Parafilm M All-Purpose Laboratory Film

Parafilm M All-Purpose Laboratory FilmKeep moisture loss to a minimum and protect the integrity of your laboratory and research applications 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 healthcare, pharmaceutical and research labs. Protects test results in research, clinical and quality control labs. Watertight seal on test tubes, beakers and flasks. Resists waters, acids,

Keep moisture loss to a minimum and protect the integrity of your laboratory and research applications 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 healthcare, pharmaceutical and research labs.

Permeability Characteristics:

• Oxygen (ASTM 1927-98): 150 cc/m² d at 23°C and 50 RH
• Carbon Dioxide (Modulated IR Method): 1200 cc/m² d at 23°C and 0% RH
• Water Vapor (ASTM F1249-01): Flat: 1 g/m² d at 38°C and 90% RH Creased: same as flat
• Note: Because of low water permeability and the insensitivity of this material to moisture vapor, it is unlikely that differences in relative humidity (RH) will make a difference in the oxygen permeability

Effects of Common Reagents:

• Hydrochloric acid conc. (12N) dil. (5N) - no apparent effect in 24 hours
• Sulfuric acid conc. (36N) dil. (5N) - no apparent effect in 24 hours
• Nitric acid conc. (16N) dil. (5N) - no apparent effect in 24 hours
• Sodium hydroxide conc. (22%) - no apparent effect in 24 hours
• Ammonium hydroxide conc. (28% NH3) - no apparent effect in 24 hours
• Potassium permanganate: 5%: no apparent effect except permanent dark brown coloration in 18 hours 0.1%: same as 5% but slightly less color Iodine solution 0.1N: no effect except brown staining in 18 hours
• Salt (NACL) solution 20%: no apparent effect in 24 hours
• Ethyl Alcohol 95%: no apparent effect except some face whitening in 24 hours
• Isopropyl alcohol 99%: no apparent effect in 24 hours
• Not recommended for use with chlorinated, non-polar aliphatic and aromatic solvents
• Film becomes soft and sticky at about 130°F to 150°F (54°C to 66°C)