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Hydrogen fluoride (HF)
Item Item Details
(Price is for domestic US market only)
Hydrogen fluoride (HF)
Item Name:
Hydrogen fluoride (HF)
Item #:

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Hydrogen fluoride HF NO.17D



Measuring Range

1 to 100 ppm

Sampling Hours

1 to 10 hours

Detecting Limit

0.5 ppm (10 hours)

Color Change

Yellow Purple

Reaction Principle

Hydrogen fluoride reacts with indicator to produce purple color.

Coefficient of Variation 15% (for 10 to 20 ppm-hr),10% (for 20 to 100 ppm-hr)
Shelf Life 3 Years
Corrections for
temperature & humidity
Temperature and Humidity correction is necessary
Store the tubes at cool and dark place.

Possible coexisting substances and their interferences (NOTE)




Change color by itself


1/5 time

Plus error
(Bleaches zero zone)

Bleaches zero zone

Hydrogen chloride
Nitric acid

1/5 time

Plus error

Discolors Purple

Other substance measurable with this detector tube

Calibration gas generation Permeation tube method

TLV-TWA TLV-STEL Explosive range
- C 3 ppm -
Range 1-100

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