Thousands of our customers have found the following products invaluable in carrying out their daily laboratory tasks. They all provide a simple and economical solution to difficult, time consuming or hazardous tasks. Check our list of tried and tested bestsellers to see if they could help you. Click on images for more details.
Keck Joint Clips Corrosion proof and secure	Ampule Breaking Collar Avoid cut fingers	Transfer Pipettes A design for every application
Aldrich AtmosBag Inexpensive alternative to glove boxes	Microcentrifuge Tube Cutter Removes hazard of knives and blades		Gas Collecting Balloons Economic transportation of small volumes of gas	Zerostat Anti-static Instrument Effective ellimination of static	NMR Tube Carrier Sample and personnel protection
Chemflex Transfer Lines Safe, flexible transfer which preserves chemical integrity	Pressurized Duster Clean with no fear of lint contamination		Hemacytometer Cell Counter Simple determination of cell viability	Laboratory Markers Economical smudge proof labeling solution	Microcentrifuge Tube Cap Holder Easy cap closure for microtubes
Non-contact Handheld IR Thermometer Hazard free temperature measurement of hot or moving surfaces	Pap Pen for Immunostaining Prevent waste of valuable solutions	Parafilm Unique self-sealing, moldable and flexible film	Quartz Digital Timers A wide range from basic to multichannel	Septa Sizer Accurate and quick determination of required septa size	SigmaClean® Water Bath Treatment Keeps water baths free of bacteria and fungi
Spinbar® Disposable Magnetic Stirring Bars Removes sample contamination risk			Zipper-top Bag Preserves sample integrity and avoids spills

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Balloons for Gas Collecting

These thick-walled, natural latex rubber provide an economical method for maintaining dry, oxygen-free atmosphere over small-scale laboratory reactions. Slight positive pressure is maintained in the balloon, which serves as a reservoir to accommodate pressure changes and to ensure net flow of gas out of vessel in event of small leak in the system. Also useful for delivering small quantities of non-hazardous gases from cylinders to other use locations. Supplied as a package of assorted colors.

Z154970 1L capacity
Z154989 7L capacity
Z154997 12L capacity

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Chemflex Transfer Lines

Two 12-gauge SS needles (6 and 18 in.) are connected to the CHEM-FLEX 106 tubing with nylon clamps. Liquids contact only PTFE and SS during transfers. For extra security when using large bore transfer needles, fasten septum to bottle or flask opening with a wrap-it tie.

Z231029 Tube Length 30 inch
Z281751 Tube Length 60 inch
Z281778 Tube Length 120 inch

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Dust-Pro Pressurized Duster

Contents are 100% non-flammable, ozone-safe (no CFCs), and triple-filtered for purity. Gas stream is delivered through narrow-orifice nozzle for dusting with pinpoint accuracy.

Z379522 Package size: 8 oz.

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Hemacytometer Cell Counting Slide

H-shaped moat forms two cell-counting areas. The surface features enhanced Neubauer rulings. Replacement cover slips sold separately.

Z359629 Bright-Line™ hemacytometer and two coverslips
Z375357 Replacement coverslips for hemacytometer

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Keck Joint Clips

Once you use these ingenious clips, no others will do. These
color-coded, Delrin® plastic joint clips will not scratch glassware or corrode. They can withstand temperatures up to 302 °F (150 °C) and are resistant to concentrated alkalis and diluted acids; not resistant to halogen gases or concentrated acids.
Suitable for USA and European joint sizes.

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Laboratory Markers

Economical markers that write on cold, wet surfaces. Quick drying ink avoids smudges. Available in an assortment of colors with fine or broad tip.

S5769 Fine tip, color black
S6269 Fine tip, color blue
S6519 Fine tip, color red
S5894 Broad tip, color black
S6644 Broad tip, color blue
S6894 Broad tip, color red
S6769 Broad tip, color green

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Microcentrifuge Tube Cap Holder

Snap on tube holders to provide secure lid closure. Large tab for easy tube removal from centrifuges, water baths, racks and heaters. Polypropylene holders securely fit 0.5 and 1.5 mL standard microcentrifuge tubes. Autoclavable in assorted colours - blue, green, pink, yellow and orange.

Z708372

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Microcentrifuge Tube Cutter

Safely remove tube tips without the hazard from knives or razor blades. Retrieve tip samples and radioactive pellets without re-suspension. Use cutter with polyethylene or polypropylene tubes up to 10mm diameter.

Z708364

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NMR Tube Carrier

This unbreakable NMR tube carrier fits into your labcoat pocket like a pen. It not only provides protection for the sample but also laboratory personnel when transporting samples. It has a tightly fitting snap-on cap and a shirt clip that securly fixes the carrier in your pocket. The carriers are available in various colors to allow easy identification between samples. Each carrier holds a single
5 mm diameter. × 7 in. length NMR tube.

Z286095 Color red
Z286052 Color white
Z286109 Color blue
Z286192 Color assortment pack

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Non-contact Handheld IR Thermometer

This non-contact infrared thermometer makes measuring surface temperature simple and safe. No need to touch hot, hazardous, or moving objects. The built-in sensor measures the amount of infrared radiation flowing from an object - the more heat, the more radiation.

