Gastec 71 速く検出チューブメチルメルカプタンCH3SH（0.25〜140 ppm）

Name: Gastec 71 速く検出チューブメチルメルカプタンCH3SH（0.25〜140 ppm）
Brand: Gastec

メーカーGastec(このブランドの他の製品を見る)

Model71

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数量

安全なチェックアウト

高品質な対応

簡単な交換・返品

配送対応可能

Indicator: 5~70ppm
Measuring Range:
+ 0.25 to 2.5 ppm, Number of Pump Strokes 2 to 10
+ 2.5 to 70 ppm, Number of Pump Strokes 1
+ 70 to 140 ppm, Number of Pump Strokes 1/2
Sampling Time: 1.5 minute per pump stroke
Colour Change: White → Yellow
Reaction Principle: 2CH3SH + PdSO4 → (CH3S)2Pd + H2SO4
Coefficient of Variation: 10% (for 2.5 to 20 ppm), 5% (for 20 to 70 ppm)
Nr. of tests: 10
Pump: GV-100S/110S

Catalog

Manual

Manual tube

Performance

Measuring Range

0.25 to 2.5 ppm

2.5 to 70 ppm

70 to 140 ppm

Number of Pump Strokes

2 to 10

1/2

Correction Factor

1/2 to 1/10

Sampling Time

1.5 minutes per pump stroke

Detecting Limit

0.1 ppm (n=10)

Colour Change

White → Yellow

Reaction Principle

2CH3SH + PdSO4 → (CH3S)2Pd + H2SO4

Coefficient of Variation

10% (for 2.5 to 20 ppm), 5% (for 20 to 70 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

Acetylene, Ethylene	2000 ppm	No(two layers)	Pale brown (whole layer)
Carbon Monoxide	2000 ppm	No(two layers)	Pale brown ( whole layer)
Other Mercaptans		+	Yellow
Hydrogen sulphide	500 ppm	No	No

Calibration gas generation

Permeation tube method

TLV-TWA	TLV-STEL	Explosive range
0.5 ppm(2014)	-	3.9 to 21.8%

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