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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-5L

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


Performance

Measuring Range

1.25 to 2.5ppm

2.5 to 5ppm

5 to 100ppm

100 to 200ppm

Number of Pump Strokes

4

2

1

1/2

Correction Factor

1/4

1/2

1

2

Sampling Time

1 minute per pump stroke

Detecting Limit

0.25ppm (n=4)

Color Change

Blue Yellow

Reaction Principle

Sulfur dioxide reacts with barium chloride to generate
hydrogen chloride to discolor the indicator to yellow

Coefficient of Variation

10% (for 5 to 20 ppm), 5% (for 20 to 100 ppm)

Shelf Life 3 Years
Corrections for
temperature & humidity		 Unnecessary
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

1:1

Plus error

Produces light purple discoloration

Hydrogen sulfide

 -

No effect

No discoloration


Calibration gas generation Permeation tube method


TLV-TWA TLV-STEL Explosive range
2ppm 5ppm -
 
 Range 1.25-200


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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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