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A. P. BUCK INC.
7101 Presidents Dr.
Suite 110
Orlando, Fl. 32809
Phone: 800-330-2825 
Phone:407-851-8602
Fax: 407-851-8910

 

 Sulfur dioxide (SO2)
Item Item Details
(Price is for domestic US market only)
Sulfur dioxide (SO2)
Item Name:
Sulfur dioxide (SO2)
Item #:
GAS-5M

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Sulfur dioxide (SO2)
 
Sulfur dioxide SO2 NO.5M


Performance

Measuring Range

20 to 100ppm

100 to 1800 ppm

1800 to 3600 ppm

Number of Pump Strokes

4

1

1/2

Correction Factor

1/5

1

2

Sampling Time

45 seconds per pump stroke

Detecting Limit

4 ppm (n=4)

Color Change

Purple Yellow

Reaction Principle

Sulfur dioxide reacts with barium chloride to liberate
hydrogen chloride to discolor the pH indicator to yellow.

Coefficient of Variation 10% (for 100 to 600 ppm), 5% (for 600 to 1800 ppm)
Shelf Life 3 Years
Corrections for
temperature & humidity		 Temperature correction is necessary
Store the tubes at cool and dark place.


Possible coexisting substances and their interferences (NOTE)

Substance

Concentration

Interference

Change color by itself

Carbon monoxide,
Nitric oxide

 -

No effect

No discoloration

Carbon dioxide

 -

No effect

No discoloration

Nitrogen dioxide

1/10

Plus error

Produces white stain
at 600 ppm or higher

Hydrogen sulfide

10 times

Minus error

No discoloration


Calibration gas generation High pressure gas cylinder method


TLV-TWA TLV-STEL Explosive range
2ppm 5ppm -

 
 Range 20-3600


Money Orders and personal Checks also Accepted, choose Pay By Mail during checkout!

Notice: This publication is intended for general information only and should not be used as a substitute for reviewing applicable government regulations, equipment operating instructions, or legal standards. The information contained in this document should not be construed as legal advice or opinion nor as a final authority on legal or regulatory procedures. A.P. BUCK Inc reserves the right to make changes to information, features, and specifications of any product without notice. A.P. BUCK Inc has made every effort to ensure the accuracy of information displayed on this Website, however, A.P. BUCK Inc. is not responsible for typographical errors appearing on this Website. Price and availability information is subject to change without notice.

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