1-14 Paper strips, change for each full pH unit,100 strips per vial.
1-14 Paper strips, change for each full pH unit,100 strips per vial.
This Revolutionary "pealess" design produces louder, more intense sound. Cuts through crowd noise and can be heard over long distances. Includes adjustable neck strap.
3" glass pipet with rubber bulb, straight.
Acid resisting sheeting, very flexible and lightweight. Accepted as a standard lab apron for years. Cut to provide ample comfort and protection from laboratory reagents. Reinforced at points of strain. Cotton tapes at waist and neck. 27" x 36".
Acid resisting sheeting, very flexible and lightweight. Accepted as a standard lab apron for years. Cut to provide ample comfort and protection from laboratory reagents. Reinforced at points of strain. Cotton tapes at waist and neck. 27" x 36".
Flint Glass. Standard 30ml (1 oz) square bottle with dropper and rubber bulb forming tight stopper.
3" wide bright orange armband with reflective silver stripe. Constructed of nylon reinforced vinyl with elastic straps to enable the band to fit arms 13" in circumference or larger.
For efficiency and cleanliness. Reinforced at points of strain (6 mil). Quality tapes at waist and neck.
This 24 inch x 30 inch child size apron is for efficiency and cleanliness. Reinforced at points of strain (6 mil). Quality tapes at waist and neck.
Stainless steel spatulas with both ends flat.
Stainless steel spatulas with both ends flat.
These black stoppers are made of solid natural rubber that stays pliable over a long period of time. Ideal for use with non-aggressive or concentrated solutions. Low sulfur content. Withstand temperatures from –25 to 70°C (–13 to 158°F). Each stopper has its size marked in raised figures. Sold as one-pound bags.
Features flat countersunk bottom, with a double-ended hooked rod through the middle. Can be used on balance pans, as well as hooked in tandem for lever arm studies. Made of polished brass.
Aluminum die cast clamp for holding 2 pieces of apparatus in 3 positions: right angles, parallel or vertical. Holds rods to 1/2" in diameter.
Aluminum die cast clamp for holding 2 pieces of apparatus in 3 positions: right angles, parallel or vertical. Holds rods to 1/2" in diameter.
Good quality, one-piece plastic frame. Glass lens.
50mm magnifying glass with glass lens molded into a high quality unibody plastic frame. 2.5x magnification.
Zinc plated steel extension rings. Rod diameter is 5/16" overall length is 12".
Zinc plated steel extension rings. Rod diameter is 5/16" overall length is 12".
Porcelain. Glazed inside and outside except bottom outside surface.
Porcelain. Glazed inside and outside except bottom outside surface.
Black bristle. Wooden handle. Tufted end. 3 1/4" brush diameter. 13" overall length.
Black bristle. Wooden handle. Tufted end. 3 1/4" brush diameter. 13" overall length.
For rods up to 1/2" diameter.
4 inch cast iron, zinc-plated support ring with boss head clamp and thumbscrew. Distance from support to center of ring is 4-1/2 inches. For rods up to 1/2 inch in diameter.
This 27 inch x 36 inch adult size apron is for efficiency and cleanliness. Reinforced at points of strain (6 mil). Quality tapes at waist and neck.
Pure latex gum tubing. A clear amber color. Flexible, with long life under constant use. 3/32" wall thickness.
Stamped steel base. Black enamel finish. Zinc plated, detachable rod. 4" x 6" base
Stamped steel base. Black enamel finish. Zinc plated, detachable rod. 4" x 6" base
This is the perfect "carry-with-you" magnifier-microscope. Just 5 1/4" x 1 3/4" x 3/4" with a built-in light source and optics to let you see objects 30 times their actual size. Uses two "AA" batteries (not incl.) and features a center focus wheel for precise one-hand operation. Ideal for inspecting gems, photos, stamps, coins, and learning about plants and insects.
This is the perfect "carry-with-you" magnifier-microscope. Just 5 1/4" x 1 3/4" x 3/4" with a built-in light source and optics to let you see objects 30 times their actual size. Uses two "AA" batteries (not incl.) and features a center focus wheel for precise one-hand operation. Ideal for inspecting gems, photos, stamps, coins, and learning about plants and insects.
Good quality, one-piece plastic frame magnifying glass. Glass lens.
75mm magnifying glass with glass lens molded into a high quality unibody plastic frame. 2.5x magnification.
Self-closing with rectangular jaw made of brass wire. 5" long. Will hold up to 1" diameter tubes (25mm)
Self-closing with rectangular jaw made of brass wire. 5" long. Will hold up to 1" diameter tubes (25mm)
Black bristle. Double tufted end. 1 3/4" brush diameter. 16" overall length.
Black bristle. Double tufted end. 1 3/4" brush diameter. 16" overall length.