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3.4 Sampling
3.4.1 Conditions of sampling gas
(1)
(2)
(3)
3
(4) If a large amount of highly corrosive gas such as Cl
(5)
hot gas directly into the analyzer.
3.4.2
.
3.4.3 Preparation for standard gas
Zero gas
Concentration beyond 100% is inapplicable.
3.4.4 Purging of instrument inside
(1) A combustible gas component is contained in sample gas.
(2) Corrosive gas is contained in the atmospheric air at the installation site.
(3) The same gas as the sample gas component is contained in the atmospheric air at the installa-
tion site.
or N
.
2
If dust or mist is contained in purging gas, it should be eliminated completely in advance.
3.4.5 Pressure at sampling gas outlet
Pressure at the sampling gas outlet should be set to atmospheric pressure or equivalent.
INZ-TN6ZAF-E
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, F
2
2
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9
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