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홈 GASTEC- 가스 검파관 Gastec 3L 빠른 측정 감지기 암모니아 NH3

Gastec 3L 빠른 측정 감지기 암모니아 NH3

Indicator: 2 to 30 ppm
Measuring Range: 
+ 0.5 to1 ppm, Number of Pump Strokes 2
+ 1 to 30 ppm, Number of Pump Strokes 1
+ 30 to 78 ppm, Number of Pump Strokes 1/2
Sampling Time:  45 seconds per pump stroke
Colour Change: Pink → Yellow
Reaction Principle: 2NH3 + H2SO4 → (NH4)2SO4
Coefficient of Variation: 10% ( 1 ~ 10 ppm), 5% (10 ~ 30 ppm)
Nr. of tests: 10
Pump: GV-100S/110S

Details

Catalog

Manual

Manual tube

Performance
Measuring Range
0.5 to1 ppm 1 to 30 ppm 30 to 78 ppm
Number of Pump Strokes
2 1 1/2
Correction Factor
1/2 1 2.6
Sampling Time 45 seconds per pump stroke
Detecting Limit 0.2 ppm (n=2)
Colour Change Pink → Yellow
Reaction Principle 2NH3 + H2SO4 → (NH4)2SO4
Coefficient of Variation 10% (for 1 to 10 ppm), 5% (for 10 to 30 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 colour by itself to
Carbon dioxide 1% No
Hydrazine   + Yellow
Amines 1/15 + Yellow ( 5 ppm)
Calibration gas generation Permeation tube method
TLV-TWA TLV-STEL Explosive range
25 ppm(2014) 35 ppm(2014) 15 to 28%

 

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