产品分类
PRODUCT CENTER

联系我们

销售电话:时经理

                18121126516

                021-64835787

  

产品详情
  • 产品名称:硫化氢气体检知管4M H2S

  • 产品型号:4M
  • 产品厂商:日本GASTEC
  • 产品文档:
你添加了1件商品 查看购物车
简单介绍:
硫化氢气体检知管4M H2S,Measuring Range 12.5 to 25 ppm 25 to 250 ppm 250 to 500 ppm Number of Pump Strokes 2 1 1/2 Correction Factor 1/2 1 2 Sampling Time 30 seconds硫化氢气体检知管价格
详情介绍:

 

硫化氢气体检知管4M H2S
Hydrogen sulphide    No.4M

H2S

硫化氢气体检知管4M H2S

Performance
 

Measuring Range

12.5 to 25 ppm

25 to 250 ppm

250 to 500 ppm

Number of Pump Strokes

2

1

1/2

Correction Factor

1/2

1

2

Sampling Time

30 seconds per pump stroke

Detecting Limit

2.5 ppm (n=2)

Color Change

White → Brown

Reaction Principle

H2S + Pb(CH3COO)2 → PbS + 2CH3COOH

Coefficient of Variation5% (for 25 to 250 ppm)
Shelf Life3 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 color by itself

Nitrogen dioxide

1/4 timer

Minus error

No discoloration

Sulfur dioxide

1 time

Plus error

No discoloration

Mercaptans

-

No effect

No discoloration



Other substance measurable with this detector tube


 
Calibration gas generationPermeation tube method


 


TLV-TWATLV-STELExplosive range
10ppm15ppm4.0 to 44%
* 请输入您的名字,方便我们和您联系
* 请输入您的电话,方便客服及时解答您的问题
* 请输入您详情地址,方便详细提供当地的市场讯息