Cl2C:CHCl

Performance

MeasuringRange	2to 5ppm	5to 100ppm	100to 250ppm
Number of Pump Strokes	2	1	1/2
Correction Factor	0.4	1	2.5
SamplingTime	1 minute per pumpstroke
DetectingLimit	0.4 ppm (n=2)
ColorChange	Yellow → ReddishPurple
ReactionPrinciple	Cl2C:CHCl + PbO2 +H2SO4 →HCl HCl + Basic Compound → Chloride
Coefficient ofVariation	10% (for5 to 20 ppm), 5% (for 20 to 100 ppm)
ShelfLife	2Years
Correctionsfor temperature & humidity	Temperature correction is necessary
Store the tubes inthe refrigerator to keep at 10^oC (50^oF) orbelow.

Possible coexisting substances and theirinterferences

(NOTE)

Substance	Concentration	Interference	Change color byitself
Nitric Oxide,Nitrogen dioxide	-	No effect	Nodiscoloration
Hydrogen chloride,Chlorine, Bromine	-	Plus error	Produce reddishpurple stain
Acetone	200 ppm	No effect	Nodiscoloration
UnsaturatedHalogenated HCs	-	Plus error	Produces reddishpurple stain
Aromatichydrocarbons	100ppm	Minus error	Nodiscoloration

Othersubstance measurable with this detector tube

Calibration gasgeneration

Diffusion tubemethod

TLV-TWA	TLV-STEL	Explosive range
50ppm	100ppm	-

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