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NIOSH Analytical Method, Sulfur Dioxide, S308, (Set 3).

Authors
NIOSH
Source
NIOSH 1977 Nov:7 pages
Link
NIOSHTIC No.
00076482
Abstract
The method is described for determining sulfur-dioxide (7446095) in the air, including the principle, range and sensitivity, interferences, precision and accuracy, advantages and disadvantages, apparatus, reagents, calibration and standards, and calculations. The principle is based upon a yellow or yellow-orange to pink color change in the sample obtained from a midget bubbler containing hydrogen-peroxide after isopropyl-alcohol is added, pH adjusted and titrated with barium-perchlorate using Thorin as the indicator. The range is 6.6-26.8 milligrams per cubic meter with a precision of milligrams per cubic meter.
Keywords
NIOSH-Author; NIOSH-Analytical-Method; Standards-Completion-Program; SCP; Analytical-Method; Standards; Sampling; Set-3; Air-quality-measurement; Air-sampling; Procedures; Oxides; Sulfur-compounds; Colorimetry; Exposure-limits;
CAS No.
7446-09-5;
Publication Date
19771101
Fiscal Year
1978
NTIS Accession No.
NTIS Price
Identifying No.
S308
NIOSH Division
DPSE;
Source Name
Division of Physical Sciences and Engineering, NIOSH, Cincinnati, Ohio, 7 pages, 3 references
State
OH;
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