Gastec 21 Quick-measuring Detector tubes Carbonyl sulphide COS (5~200ppm)

Name: Gastec 21 Quick-measuring Detector tubes Carbonyl sulphide COS (5~200ppm)
Brand: Gastec

ຜູ້ຜະລິດGastec(ເບິ່ງສິນຄ້າອື່ນໆຂອງຍີ່ຫໍ້ນີ້)

Model21

ຕິດຕໍ່

ຈຳນວນ

ການຊຳລະເງິນທີ່ປອດໄພ

ການຮັບປະກັນຄຸນນະພາບ

ປ່ຽນ ແລະ ສົ່ງຄືນງ່າຍ

ມີບໍລິການຈັດສົ່ງ

Indicator: 10 to 100 ppm
Measuring Range:
+ 5 to 10 ppm, Number of Pump Strokes 2
+ 10 to 100 ppm, Number of Pump Strokes 1
+ 100 to 200 ppm, Number of Pump Strokes 1/2
Sampling Time: 3 minute per pump stroke
Colour Change: Blue → Yellow
Reaction Principle:
- COS + I2O5 + H2SO4 → SO2 + CO2
- SO2 + BaCl2 + H2O → BaSO3+ 2HCl
- HCl + Base → Chloride
Coefficient of Variation: 10% (for 10 to 30 ppm), 5% (for 30 to 100 ppm)
Nr. of tests: 5
Pump: GV-100S/110S

Catalog

Manual

Performance

Measuring Range

5 to 10 ppm

10 to 100 ppm

100 to 200 ppm

Number of Pump Strokes

1/2

Correction Factor

1/2

Sampling Time

3 minutes per pump stroke

Detecting Limit

1 ppm (n=2)

Colour Change

Blue → Yellow

Reaction Principle

COS + I2O5 + H2SO4 → SO2 + CO2
SO2 + BaCl2 + H2O → BaSO3+ 2HCl
HCl + Base → Chloride

Coefficient of Variation

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

Shelf Life

2 Years

Corrections for temperature & humidity

Unnecessary

Store the tubes in the refrigerator to keep at 10ºC (50ºF) or below.

Possible coexisting substances and their interferences (NOTE)

Substance

Concentration

Interference

Change colour by itself to

Carbon disulphide		+	Yellow
sulphur dioxide		+	Yellow
Butane	5000 ppm		No
Propane	5000 ppm		No

Calibration gas generation

High pressure gas cylinder method

TLV-TWA	TLV-STEL	Explosive range
5ppm(2014)	-	12 to 19%

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