Ultraviolet absorption measurement method for waste gas sulfur dioxide of stationary pollution source
A technology of fixing pollution source and ultraviolet absorption method, which is applied in the field of ultraviolet absorption method flue gas monitoring equipment
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[0041] 1 Reagents and materials
[0042] 1.1 Sulfur dioxide calibration gas
[0043] Certified ambient standard gas, the uncertainty is not greater than 2% or the uncertainty that can be achieved at present, or the calibration gas used to calibrate the instrument is obtained by diluting the standard gas with nitrogen. The concentration of the calibration gas for checking indication errors and system deviations is not greater than 60% C.S. (calibration span).
[0044] 1.2 Nitrogen
[0045] The purity should be greater than 99.99%.
[0046] 1.3 Sampling tube
[0047] Tube materials such as hard glass, PTFE, stainless steel, titanium alloy, etc. can be used.
[0048] 1.4 Sample transfer line
[0049] Tube materials such as polytetrafluoroethylene can be used.
[0050] 1.5 particulate filter
[0051] It can be made of corundum, borax, quartz wool, alkali-free glass fiber and other materials that do not absorb sulfur dioxide.
[0052] 2 Instruments and equipment
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