Gastec 131 Quick-measuring Detector tubes Vinylidene chloride CH2:CCl2 (0.025~2 %)

Name: Gastec 131 Quick-measuring Detector tubes Vinylidene chloride CH2:CCl2 (0.025~2 %)
Brand: Gastec

ຜູ້ຜະລິດGastec(ເບິ່ງສິນຄ້າອື່ນໆຂອງຍີ່ຫໍ້ນີ້)

Model131

ຕິດຕໍ່

ຈຳນວນ

ການຊຳລະເງິນທີ່ປອດໄພ

ການຮັບປະກັນຄຸນນະພາບ

ປ່ຽນ ແລະ ສົ່ງຄືນງ່າຍ

ມີບໍລິການຈັດສົ່ງ

Indicator: 0.05 to 1 %
Measuring Range:
+ 0.025 to 0.05 %, Number of Pump Strokes 2
+ 0.05 to 1 %, Number of Pump Strokes 1
+ 1 to 2 %, Number of Pump Strokes 1/2
Sampling Time: 1 minute per pump stroke
Colour Change: Orange → Dark green
Reaction Principle: CH2:CHCl + Cr6+ + H2SO4 → Cr3+
Coefficient of Variation: 10% (for 0.05 to 0.2 %), 5% (for 0.2 to 1 %)
Nr. of tests: 10
Pump: GV-100S/110S

Catalog

Manual

Performance

Measuring Range

0.025 to 0.05 %

0.05 to 1 %

1 to 2 %

Number of Pump Strokes

1/2

Correction Factor

1/2

Sampling Time

1 minute per pump stroke

45 seconds

Detecting Limit

0.005 % (n=2)

Colour Change

Orange → Dark green

Reaction Principle

CH2:CHCl + Cr⁶⁺ + H2SO4 → Cr³⁺

Coefficient of Variation

10% (for 0.05 to 0.2 %), 5% (for 0.2 to 1 %)

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

Organic solvents

Dark green

Calibration gas generation

Static gas dilution method

TLV-TWA	TLV-STEL	Explosive range
1 ppm (2014)	-	3.6 to 23 %

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