无水检测管161_详细资料

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简单介绍乙醚无水检测管161 Ethylether (C2H5)2O，Measuring Range 0.04 to 1.0% Number of Pump Strokes 1 Correction Factor 1 Sampling Time 2 minutes per pump stroke Detecting

简单介绍
无水检测管161 Ethylether （C2H5）2O，Measuring Range 0.04 to 1.0% Number of Pump Strokes 1 Correction Factor 1 Sampling Time 2 minutes per pump stroke Detecting

无水检测管161 Ethylether （C2H5）2O的详细介绍
无水检测管161 Ethylether （C2H5）2O
Ethylether No.161（C2H5）2O

Performance

MeasuringRange

0.04 to 1.0%

Number of Pump Strokes

1

Correction Factor

1

SamplingTime

2 minutes per pumpstroke

DetectingLimit

0.001% （n=1）

ColorChange

Yellowish brown →Dark green

ReactionPrinciple

（C2H5）2O+ Cr⁶⁺ + H2SO4 → Cr³⁺

Coefficient ofVariation 10% （for 0.04 to 0.2%）, 5% （for 0.2 to 1.0 %）

ShelfLife 3 Years

Correctionsfor
temperature & humidity Temperature correction is necessary

Store the tubes at cool ａnd darkplace.

Possible coexisting substances ａnd theirinterferences （NOTE）

Substance

Concentration

Interference

Change color by itself

Propane

0.2%

Plus error

Produce dark greenfor whole layer

Alcohols, Esters,Ketones
-
Plus error

Produce greenishbrown

Aromatic HCs.

500 ppm

Plus error

Produce greenishbrown

Hydrogensulfide
500 ppm
Plus error

Produce greenstain

Sulfurdioxide

500 ppm

Plus error

Produce greenstain

Acetylene

0.3%

Plus error

Greenish brown forwhole layer

Othersubstance measurable with this detector tube

Substance

Correction Factor

Pump Strokes

Measuring Range

Isopropylether

0.45

2

0.018 to 0.45%

Methyl ether

0.85

1

0.03 to 0.85%

Tetrahydrofuran

1.4

1

0.056 to 1.4%

Toluene by scale 1 0.02 to0.8%

Calibration gasgeneration Static gas dilutionmethod

TLV-TWA TLV-STEL Explosive range

400ppm 500ppm 1.9to 48%

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MeasuringRange	0.04 to 1.0%
Number of Pump Strokes	1
Correction Factor	1
SamplingTime	2 minutes per pumpstroke
DetectingLimit	0.001% （n=1）
ColorChange	Yellowish brown →Dark green
ReactionPrinciple	（C2H5）2O+ Cr⁶⁺ + H2SO4 → Cr³⁺
Coefficient ofVariation	10% （for 0.04 to 0.2%）, 5% （for 0.2 to 1.0 %）
ShelfLife	3 Years
Correctionsfor temperature & humidity	Temperature correction is necessary
Store the tubes at cool ａnd darkplace.

Substance	Concentration	Interference	Change color by itself
Propane	0.2%	Plus error	Produce dark greenfor whole layer
Alcohols, Esters,Ketones	-	Plus error	Produce greenishbrown
Aromatic HCs.	500 ppm	Plus error	Produce greenishbrown
Hydrogensulfide	500 ppm	Plus error	Produce greenstain
Sulfurdioxide	500 ppm	Plus error	Produce greenstain
Acetylene	0.3%	Plus error	Greenish brown forwhole layer

Substance	Correction Factor	Pump Strokes	Measuring Range
Isopropylether	0.45	2	0.018 to 0.45%
Methyl ether	0.85	1	0.03 to 0.85%
Tetrahydrofuran	1.4	1	0.056 to 1.4%
Toluene	by scale	1	0.02 to0.8%