Table 3-9. Nist-Srm's Available For Traceability Of H - Teledyne T101 Operation Manual

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Table 3-9. NIST-SRM's Available for Traceability of H

ZERO AIR
44
4
NIST-SRM
2730
2731
1693a
1694a
1661a
Zero air is similar in chemical composition to the earth's atmosphere but without the gas
being measured by the analyzer, in this case H
IZS or external zero air scrubber option, it is capable of creating zero air.
For analyzers without these options, a zero air generator such as the Teledyne ML Model
701 can be used.
Once the appropriate pneumatic connections have been made, check all pneumatic fittings
for leaks using a procedure similar to that defined in Section 9.5.1.
Teledyne ML – T101 Operation Manual
S & SO
2
TYPE
Hydrogen sulfide in N
2
Hydrogen sulfide in N
2
Sulfur dioxide in N
2
Sulfur dioxide in N
2
Sulfur dioxide in N
2
S. If your analyzer is equipped with an
2
Calibration Gases
2
NOMINAL
CONCENTRATION
5000 ppb
20 ppm
50 ppm
100 ppm
500 ppm