Description
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Specifications for this item
- 1 roll of Parafilm M Laboratory Film in cardboard dispenser.
- Item number: PM992
- Roll size: 2 inches x 250 feet
- Made in the USA
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)
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