Gastec 5M Quick-measuring Detector tubes Sulphur dioxide SO2 (20~3600ppm)

Name: Gastec 5M Quick-measuring Detector tubes Sulphur dioxide SO2 (20~3600ppm)
Brand: Gastec

ຜູ້ຜະລິດGastec(ເບິ່ງສິນຄ້າອື່ນໆຂອງຍີ່ຫໍ້ນີ້)

Model5M

ຕິດຕໍ່

ຈຳນວນ

ການຊຳລະເງິນທີ່ປອດໄພ

ການຮັບປະກັນຄຸນນະພາບ

ປ່ຽນ ແລະ ສົ່ງຄືນງ່າຍ

ມີບໍລິການຈັດສົ່ງ

Indicator: 100 to 1800 ppm
Measuring Range:
+ 20 to 100 ppm, Number of Pump Strokes 4
+ 100 to 1800 ppm, Number of Pump Strokes 1
+ 1800 to 3600 ppm, Number of Pump Strokes 1/2
Sampling Time: 45 seconds per pump stroke
Colour Change: Purple → Yellow
Reaction Principle: SO2 + BaCl2 +H2O → BaSO3 + 2HC, HCl+Base → Chloride
Coefficient of Variation: 10% (100 ~ 600 ppm), 5% (600 ~ 1800 ppm)
Nr. of tests: 10
Pump: GV-100S/110S

Catalog

Manual

Performance

Measuring Range

20 to 100 ppm

100 to 1800 ppm

1800 to 3600 ppm

Number of Pump Strokes

1/2

Correction Factor

1/5

Sampling Time

45 seconds per pump stroke

Detecting Limit

4 ppm (n=4)

Colour Change

Purple → Yellow

Reaction Principle

SO2 + BaCl2 +H2O → BaSO3 + 2HCl
HCl+Base → Chloride

Coefficient of Variation

10% (for 100 to 600 ppm), 5% (for 600 to 1800 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

Carbon monoxide, Nitric oxide		No	No
Carbon dioxide		No	No
Nitrogen dioxide	≧ 1/10	+	White ( ≧ 600ppm)
Hydrogen sulphide	≧ 10 times		No

Calibration gas generation

High pressure gas cylinder method

TLV-TWA	TLV-STEL	Explosive range
-	0.25 ppm (2014)	-

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