Gastec 123 Quick-measuring Detector tubes Xylene C6H4(CH3)2 (5~625ppm)

Name: Gastec 123 Quick-measuring Detector tubes Xylene C6H4(CH3)2 (5~625ppm)
Brand: Gastec

ຜູ້ຜະລິດGastec(ເບິ່ງສິນຄ້າອື່ນໆຂອງຍີ່ຫໍ້ນີ້)

Model123

ຕິດຕໍ່

ຈຳນວນ

ການຊຳລະເງິນທີ່ປອດໄພ

ການຮັບປະກັນຄຸນນະພາບ

ປ່ຽນ ແລະ ສົ່ງຄືນງ່າຍ

ມີບໍລິການຈັດສົ່ງ

Indicator: 20 to 250 ppm
Measuring Range:
+ 5 to10 ppm, Number of Pump Strokes 2
+ 10 to 250 ppm, Number of Pump Strokes 1
+ 250 to 625 ppm, Number of Pump Strokes 1/2
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 10 to 50 ppm), 5% (for 50 to 250 ppm)
Nr. of tests: 10
Pump: GV-100S/110S

Catalog

Manual

Manual tube

Performance

Measuring Range

5 to10 ppm

10 to 250 ppm

250 to 625 ppm

Number of Pump Strokes

1/2

Correction Factor

1/2

2.5

Sampling Time

1.5 minutes per pump stroke

1 minute

Detecting Limit

1 ppm (n=2)

Colour Change

White → Brown

Reaction Principle

C6H4(CH3)2 + I2O5 + H2SO4 → I2

Coefficient of Variation

10% (for 10 to 50 ppm), 5% (for 50 to 250 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

Carbon Monoxide	≦ 1000 ppm	No(Two layers)	Pale brown (Whole layer)
Acetylene, Hexane	≦ 2000 ppm	No(Two layers)	Pale brown (Whole layer)
Toluene	≧ 1/5	+	Brown
Benzene	≧ 1/5	+	Pale yellow

Other substance measurable with this detector tube

Substance

Correction Factor

No. of pump strokes

Measuring Range

Trimethylbenzene

by scale

10 to 300ppm

Calibration gas generation

Diffusion tube method

TLV-TWA	TLV-STEL	Explosive range
100 ppm(2014)	150 ppm(2014)	1.0 to 7.0%

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