Parafilm M 10 ft Long Portion Laboratory Film 2 in Wide Waterproof Grafting Tape

Parafilm M Laboratory Film Parafilm M All-Purpose Laboratory Film Covers and Shields Your Products from Moisture While Allowing Gas Permeability Keep moisture loss to a minimum and protect the contents of your laboratory items with a flexible covering for test tubes, beakers, petri dishes and more. Convenient, flexible and self-sealing – Parafilm M laboratory film is an essential item in health care, pharmaceutical and research labs. Specifications for this item Item number: PM992 Tape size: 2 inches x 10 feet Made in the USA Features Flexible and self-sealing material allows it to cling around irregular shapes and surfaces Stretches more than 200% of original length Resistant up to 48 hours against many polar substances Reduce the risk of tampered data with a covering that is odorless, colorless and semi-transparent Prevents moisture and volume loss due to material composition and tight seal Efficient and cost-effective covering for: Test tubes Beakers Vials Petri dishes Flasks Various other instruments and objects with irregular surfaces Overwrap to further secure stoppers, lids and caps Shelf or tray liner to prevent slipping of bottles or instruments Permeability Oxygen: (ASTM 1927-98) 150 cc/m d at 23C and 50% RH Carbon Dioxide: (Modulated IR Method) 1200 cc/m d at 23C and 0% RH Water Vapor: (ASTM F1249-01) Flat: 1 g/m d at 38C and 90% RH Creased: 1 g/m d at 38C and 90% RH Effects of Common Reagents Potassium Permanganate 5%: No apparent effect except permanent dark brown coloration in 18 hours 0.1%: Same as 5% except slightly less color Iodine solution (0.1N) No effect except staining brown in 18 hours Ethyl Alcohol (95%) No apparent effect except some face whitening in 24 hours No apparent effect in 24 hours: Hydrochloric Acid conc. (12N)dil. (5n) Sulphuric Acid conc. (36n) dil. (5n) Nitric Acid conc. (16n) dil. (5n) Sodium Hydroxide conc. (22%) Ammonium Hydroxide conc. (28% NH3) Salt (NACL) solution (20%) Isopropyl Alcohol (99%) Not recommended for use with chlorinated, non-polar aliphatic and aromatic solvents Film becomes soft and sticky at about 130F to 150F (68C) Description Protect the integrity of your laboratory and research applications by keeping moisture loss to a minimum and shield the contents of your items with a flexible covering and overwrap. Prevents moisture and volume loss due to material composition and seal strength Reduce the risk of tampered data Allows for off-gassing while still creating a tight moisture-barrier Odorless, colorless and semi-transparent Self-sealing and pliability allows Parafilm M to cling around irregular shapes and surfaces Permeability to oxygen, carbon dioxide and water vapor Ideal covering for test tubes, beakers, petri dishes, flasks and more Overwrap to further secure stoppers, lids and caps Stretches to more than 200% of its original length. Features & details Flexible and self-sealing material allows it to cling around irregular shapes and surfaces