1,1-二氯乙烯检测管130L

Vinylidene chloride No.130L

CH2:CCl2

Performance

MeasuringRange	0.4 to 1 ppm	1 to 14 ppm	14 to 40.6 ppm
Number of Pump Strokes	2	1	1/2
CorrectionFactor	0.4	1	2.9
SamplingTime	1 minute per pumpstroke
DetectingLimit	0.1 ppm (n=2)
ColorChange	Yellow → Reddishbrown
ReactionPrinciple	CH2:CCl2 + Cr⁶⁺+ H2SO4 →HCl HCl+ Base → Reddish brown product
Coefficient ofVariation	10% (for1 to 4 ppm), 5% (for 4 to 14 ppm)
ShelfLife	2Years
Correctionsfor temperature & humidity	Unnecessary
Store the tubes inthe refrigerator to keep at 10^oC (50^oF) orbelow.

Possible coexisting substances and theirinterferences

(NOTE)

Othersubstance measurable with this detector tube

Calibration gasgeneration

Permeation tubemethod

TLV-TWA	TLV-STEL	Explosive range
5ppm	-	5.6 to11.4%

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