Abstract
The title method is being used as a standard method of continuous determination of nitric oxide and nitrogen dioxide in Japan. The collected air passes through a dust filter. Then it enters an NO/sub 2/ impinger, where the NO/sub 2/ reacts with the Saltzman solution. After the removal of NO/sub 2/, the air is oxidized to convert NO to NO/sub 2/, which is collected in an NO impinger. The concentrations of NO and NO/sub 2/ are recorded separately, and the average concentrations are recorded at the end of each measuring period. The specifications of this instrument are as follows: the range of determination, 0 to 0.5 and 0 to 1.0 ppM for NO and NO/sub 2/; reproducibility, within 2% of the full scale; the measuring period, 1 hr.; rate of flow of atmospheric air, 300 ml/min for 0 to 0.5 ppM range and 150 ml/min for 0 to 1.0 ppM range; the volume of the reaction solution, 29 ml; the colorimeter, 1 light source, 2 paths photometric colorimeter; the measuring wavelength, 545 nm; the Saltzman coefficient, 0.72; filter, gas fiber filter paper, 55 in. diameter (GA-20); power source, AC 100 V, 50 and 60 Hz; and output DC 0 to
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Citation Formats
Ito, H, and Nakazawa, A.
Accuracy and maintenance of Saltzman type nox meter (for environmental pollution).
Japan: N. p.,
1974.
Web.
Ito, H, & Nakazawa, A.
Accuracy and maintenance of Saltzman type nox meter (for environmental pollution).
Japan.
Ito, H, and Nakazawa, A.
1974.
"Accuracy and maintenance of Saltzman type nox meter (for environmental pollution)."
Japan.
@misc{etde_5215519,
title = {Accuracy and maintenance of Saltzman type nox meter (for environmental pollution)}
author = {Ito, H, and Nakazawa, A}
abstractNote = {The title method is being used as a standard method of continuous determination of nitric oxide and nitrogen dioxide in Japan. The collected air passes through a dust filter. Then it enters an NO/sub 2/ impinger, where the NO/sub 2/ reacts with the Saltzman solution. After the removal of NO/sub 2/, the air is oxidized to convert NO to NO/sub 2/, which is collected in an NO impinger. The concentrations of NO and NO/sub 2/ are recorded separately, and the average concentrations are recorded at the end of each measuring period. The specifications of this instrument are as follows: the range of determination, 0 to 0.5 and 0 to 1.0 ppM for NO and NO/sub 2/; reproducibility, within 2% of the full scale; the measuring period, 1 hr.; rate of flow of atmospheric air, 300 ml/min for 0 to 0.5 ppM range and 150 ml/min for 0 to 1.0 ppM range; the volume of the reaction solution, 29 ml; the colorimeter, 1 light source, 2 paths photometric colorimeter; the measuring wavelength, 545 nm; the Saltzman coefficient, 0.72; filter, gas fiber filter paper, 55 in. diameter (GA-20); power source, AC 100 V, 50 and 60 Hz; and output DC 0 to 1 V linearized. Replacements of parts are necessary for photoelectric tubes, filters, and reagents at various intervals of time. Maintenance points were tabulated.}
journal = []
volume = {23:5}
journal type = {AC}
place = {Japan}
year = {1974}
month = {May}
}
title = {Accuracy and maintenance of Saltzman type nox meter (for environmental pollution)}
author = {Ito, H, and Nakazawa, A}
abstractNote = {The title method is being used as a standard method of continuous determination of nitric oxide and nitrogen dioxide in Japan. The collected air passes through a dust filter. Then it enters an NO/sub 2/ impinger, where the NO/sub 2/ reacts with the Saltzman solution. After the removal of NO/sub 2/, the air is oxidized to convert NO to NO/sub 2/, which is collected in an NO impinger. The concentrations of NO and NO/sub 2/ are recorded separately, and the average concentrations are recorded at the end of each measuring period. The specifications of this instrument are as follows: the range of determination, 0 to 0.5 and 0 to 1.0 ppM for NO and NO/sub 2/; reproducibility, within 2% of the full scale; the measuring period, 1 hr.; rate of flow of atmospheric air, 300 ml/min for 0 to 0.5 ppM range and 150 ml/min for 0 to 1.0 ppM range; the volume of the reaction solution, 29 ml; the colorimeter, 1 light source, 2 paths photometric colorimeter; the measuring wavelength, 545 nm; the Saltzman coefficient, 0.72; filter, gas fiber filter paper, 55 in. diameter (GA-20); power source, AC 100 V, 50 and 60 Hz; and output DC 0 to 1 V linearized. Replacements of parts are necessary for photoelectric tubes, filters, and reagents at various intervals of time. Maintenance points were tabulated.}
journal = []
volume = {23:5}
journal type = {AC}
place = {Japan}
year = {1974}
month = {May}
}