6728591 หลอด Tube วัดสารเคมีประเภท Acetaldehyde 100/a ยี่ห้อ Draeger
Model : 75-1106
Model (old) : 62-1100-A06
Application Range
Standard Measuring Range 1 to 20 ppm / 0.5 to 10 ppm
Number of Strokes (n) 10/20
Time for Measurement approx. 2 min / approx. 4 min
Standard Deviation ± 15 to 20 %
Color Change yellow -› red
Ambient Operating Conditions
Temperature: 0 to 40 °C
Absolute Humidity: 2 to 15 mg H2O / L
Reaction Principle
a) CH2=CH-CN + CrVI ¨ HCN
b1) HCN + HgCl2 ¨ HCl
b2) HCl + methyl red ¨ red reaction product
Cross Sensitivity
The indication is not affected by:
1,000 ppm acetone
20 ppm benzene
1,000 ppm ethyl acetate
1,000 ppm ethanol
10 ppm ethyl benzene
1,000 ppm hexane
100 ppm toluene
Styrene up to 50 ppm does not influence the indication. Butadiene
reacts with the oxidation layer; in the presence of butadiene, the
acylonitrile indication will be too low (e.g. up to 50 % too low with
400 ppm butadiene).
CHANGE LANGUAGE :
