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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

 

 Hydrogen cyanide (CH3CO2Humidity Correction)
Item Item Details
(Price is for domestic US market only)
Hydrogen cyanide (CH3CO2Humidity Correction)
Item Name:
Hydrogen cyanide (CH3CO2Humidity Correction)
Item #:
GAS-81D-1

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Hydrogen cyanide (CH3CO2Humidity Correction)
 
Acetic acid CH3CO2Humidity Correction NO.81D
81D


Performance

Measuring Range

0.5 to 100 ppm

Sampling Hours

1 to 10 hours

Detecting Limit

0.2 ppm (10 hours)

Color Change

Purple Yellow

Reaction Principle

Acetic acid neutralize alkali to discolor the indicator to yellow.

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

Interference

Change color by itself

Hydrogen chloride, Nitric Acid

Plus error

Produce yellow stain

Chlorine, Nitrogen dioxide

Plus error

Produce yellow stain

Hydrogen cyanide, Sulfur dioxide

Plus error

Produce yellow stain


Other substance measurable with this detector tube

Substance

Correction

Sampling Hours

Measuring range

Formic acid

Factor: 1.1

1 to 10

0.55 to 110 ppm

Acetic anhydride Factor: 0.6 1 to 10 0.3 to 60 ppm


Calibration gas generation Diffusion tube method


TLV-TWA TLV-STEL Explosive range
10ppm 15ppm 4 to 19.9%

 
 Range 1-200


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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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