ALTEF 是PVDF材料，
- Excellent alternative to Tedlar bags for collection of most VOCs.
- Unlike Tedlar bags, ALTEF bags do not produce background levels of dimethylacetamide (DMAC) or phenol.
- Very low VOC and sulfur background compared to Tedlar bags.
- Not recommended for ketones, acetates, hydrogen sulfide, or permanent gases.
- Durable polyvinylidene fluoride (PVDF) film is resistant to abrasion and chemicals, including most acids and organic compounds.
- Contain no additives, fillers, or pigments. Note: Use only Point Style 5 syringes.
Sampling bags are low-cost, whole-air sampling devices for 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. All ALTEF 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.
Physical Specifications:
Composition: proprietary polyvinylidene fluoride (PVDF) film
Thickness: 0.003 "
Tensile Strength: 6,100 psi
Max. Operating Temp.: 82 °C (180 °F)
Specific Gravity: 1.78 g/mL
Oxygen Permeability: 58 cc/m 2/day
Water Vapor Permeability: 12-15 g/m 2/day
Carbon Dioxide Permeability: 172 cc/m 2/day
Multi-Layer Foil Gas Sampling Bags
- Good stability for low molecular weight compounds, such as methane, CO, CO 2 , and permanent gases.
- Chemically inert with light and moisture protection.
- Not recommended for low ppm VOCs due to background levels.
- Protective 4-layer barrier minimizes gas permeability. - 60 gauge nylon (outer layer) - Polyethylene - 0.0003 " aluminum foil - 0.002 " polyethylene (inner layer)
- Maximum operating temperature: 82 °C (180 °F). Note: Use only Point Style 5 syringes.
IOSH, and OSHA methods exist for bag sampling for a variety of applications: stationary sources emissions; workplace atmospheres; ambient, indoor air quality; and breath analysis. All our multi-layer foil 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.
Physical Specifications:
Composition: 4-layer — 60 gauge nylon (outer layer), Polyethylene, 0.0003 " aluminum foil, 0.002 " polyethylene (inner layer)
Thickness: 0.004 "
Tensile Strength: 19 lb/in
Max. Operating Temp.: 82 °C (180 °F)
Specific Gravity: 1.09 g/mL
Oxygen Permeability: 0.0078 cc / m 2/ day @ 0% RH, 23 °C
Water Vapor Permeability: 0.0078 g / m 2/ day @ 90% RH, 40 °C
Carbon Dioxide Permeability: 0.0078 cc / m 2/ day
声明：本站部分 章内容系出于传递信息之目的源自于第三方 站转载，行业企业、终端用户投稿。若对稿件内容有任何疑问或质疑，请立即与本 站联系，本 站将迅速给予回应并第一时间做出处理（联系邮箱：jinwei@zod.com.cn）。