Gastec 183 Quick-measuring N,N-Dimethyl formamide HCON(CH3)2 (0.8~90ppm)

Name: Gastec 183 Quick-measuring N,N-Dimethyl formamide HCON(CH3)2 (0.8~90ppm)
Brand: Gastec

ຜູ້ຜະລິດGastec(ເບິ່ງສິນຄ້າອື່ນໆຂອງຍີ່ຫໍ້ນີ້)

Model183

ຕິດຕໍ່

ຈຳນວນ

ການຊຳລະເງິນທີ່ປອດໄພ

ການຮັບປະກັນຄຸນນະພາບ

ປ່ຽນ ແລະ ສົ່ງຄືນງ່າຍ

ມີບໍລິການຈັດສົ່ງ

Indicator: 2 to 30 ppm
Measuring Range:
+ 0.8 to 2 ppm, Number of Pump Strokes 2
+ 2 to 30 ppm, Number of Pump Strokes 1
+ 30 to 90 ppm, Number of Pump Strokes 1/2
Sampling Time: 1 minute per pump stroke
Colour Change: Pink → Pale red
Reaction Principle: HCON(CH3)2 + NaOH → R-NH2, 2R-NH2 + H2SO4 → (R-NH2)2SO4
Coefficient of Variation: 15% (for 2 to 10 ppm), 10% (for 10 to 30 ppm)
Nr. of tests: 10
Pump: GV-100S/110S

Catalog

Manual

Performance

Measuring Range

0.8 to 2 ppm

2 to 30 ppm

30 to 90 ppm

Number of Pump Strokes

1/2

Correction Factor

0.4

Sampling Time

1 minute per pump stroke

Detecting Limit

0.1 ppm (n=2)

Colour Change

Pink → Pale red

Reaction Principle

HCON(CH3)2 + NaOH → R-NH2
2R-NH2 + H2SO4 → (R-NH2)2SO4

Coefficient of Variation

15% (for 2 to 10 ppm), 10% (for 10 to 30 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

Amines	+	Pale red
Ammomia	+	Pale red
Hydrazine	+	Pale red

Calibration gas generation

Diffusion tube method

TLV-TWA	TLV-STEL	Explosive range
10 ppm	-	2.2 to 15.2%

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