Gastec 111 Quick-measuring Detector tubes Methanol CH3OH (0.002~4.5%)

Name: Gastec 111 Quick-measuring Detector tubes Methanol CH3OH (0.002~4.5%)
Brand: Gastec

ຜູ້ຜະລິດGastec(ເບິ່ງສິນຄ້າອື່ນໆຂອງຍີ່ຫໍ້ນີ້)

Model111

ຕິດຕໍ່

ຈຳນວນ

ການຊຳລະເງິນທີ່ປອດໄພ

ການຮັບປະກັນຄຸນນະພາບ

ປ່ຽນ ແລະ ສົ່ງຄືນງ່າຍ

ມີບໍລິການຈັດສົ່ງ

Indicator: 0.02 to 1.5%
Measuring Range:
+ 0.002 to 0.004%, Number of Pump Strokes 4
+ 0.004 to 0.02%, Number of Pump Strokes 2
+ 0.02 to 1.5%, Number of Pump Strokes 1
+ 1.5 to 4.5%, Number of Pump Strokes 1/2
Sampling Time: 1 minute per pump stroke
Colour Change: Pink → Pale blue
Reaction Principle: CH3OH + Cr6+ + H2SO4 → Cr3+
Coefficient of Variation: 15% (for 0.02 to 0.5 %), 10% (for 0.5 to 1.5 %)
Nr. of tests: 10
Pump: GV-100S/110S

Catalog

Manual

Performance

Measuring Range

0.002 to
0.004%

0.004 to
0.02%

0.02 to
1.5%

1.5 to
4.5%

Number of Pump Strokes

1/2

Correction Factor

1/9

1/5

Sampling Time

1 minute per pump stroke

Detecting Limit

0.0004% (n=4)

Colour Change

Pink → Pale blue

Reaction Principle

CH3OH + Cr⁶⁺ + H2SO4 → Cr³⁺

Coefficient of Variation

15% (for 0.02 to 0.5 %), 10% (for 0.5 to 1.5 %)

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
Carbon dioxide	No	No
Carbon monoxide	No	No
sulphur dioxide	No	No

Calibration gas generation

Static gas dilution method

TLV-TWA	TLV-STEL	Explosive range
200 ppm	250 ppm	6 to 36%

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