Page 235 - Demo

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Tubes, Test
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Tubes, Test, continued
Test Tubes without Rims, Disposable
Rimless tubes exactly the same as those tubes listed on page 530 except these have a lighter wall thickness and are considered disposable in industry. However, these tubes will hold up to repeated use. Commonly referred to as culture tubes. Not intended for high heat.
Catalog No.
Description
Size (mm)
Pkg. Size
Price/Pkg.
GP9165
Test Tubes without Rims, Disposable
6 x 50
300
$ 23.05
GP7034
10 x 75
250
17.55
GP7035
12 x 75
250
17.35
GP7036
13 x 100
250
22.20
GP7037
16 x 100
250
27.80
GP7038
16 x 125
250
32.25
GP7039
16 x 150
250
32.10
GP9263
18 x 150
125
23.60
GP7041
20 x 150
250
77.65
GP9164
25 x 150
250
125.80
Test Tubes with Screw Caps
Borosilicate glass tubes and specially formulated caps are autoclavable. Caps are fabricated from a special formula resistant to the effects of temperature and steam in autoclaving. White marking spot provides an excellent surface for pencil notations. Caps have a cemented-in, white rubber liner. 20 x 150 mm tubes have a capacity of approximately 30.0 mL.
Test Tubes with Screw Caps, Plastic
Graduated, clear plastic tubes with screw caps have conical bottoms. Designed for use in a centrifuge, these affordable tubes are convenient for routine lab tests where the sample tubes must be capped to mix the reagents. Perfect for soil and water tests. Polystyrene, 125 mm long x 18 mm outer diameter Capacity 15 mL. Sold in packages of 30.
Mini Soda Bottles—Giant Test Tubes
All plastic soda bottles start as a small plastic bottle known as a preform. When the bottler is ready to fill the bottle with soda, the preform is heated and blown into a larger bottle, such as a 2-liter soda bottle. These thick-walled, durable polyethylene preforms are a great substitute for glass test tubes. Perfect for storing liquids, gel crystals or mixtures to be used or displayed in your laboratory throughout the academic year. In the biology laboratory, they are ideal for growing or cloning plants, collecting water samples and displaying specimens. Not for use with strong acids and bases or organics. Not autoclavable. 40-mL capacity. Each preform measures approximately 12 cm long x 2.5 cm diameter. Caps are available separately (AP6996), or provide your own from 2-liter soda bottles. Packages of 30.
TUBES, TEST continued on next page.
Test Tubes with Screw Caps GP9158
Test Tubes without Rims, Disposable GP9165, etc.
Catalog No.
Description
Price/Each
GP9158
Test Tubes with Screw Caps
$1.60
Test Tubes with Screw Caps, Plastic AP7116
Catalog No.
Description
Price/Each
AP7116
Test Tubes with Screw Caps, Plastic
$17.60
Mini Soda Bottles— Giant Test Tubes AP5395
Catalog No.
Description
Price/Pkg.
AP5395
Mini Soda Bottles—Giant Test Tubes, Pkg. 30
$27.75
AP6996
Caps for Mini Soda Bottles, Pkg. 30
8.40
Heating and Cooling Glassware
• Never heat a glass vessel to dryness over an open flame.
• Do not put hot glassware on cold or wet surfaces and do not put cold glassware on hot surfaces. • Do not heat glassware that is etched, cracked, chipped or scratched.
• Cool all labware slowly.
• Do not heat thick-walled glassware, such as bottles and graduated cylinders, over a direct flame. • Do not heat glassware directly on electrical heating elements.
• Do not look down into any vessel being heated.
Safety Tip