the use of permeation tubes as a source of span gas
for EPA protocol calibration operations.