Walter Stern

Photo of Perforated Soda Lime Glass Beads
Soda lime perforated glass for use in absorption columns, distilling tubes, serum mixing, and wherever a large surface area of glass is desired. Size tolerances held to .25mm. Sold by the pound.
Photo of WSI Solid Borosilicate Glass Beads

These solid borosilicate glass beads can be used as distillation column packing, boiling stones or to provide support for chromatography columns used in gel filtrations. Borosilicate beads have excellent chemical resistance. Diameter and spherical variation maximum is 10% of glass bead diameter. Sold in one pound plastic jars.

(Sample Photo Displayed. Individual items may differ from the image shown.)

 

Photo of Glass Beads, Soda Lime
Soda lime glass beads. Diameter and spherical variation maximum is 10% of glass bead diameter. Soda lime glass beads have a lower softening point (505° C) than borosilicate glass. Sold by the pound.
Photo of WSI 110 Watch Glass Beaker Covers

These concave clear annealed watch glass covers can be used to return condensation to beakers. Fire polished edges.

(Sample Photo Displayed. Individual items may differ from the image shown.)

 

Photo of Doyen Scissors, Stainless Steel
Doyen Scissors, Stainless Steel with two heavy blunt points. Choose straight or curved tip. Length, 178mm.
Photo of Rochester Ochsner Hemostatic Forceps, Curved. Stainless Steel
Rochester Ochsner Hemostatic Forceps, Curved. Stainless Steel. Box lock joints, serated jaws and 1 x 2 teeth.
Photo of Halstead Hemostatic Forceps
Halstead Hemostatic Forceps with box lock joint and serrated jaws. Straight or curved. Length, 127mm.
Photo of Diffenbach Serrafine Forceps. Stainless Steel
Stainless Steel Diffenbach Serrafine Forceps with serrated, blunt rounded tips. Normally closed, open with finger pressure. Straight or curved tips. 55mm (2.25") long.
Photo of Stainless Steel Forceps w/Blunt Tips
Stainless Steel Forceps w/Blunt Tips. Serrations on handle and tips. Without guide pin.
Photo of Straight Mouse-Tooth Dissecting Forceps, 1 x 2 Teeth. Stainless Steel
Straight Mouse-Tooth Dissecting Forceps, 1 x 2 Teeth. Stainless Steel. Serrations on handle. Without guide pin.
Photo of Straight Dissecting Scissors with Sharp/Sharp Tip. Stainless Steel
Straight Dissecting Scissors with Sharp/Sharp Tip. Stainless Steel construction. Choose cutting edge length of 30mm or 40mm. Total length, 114mm.
Photo of Meter Stick
Meter stick made of hard maple with lacquer finish. 1" wide x 5/16" thick. Both edges one side have centimeter markings with each centimeter mark numbered and every ten centimeter in bold numerals. Each centimeter is divided into millimeters. Reverse side is divided into inches and eights. Choose plain ends or metal tipped.
Photo of Micrometers, English and Metric Scale
English or Metric scale micrometers have a dull chrome finish. Friction stop, locknut, adjustable for wear. English scale is 0 to 1 inch, .001 graduations. Metric scale reads 0 to 25mm, 0.01mm graduations. Comes in padded plastic case.
Photo of Rubber Policemen, Diagonal Cut.
Rubber Policemen without rod, diagonal cut end. Made of heavy pure gum rubber. Cut edge is approximately 3mm thick. Choose policemen for 1/8" (5mm) or 3/16" (5mm) O.D. rod.
Photo of Rubber Gas Sampling Bag
One gallon rubber gas sampling bag. For collecting and storing large samples of gases.
Photo of Amber Latex Rubber Bulbs for Pipets and Droppers

Amber Latex Rubber Bulbs for Pipets and Droppers are made of pure gum rubber. Can be used for pipet drawing or replacement of dropper bulbs.

(Sample Photo Displayed. Individual items may differ from the image shown.)     

 

Photo of Natural Rubber Dropper Bulbs
Natural rubber dropper bulbs in two sizes.
Photo of Rubber Syringe Bulbs
Pure rubber, non-blooming. For use with pipettes, dropping tubes, etc.
Photo of Natural Rubber Atomizer Bulbs with Valves.
Natural rubber atomizer bulbs with 4" tubing on one end. Valves are on both ends. Capacity of 75mL.
Photo of Paper Cutting Shears
Stainless steel shears for cutting paper. Black enameled handles.