多層鋁箔采樣袋

對低分子量化合物，如甲烷，一氧化碳，二氧化碳，和永久氣體有良好的穩(wěn)定性。
防止光照和水分，具有良好的惰性。
由于自身本底水平原因，不推薦用于采集ppm水平的揮發(fā)性有機化合物。
5層的保護膜，*大限度地減少的氣體滲透。
- 60 號的尼龍（外層）
- 鋁金屬層
- 聚乙烯層
- 0.0003" 鋁箔層
- 0.002" 聚乙烯（內(nèi)層）

訂貨信息：

多層鋁箔采樣袋

Sampling bags are a low-cost whole air sampling device for high level VOCs and permanent gases. Several EPA, NIOSH, and OSHA methods exist for bag sampling for a variety of applications: stationary sources emissions; workplace atmospheres; ambient, indoor air quality; and breath analysis. Choose the film type appropriate for your application. All our bags feature a polypropylene combo valve with hose connection to fit 3/16" ID tubing and syringe port with replaceable septum. A single eyelet provides handling convenience.

• Good stability for low molecular weight compounds, such as methane, CO, CO2, and permanent gases.

• Chemically inert with light and moisture protection.

• Not recommended for low ppm VOCs due to background levels.

• Protective 5-layer barrier minimizes gas permeability. - 60 gauge nylon (outer layer) - Metalized aluminum - Polyethylene - 0.0003" aluminum foil - 0.002" polyethylene (inner layer)

• Continous sampling temperature up to 190 °F (88 °C) indefinitely; do not exceed 190 °F for any period of time.

Physical Specifications:
Composition: 5-layer
Thickness: 0.005"
Tensile Strength: 19 lb/in (CD)
Max. Operating Temp.: 87 °C
Specific Gravity: 1.09 g/mL
Oxygen Transition Rate: 0.0005 cc / 100 in2 / day @ 0% RH, 23 °C
Water Vapor Transition Rate: 0.0005 g / 100 in2 / day @ 90% RH, 40 °C
Carbon Dioxide Transition Rate: 0.0005 cc / 100 in2 / day