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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

 

 Methyl mercaptan (CH3SH)
Item Item Details
(Price is for domestic US market only)
Methyl mercaptan (CH3SH)
Item Name:
Methyl mercaptan (CH3SH)
Item #:
GAS-71

Product Image Gallery
Methyl mercaptan (CH3SH)
 
Methyl mercaptan CH3SH NO.71
71


Performance

Measuring Range

0.25 to 2.5 ppm

2.5 to 70 ppm

70 to 140 ppm

Number of Pump Strokes

2 to 10

1

1/2

Correction Factor

1/2 to 1/10

1

2

Sampling Time

2 minutes per pump stroke

Detecting Limit

0.1 ppm (n=10)

Color Change

White Yellow

Reaction Principle

 2CH3SH +PdSO4 (CH3S)2 Pd+ H2SO4
Coefficient of Variation

10% (for 2.5 to 20 ppm), 5% (for 20 to 70 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

Acetylene, Ethylene

2000 ppm

Plus error

Discolor pale brown
to whole layer

Carbon Monoxide

2000 ppm

Plus error

Discolor pale brown
to whole layer

Other Mercaptans

 -

Plus error

Discolor yellow stain

Hydrogen Sulfide

500 ppm

No effect

No stain


Calibration gas generation Permeation tube method


TLV-TWA TLV-STEL Explosive range
0.5ppm - 3.9 to 21.8%

 
 Range 0.25-140


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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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