Descriptions

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

• 1 roll of Parafilm M Laboratory Film in cardboard dispenser.
• Item number: PM996
• Roll size: 4 inches x 125 feet

• 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/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: 1 g/m² d at 38°C 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 130°F to 150°F (68°C)