Parafilm PM-992 Laboratory Sealing Film 5cm W x 76.2m L (2"x 250 ft) - 1 Roll

Parafilm PM-992 Laboratory Sealing Film 5cm W x 76.2m L (2"x 250 ft) 1 Roll

The No.1 Laboratory Sealing Film Brand!

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, research and chemical labs.

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

Use:

• 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%)

Warning:

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)

Caution:

For external use only. Use only as directed by the manufacturer. Keep away from infants and children.

Returns accepted for unused and undamaged items. Buyer pays return postage cost.

Securely packed in a box and dispatched with a tracking number.

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