Passive Colorimetric Dosimeter Tubes for Ammonia, Carbon Monoxide, Carbon Dioxide, Hydrogen Sulfide, Nitrogen Dioxide and Sulfur Dioxide

AIHAJ ◽  
1985 ◽  
Vol 46 (7) ◽  
pp. 357-362 ◽  
Author(s):  
PAUL W. McCONNAUGHEY ◽  
ELMER S. McKEE ◽  
IRVIN M. PRITTS
1997 ◽  
Vol 62 (4) ◽  
pp. 609-619 ◽  
Author(s):  
Vlastimil Kubáň

Ammonia (up to 0.3 vol.%) can be determined (RSDs < 2%) after separation from a process gas stream containing (vol.%): carbon dioxide (0.3-20), hydrogen sulfide (< 0.4), hydrogen cyanide (< 1.5 . 10-4), sulfur dioxide (1), carbon monoxide (< 3) in 50-90 vol.% nitrogen and hydrocarbons. The ammonia content in sample is determined through changes in the conductivity of an acceptor stream (3 mM boric acid) caused by absorption of the analyte passed through a Nafion capillary membrane.


1976 ◽  
Vol 59 (6) ◽  
pp. 1404-1408
Author(s):  
Wilson L Brannon ◽  
Walter R Benson ◽  
George Schwartzman

Abstract The feasibility of examining medicinal gases for trace impurities, using an infrared spectrophotometer in conjunction with a 10 m gas cell, was investigated. Many of the impurities for which the USP includes limits were detected and measured at concentrations at or below those permitted by the USP; these include sulfur dioxide, carbon dioxide, carbon monoxide, and water. However, others (hydrogen sulfide, nitric oxide, and nitrogen dioxide) were not detected at these levels by this technique. Methane was found at low levels in some samples.


2010 ◽  
Vol 408 (23) ◽  
pp. 5917-5923 ◽  
Author(s):  
Ji-Qin Ni ◽  
Albert J. Heber ◽  
Alan L. Sutton ◽  
Dan T. Kelly ◽  
John A. Patterson ◽  
...  

1976 ◽  
Author(s):  
N. R. Dibelius

The measurement of air pollutants emitted to the atmosphere in exhaust gases from stationary gas turbines must be made in accordance with applicable government specifications in those cases where the measurements are being made to determine compliance with regulations. This paper reviews the methods for measuring opacity, sulfur dioxide, oxides of nitrogen, carbon monoxide, carbon dioxide, oxygen, hydrocarbons, and particulates. In addition, the paper references the Federal Register (volume, number, and page) in which the official specification appears. Other methods, including ASME, SAE, and ASTM, are listed where applicable.


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