简单介绍： ***乙酸检测管81 acetic acid ch3co2h，number of pump strokes 2 1 1/2 correction factor 1/2 1 2sampling time 1minute per pump stroke detecting limit 0.2 ppm (n=2)color c......
***乙酸检测管81 acetic acid ch3co2h 产品详情
详情介绍：
***乙酸检测管81 acetic acid ch3co2h
acetic acid no.81ch3cho
performance
measuring range
1 to 2 ppm
2 to 50 ppm
50 to 100 ppm
number of pump strokes
2
1
1/2
correction factor
1/2
1
2
sampling time
1 minute per pump stroke
detecting limit
0.2 ppm (n=2)
color change
pink → yellow
reaction principle
ch3co2h + base → reaction product
coefficient of variation 10% (for 2 to 10 ppm), 5% (for 10 to 50 ppm)
shelf life 3years
corrections for
temperature & humidity humidity 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
hydrogen chloride, hydrogen cyanide,nitric acid
3 times or higher +
yellow
chlorine, sulphur dioxide, nitrogen dioxide
1/2 times or higher
+
yellow
other substance measurable with this detector tube
substance
correction
no. of pump strokes
measuring range
acetic anhydride
factor: 0.3
1
0.6 to 15 ppm
acrylic acid
factor: 1.0
1
2 to 50 ppm
formic acid
factor: 2.6
1
5.2 to 130 ppm
isovalenic acid
factor: 1.0
1
2 to 50 ppm
maleic anhydride
factor: 0.4
1
0.8 to 20 ppm
methacrylic acid
factor: 0.9
1
1.8 to 45 ppm
propionic acid
factor: 1.5
1
3to 75 ppm
calibration gas generation diffusion tube method
tlv-twa tlv-stel explosive range
10 ppm 15 ppm -