Gastec 17LL 快速氟化氢测量探测管HF(0.05~24ppm)

Indicator: 0.1~3.0ppm
Measuring Range: 
+ 0.05 to 3.0 ppm, Number of Pump Strokes 5
+ 3.0 to 6.9 ppm, Number of Pump Strokes 3
+ 6.9 to 24 ppm, Number of Pump Strokes 1
Sampling Time: 1 minute per pump stroke
Colour Change: Yellow → Brown
Coefficient of Variation: 10% (for 0.05 to 1.0 ppm), 5% (for 1.0 to 3.0 ppm)
Nr. of tests: 10
Pump: GV-100S/110S

Detail

Catalog

Manual

Performance
Measuring Range
0.05 to 3.0 ppm 3.0 to 6.9 ppm 6.9 to 24 ppm
Number of Pump Strokes
5 3 1
Correction Factor
1 2.3 8.0
Sampling Time 1 minute per pump stroke
Detecting Limit 0.025 ppm (n=5)
Colour Change Yellow → Brown
Reaction Principle Hydrogen fluoride reacts with indicator to produce brown stain.
Coefficient of Variation 10% (for 0.05 to 1.0 ppm), 5% (for 1.0 to 3.0 ppm)
Shelf Life 2 Years
Corrections for temperature & humidity Temperature correction is necessary
Humidity correction is necessary
Store the tubes at cool and dark place.
Possible coexisting substances and their interferences (NOTE)
Substance Concentration Interference Change colour by itself to
Nitric acid 1.0ppm + Pale reddish violet
Hydrogen chloride 0.1ppm + Reddish violet
Hydrogen peroxide 10ppm No No

 

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