简单介绍： tbm and dms检测管 tert-butyl mercaptan & dimethyl sulphide，detector tube tbm tube dms tube measuring range 1 to 15 mg/m3 1 to 15 mg/m3 number of pump stroke 1 1 cor......
tbm and dms检测管 产品详情
详情介绍：
tbm and dms检测管 tert-butyl mercaptan & dimethyl sulphideno.77sh(ch3)3cshperformance
detector tube tbmtube dms tube
measuringrange
1 to 15mg/m3
1 to 15mg/m3
number of pumpstroke
1
1
correctionfactor
1
1
samplingtime
3 minutes per pumpstroke
detectinglimit
0.2 mg/m3(n=1)
colorchange
yellow → pink
pink →pale yellow
reactionformula
(ch3)3csh + hgcl2 → (ch3)cshgcl + hcl
hcl + base → chloride compound
(ch3)2s +kmno4 (pink) → pale yellowproduct
coefficient ofvariation 10% (for1 to 5 mg/m3), 5% (for 5 to 15 mg/m3)
shelflife 2years
correctionsfor
temperature & humidity temperature correction is necessary
store the tubes inthe refrigerator to keep at 10oc (50of) orbelow.
possible coexisting substances and theirinterferences (note)
for tert-butyl mercaptan tube substance
concentration
interference
change color by itself
hydrogensulfide
- plus error
discolor to pink
mercaptans
- plus error
discolor to pink
for dimethyl sulfidetube
substance
concentration
interference
change color by itself
olefins
- plus error
discolor to pale yellow
tetrahydrothiophene
- plus error
discolor to paleyellow
calibration gasgeneration tbm tube:diffusion tube method
dms tube:permeation tubemethod
tlv-twa tlv-stel explosive range
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