Simple to use, all you have to do to check the temperature is point the sensor at an object between a couple of inches and a couple of feet away. The farther away the object is, the larger the area being measured. Simply point and press the button to get an instant temperature reading or hold button down to receive continuous readings.

• Built-in laser pointer to improve aim
• Large digital display with backlighting
• Switchable °C/°F temperature units
• Pocket size meters complete with 9V battery
• Handheld model has Type-K thermocouple input for contact measurements
• Field of view: 6.5 : 1

Z509388

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Pap Pen for Immunostaining

Use the pen to draw a hydrophobic circle around slide-mounted tissue sections. Prevents the waste of valuable reagents by keeping liquid pooled in a small droplet. Insoluble in ethanol, acetone and water, but will wash off with xylene. Ideal for use with paraffin-mounted sections or slides treated with albumin or poly-lysine. Each pen can make more than 600 circles.

Z377821

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Parafilm®

Parafilm M is a unique self-sealing, moldable, and flexible film for numerous uses in the typical laboratory. Parafilm M has unique permeability properties, impressive water vapor transport properties, and is resistant to many common reagents. With the use of the special Parafilm M dispenser, one can conveniently cut off uniform sized strips or squares of film. The thickness of all Parafilm products is 0.005" (127µm). Another novel characteristic of Parafilm is that it can be stretched 3 to 4 times its original length before breaking.

Rolls of Parafilm sealing tape.

P7668 Size: 4' X 250'
P7793 Size: 4' X 125'
P7543 Size: 2' X 250'
P6543 Size: 20' X 50'

Parafilm Dispenser and Cutter

P6418 Parafilm "M" Cutter/Dispenser Opaque Blue
P8299 Parafilm "M" Cutter/Dispenser Clear Acrylic

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Quartz Digital Timers

Model T-7 - Display: 4 digits, 0.5 inch
Special features: 99 minute countdown timer with buzzer at end of countdown; memory recall function; magnet in back of unit.

Battery power, 1.5 v button cell

T6039

Model T-20 - Display: 6 digits, 0.5 inch
Special features: 24 hour countdown with alarm; 24 hour stopwatch; digital watch; memory recall function; magnet, clip and stand in back of unit.

Battery power, 1.5 v button cell

T6164

Model T-440 - Display: 6 digits, 0.75 inch
Special features: four independent channels each offer 100 hour countdown and count up with buzzer alarm; memory recall function; clock, magnet, clip and stand on back of unit.

Battery power, 1.5 v button cell

T2166

Model T-590 - Countdown Timer with 3 independent channels, alarm and time-out function - 100 hrs to 0 secs; 3 Channel display; buzzer will sound for 1 minute and start count up; 100 hour stopwatch with 1/100 sec. Real Time Clock. s, 0.5 inch.

Battery power, 1.5 v button cell

T2291

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Septa Sizer

The Sigma-Aldrich Precision Seal™ Septa Sizer is an easy, accurate, and quick way to determine the septa size you need for your glassware. Simply fit your joint or tube over the buttons and read off the septa size.

Z561886

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SigmaClean® Water Bath Treatment

A cationic surfactant and germicide used to keep water baths, incubators, and other water temperature controlled instruments free of bacterial and fungal growth. Requires 0.16 mL/L or 0.02 oz/gal. Treats 200 US gallons / 32 litres of water.

S5525

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Spinbar® Disposable Magnetic Stirring Bars

If cross-contamination is one of your major concerns these single-use magnetic stirrers will put your mind at rest. These economical bars have a PTFE coating which is chemically inert for high purity contact. ALNICO V magnet.

Packaged 100 pieces/bag.

Z420212 Size 1/2 in. × 1/8 in.
Z420220 Size 1 in. × 5/16 in.
Z420239 Size 1 5/8 in. × 5/16 in.
Z420247 Size 2 in. × 5/16 in.

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Transfer Pipettes

Disposable transfer pipettes are a great way to transfer liquids without the worry of cross-contamination. Available in 19 styles, our extensive range is sure to have one that fits your need. Available as non-sterile, sterile, or sterile and individually wrapped.

• Unified design with built-in pipette bulb
• Safe, convenient use, and disposal
• Reduces loss of cells and proteins that bind to glass
• Heat sealable to create liquid-tight storage

Manufactured from Non-autoclavable polyethylene.

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Zerostat Anti-static Instrument

Valuable for neutralizing static electricity in the laboratory.
Prevents charged particles from "flying" during weighing or transfer, and keeps film, glass, and plasticware dust and lint-free. Non-radioactive, and does not require an electrical power supply or batteries. Life expectancy is 1,500 squeezes of trigger.

Zerostat is a registered trademark of Discwasher, Inc.

Z108812

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Zipper-top Polythene Bags

Made from clear, 4 microinch thick polythene, these bags are tough enough for most jobs. The zipper-top makes sealing quick, efficient, and simple.

Z162930 2-1/2 X 3 inches / 6.2 x 7.5 cm
Z162973 9 X 12 inches / 22.5 x 30.0 cm
Z162965 5 X 8 inches / 12.5 x 20.0 cm
Z162949 3 X 5 inches / 7.5 x 20.0 cm
Z162957 4 X 6 inches / 8.0 x 15.0 cm
Z162981 20 of each size

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