Restek ALTEF Gas Sampling Bags, 40 L, 24"x24.25" w/Polypropylene Combo Valve & Septum, 1 Eyelet, 5-pk.

• 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.

Looking for a rugged, low-background alternative to sampling bags that is more cost-effective than a canister? Our disposable, diffusion-free air sampling bottles are housed in a foam-filled protective box to prevent breakage during sampling, transportation, and analysis.

Note: Use only Point Style 5 or H syringe needles.