Gastec 12M Quick-measuring Detector tubes Hydrogen cyanide HCN (17~2400ppm)

Name: Gastec 12M Quick-measuring Detector tubes Hydrogen cyanide HCN (17~2400ppm)
Brand: Gastec

ຜູ້ຜະລິດGastec(ເບິ່ງສິນຄ້າອື່ນໆຂອງຍີ່ຫໍ້ນີ້)

Model12M

ຕິດຕໍ່

ຈຳນວນ

ການຊຳລະເງິນທີ່ປອດໄພ

ການຮັບປະກັນຄຸນນະພາບ

ປ່ຽນ ແລະ ສົ່ງຄືນງ່າຍ

ມີບໍລິການຈັດສົ່ງ

Indicator: 50 to 800 ppm
Measuring Range:
+ 17 to 50 ppm, Number of Pump Strokes 2
+ 50 to 800 ppm, Number of Pump Strokes 1
+ 800 to 2400 ppm, Number of Pump Strokes 1/2
Sampling Time: 1 minutes per pump stroke
Colour Change: Yellow → Red
Reaction Principle: 2HCN + HgCl2 → Hg(CN)2 + 2HCl, HCl + Base → Chloride
Coefficient of Variation: 10% (for 50 to 200 ppm), 5% (for 200 to 800 ppm)
Nr. of tests: 10
Pump: GV-100S/110S

Catalog

Manual

Performance

Measuring Range

17 to 50 ppm

50 to 800 ppm

800 to 2400 ppm

Number of Pump Strokes

1/2

Correction Factor

1/3

Sampling Time

1 minute per pump stroke

Detecting Limit

1 ppm (n=2)

Colour Change

Yellow → Red

Reaction Principle

2HCN + HgCl2 → Hg(CN)2 + 2HCl
HCl + Base → Chloride

Coefficient of Variation

10% (for 50 to 200 ppm), 5% (for 200 to 800 ppm)

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

Hydrogen sulphide	500 ppm	+	Red
sulphur dioxide	500 ppm	+	Red

Calibration gas generation

Permeation tube method

TLV-TWA	TLV-STEL	Explosive range
-	C 4.7 ppm	5.6 to 40%

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