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A. P. BUCK INC.
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Suite 110
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Phone: 800-330-2825 
Phone:407-851-8602
Fax: 407-851-8910

 

 Hydrogen sulfide + Sulfer dioxide (H2S,SO2)
Item Item Details
(Price is for domestic US market only)
Hydrogen sulfide + Sulfer dioxide (H2S,SO2)
Item Name:
Hydrogen sulfide + Sulfer dioxide (H2S,SO2)
Item #:
GAS-45S

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Hydrogen sulfide + Sulfer dioxide (H2S,SO2)
 
Hydrogen Sulfide,Sulfur Dioxide H2S,SO2
(Separete quantification)		 NO.45S
45S


Performance

Name of Gas

 SO2 tube H2S tube SO2 tube

H2S tube

 SO2 tube

H2S tube

Measuring Range

2.5 to 0.5

 12.5 to 2.5

0.5 to 10

 (2.5) to 60

10 to 20

 60 to 120

Pump Strokes

2

1

1/2

Correction Factor

1/2

1

 2

Sampling Time

1 minute per pump stroke

Detecting Limit

0.05 ppm (n=2)

Color Change

SO2 tube : Yellowish green Yellow
H2S tube : White Dark brown

Reaction Formula

SO2 tube:Sulfur dioxide reacts with barium chloride to liberate
hydrogen chloride to discolor the pH indicator to yellow.

H2S tube:Hydrogen sulfide reacts with lead acetate
to form lead sulfide, which color is brown.

Coefficient of Variation

SO2 tube: 10% (for 0.5 to 2 ppm), 5% (for 2 to 10 ppm)
H2S tube:10% (for 2.5 to 10 ppm), 5% (for 10 to 60 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

SO2 tube H2S tube SO2 tube H2S tube

Nitrogen dioxide

 5 ppm Plus error No effect

Pale purple

 No discoloration

Nitrogen monoxide
Mercaptans
Carabon monoxide

 - No effect No effect No discoloration


Calibration gas generation Permeation tube method


TLV-TWA TLV-STEL Explosive range
SO2 : 2ppm
H2S : 10ppm		 SO2 : 5ppm
H2S : 15ppm		 H2S : 4.0 to 44%

 
 Range 1.25-120(H2S) 0.25-20 (SO2)


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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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