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A. P. BUCK INC.
7101 Presidents Dr.
Suite 110
Orlando, Fl. 32809
Phone: 800-330-2825 
Phone:407-851-8602
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 Methyl bromide (CH3Br)
Item Item Details
(Price is for domestic US market only)
Methyl bromide (CH3Br)
Item Name:
Methyl bromide (CH3Br)
Item #:
GAS-136H

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Methyl bromide (CH3Br)
 
Methyl bromide CH3Br NO.136H


Performance

Measuring Range

10 to 20ppm

20 to 300ppm

300 to 600ppm

Number of Pump Stroke

2

1

1/2

Correction Factor

1/2

1

2

Sampling Time

2 minutes per pump stroke

Detecting Limit

4 ppm (n=2)

Color Change

White  Yellow

Reaction Principle

Methyl bromide is oxidized by nascent oxygen to liberate bromine.
It reacts with o-tolidine to produce yellow stain.

Coefficient of Variation 10% (for 20 to 100 ppm), 5% (for 100 to 300 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

Cl2, Br2, NOx

 -

Plus error

 Produce yellow stain

Saturated halogenated HCs

 -

Plus error

 Produce yellow stain


Other substance measurable with this detector tube

Substance

Correction Factor

Pump Strokes

Measuring Range

Chlorobromomethane

0.9

1

18 to 270 ppm

1,2-Dibromoethane

0.7

1

14 to 210 ppm

n-Butyl Bromide

1.2

1

24 to 360 ppm


Calibration gas generation Permeation tube method


TLV-TWA TLV-STEL Explosive range
1ppm - 10 to 15%
 
 Range 10-600


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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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