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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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 Methylene chloride
Item Item Details
(Price is for domestic US market only)
Methylene chloride
Item Name:
Methylene chloride
Item #:
GAS-138

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Methylene chloride
 
Methylene chloride CH2Cl2 NO.138


Performance

Measuring Range

20 to 50 ppm

50 to 500 ppm

Number of Pump Stroke

2

1

Correction Factor

0.4

1

Sampling Time

3 minutes per pump stroke

Detecting Limit

10 ppm (n=2)

Color Change

White Pale Pink

Reaction Principle

CH2:Cl2 + CrO3 + H2S2O7 Cl2
Cl2+ 3,3,5,5-Tetramethylbenzidine Holoquinone

Coefficient of Variation

15% (for 50 to 100 ppm), 10% (for 100 to 500 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

Cl2, Br2, I2

 -

Plus error

Discolors pale pink

Unsaturated halogenated HCs

 -

Plus error

Discolors pale pink

Saturated halogenated HCs

 -

Plus error

Discolors pale pink
Other substance measurable with this detector tube

Substance

Correction Factor

Pump Strokes

Measuring Range

Ethyl Chloride

0.3

1

15 to 150 ppm


Calibration gas generation Diffusion tube method


TLV-TWA TLV-STEL Explosive range
50ppm - 15.5 to 66.9%


 
 Range 20-500


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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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