简单介绍： 二硫化碳检测管13m carbon disulphide，二硫化碳检测管13m cs2 carbon disulphide，measuring range 20 to 50 ppm 50 to 1600 ppm 1600 to 4000ppm，二硫化碳气体检测管13 carbon disulphide，二硫化碳气体检测管......
二硫化碳检测管13m carbon disulphide 产品详情
详情介绍：
二硫化碳检测管13m carbon disulphide carbon disulphide3mcs2performance
measuring range
20 to 50 ppm
50 to 1600 ppm
1600 to 4000 ppm
number of pump strokes
2
1
1/2
correction factor
0.4
1
2.5
sampling time
3 minutes per pump stroke
detecting limit
10 ppm (n=2)
colour change
purple → yellow
reaction principle
cs2 +i2o4 +h2s2o7 → so2 + co2
so2 + bacl2+ h2o → baso4+ 2hcl
hcl + base → chloride
coefficient of variation
10% (for 50 to 400 ppm), 5% (for 400 to1600 ppm)
shelf life
3 years
corrections for temperature &humidity
temperature correction isnecessary
store the tubes at cool and darkplace.
possible coexisting substances and theirinterferences (note)
substance
concentration
interference
change color by itself
sulphurdioxide
+
yellow
hydrogensulphide
+
yellow
lower class hcs
1000ppm +
yellow
carbonylsulphide
+
yellow
calibration gasgeneration diffusion tubemethod
tlv-twa tlv-stel explosive range
10 ppm - 1.3 to 50%