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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
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
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.
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
Once you use these ingenious clips, no others will do. These
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
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.
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.
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 Z286095 Color red
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.
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.
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'
P6418 Parafilm "M" Cutter/Dispenser Opaque Blue
Quartz Digital Timers
Battery power, 1.5 v button cell
Battery power, 1.5 v button cell
Battery power, 1.5 v button cell
Battery power, 1.5 v button cell
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.
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.
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.
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.
Manufactured from Non-autoclavable polyethylene.
Valuable for neutralizing static electricity in the laboratory. Zerostat is a registered trademark of Discwasher, Inc.
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
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