Gastec 112L Quick-measuring Detector tubes Ethanol C2H5OH (50-2000ppm)

Name: Gastec 112L Quick-measuring Detector tubes Ethanol C2H5OH (50-2000ppm)
Brand: Gastec

ຜູ້ຜະລິດGastec(ເບິ່ງສິນຄ້າອື່ນໆຂອງຍີ່ຫໍ້ນີ້)

Model112L

ຕິດຕໍ່

ຈຳນວນ

ການຊຳລະເງິນທີ່ປອດໄພ

ການຮັບປະກັນຄຸນນະພາບ

ປ່ຽນ ແລະ ສົ່ງຄືນງ່າຍ

ມີບໍລິການຈັດສົ່ງ

Indicator: 100 to 2000 ppm
Measuring Range:
+ 50 to 100 ppm, Number of Pump Strokes 2
+ 100 to 2000 ppm, Number of Pump Strokes 1
Sampling Time: 2 minutes per pump stroke
Colour Change: Pink → Pale blue
Reaction Principle: C2H5OH + Cr6+ + H2SO4 → Cr3+
Coefficient of Variation: 10% (for 100 to 500 ppm), 5% (for 500 to 2000 ppm)
Nr. of tests: 10
Pump: GV-100S/110S

Catalog

Manual

Manual tube

Performance

Measuring Range

50 to 100 ppm

100 to 2000 ppm

Number of Pump Strokes

Correction Factor

1/2

Sampling Time

2 minutes per pump stroke

Detecting Limit

15 ppm (n=2)

Colour Change

Pink → Pale blue

Reaction Principle

C2H5OH + Cr⁶⁺ + H2SO4 → Cr³⁺

Coefficient of Variation

10% (for 100 to 500 ppm), 5% (for 500 to 2000 ppm)

Shelf Life

3 Years

Corrections for temperature & humidity

Temperature correction is necessary

Store the tubes at cool and dark place.

Possible coexisting substances and their interferences (NOTE)

Substance

Concentration

Interference

Change colour by itself to

Alcohols		+	Pale blue
Acetone	1000 ppm	No	No discolouration up to 1000 ppm
Ethyl Acetate	500ppm	No	No discolouration up to 500 ppm
Toluene	300ppm	No	No discolouration up to 300 ppm
Benzene	70ppm	No	No discolouration

Calibration gas generation

Diffusion tube method

TLV-TWA	TLV-STEL	Explosive range
-	1000ppm (2014)	3.3 to 19%

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