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。
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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
| 型號 | 尺寸 | 包裝 | 貨號 |
| 1 L | 7" x 7" | 5-pk. | 22950* |
| 3 L | 10" x 10" | 5-pk. | 22951 |
| 5 L | 12" x 12" | 5-pk. | 22952 |
| 10 L | 12" x 22" | 5-pk. | 22953 |
| 12 L | 13" x 24" | 5-pk. | 22966 |
| 25 L | 18" x 24" | 5-pk. | 22967 |
| 40 L | 24" x 24.5" | 5-pk. | 22968 |
| 可更換隔墊，表面是聚四氟乙烯硅膠，直徑4毫米 | 10-pk. | 22104-A |
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
