Rapid air titration method for determining SO/sub 2/ concentration in inhalation chambers

Journal Article · Sat Jun 01 04:00:00 EDT 1985 · Am. Ind. Hyg. Assoc. J.; (United States)

DOI:https://doi.org/10.1080/15298668591394905· OSTI ID:5484526

Snyder, E A; Palmes, E D

A rapid air titration method for determining SO/sub 2/ concentration in inhalation chambers has been validated using the pararosaniline-formaldehyde (PRA) method of West and Gaeke. This air-titration (iodate) method is an adaptation of iodometric methods using a starch indicator. Potassium iodate and an excess of potassium iodide are used in the reaction. Sampling is completed in ten minutes or less and concentration is calculated by use of a simple formula. Linear equations were derived over the range of concentrations from 0.5 to 100 ppm SO/sub 2/ for uncorrected iodate bubbler results, data corrected for tandem bubbler concentrations and data corrected for mean iodate bubbler efficiency. Linear correlation with the PRA method over this range was 0.999 for all three sets of data.

• Research Organization: New York Univ. Medical Center, NY
• OSTI ID: 5484526
• Journal Information: Am. Ind. Hyg. Assoc. J.; (United States), Journal Name: Am. Ind. Hyg. Assoc. J.; (United States) Vol. 46:6; ISSN AIHAA
• Country of Publication: United States
• Language: English

Related Subjects

500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
CHALCOGENIDES
CHEMICAL ANALYSIS
COMPARATIVE EVALUATIONS
DATA
EXPERIMENTAL DATA
EXPOSURE CHAMBERS
HALOGEN COMPOUNDS
INFORMATION
IODINE COMPOUNDS
IODOMETRY
MEASURING METHODS
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
QUANTITATIVE CHEMICAL ANALYSIS
SAMPLING
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
TITRATION