Gastec 4LL 빠른 측정 감지기 튜브 황화수소 H2S (0.25-120 ppm)

Name: Gastec 4LL 빠른 측정 감지기 튜브 황화수소 H2S (0.25-120 ppm)
Brand: Gastec

제조사Gastec(이 브랜드의 다른 제품 보기)

Model4LL

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수량

안전한 결제

품질 보장

간편 교환 및 반품

배송 가능

Indicator: 5 to 60 ppm
Measuring Range:
+ 0.25 to 2.5 ppm, Number of Pump Strokes 2 to 10
+ 2.5 to 60 ppm, Number of Pump Strokes 1
+ 60 to 120 ppm, Number of Pump Strokes 1/2
Sampling Time: per pump stroke
Colour Change: White → Brown
Reaction Principle: H2S + Pb(CH3COO)2 → PbS + 2CH3COOH
Coefficient of Variation: 5% (for 2.5 to 60 ppm)
Nr. of tests: 10
Pump: GV-100S/110S

Catalog

Manual

Manual tube

Measuring Range

0.25 to 2.5 ppm

2.5 to 60 ppm

60 to 120 ppm

Number of Pump Strokes

10 to 2

1/2

Correction Factor

1/10 to 1/2

Sampling Time

1 minute per pump stroke

Detecting Limit

0.1 ppm (n=10)

Colour Change

White → Brown

Reaction Principle

H2S + Pb(CH3COO)2 → PbS + 2CH3COOH

Coefficient of Variation

5% (for 2.5 to 60 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

Nitrogen dioxide	1/4 time		No
Sulphur dioxide	1/1	+	No
Mercaptans, Hydroren cyanide		No	No
Ozone		Bleaching	No

Calibration gas generation

Permeation tube method

TLV-TWA	TLV-STEL	Explosive range
1 ppm (2014)	5 ppm (2014)	4.0 to 44%

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