Gastec 123L Gastec 123L Quick-measuring Detector tubes Xylene C6H4(CH3)2 (2~200ppm)

Name: Gastec 123L Gastec 123L Quick-measuring Detector tubes Xylene C6H4(CH3)2 (2~200ppm)
Brand: Gastec

制造商Gastec(查看更多该品牌的产品)

Model123L

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Indicator: 2 to100 ppm
Measuring Range:
+ 2 to100 ppm, Number of Pump Strokes 2
+ 100 to 200 ppm, Number of Pump Strokes 1
Sampling Time: 1.5 minute per pump stroke
Colour Change: White → Brown
Reaction Principle: C6H4(CH3)2 + I2O5 + H2SO4 → I2
Coefficient of Variation: 10% (for 2 to 30 ppm), 5% (for 30 to 100 ppm)
Nr. of tests: 10
Pump: GV-100S/110S

Catalog

Manual

Performance

Measuring Range

2 to100 ppm

100 to 200 ppm

Number of Pump Strokes

Correction Factor

Sampling Time

1.5 minutes per pump stroke

Detecting Limit

1 ppm (n=2)

Colour Change

White → Brown

Reaction Principle

C6H4(CH3)2 + I2O5 + H2SO4 → I2

Coefficient of Variation

10% (for 2 to 30 ppm), 5% (for 30 to 100 ppm)

Shelf Life

3 Years

Corrections for temperature & humidity

Unnecessary

Store the tubes at cool and dark place.

Possible coexisting substances and their interferences (NOTE)

Substance

Concentration

Interference

Change colour by itself to

Acetylene , Ethylene , Hexane	No	No
Alcohols , Esters , Ketones	No	No
Aromatic hydrocarbons	+	Brown

Calibration gas generation

Diffusion tube method

TLV-TWA	TLV-STEL	Explosive range
100 ppm	150 ppm	1.0 to 7.0%

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