United Scientific Supplies

BOD Bottles for incubating diluted samples of clean water, waste water, effluent water, and polluted water during the 5 day biochemical oxygen demand (BOD) test. Bottles are unnumbered and feature a penny head stopper.

These uncalibrated specific gravity bottles are excellent for determining the specific gravity of liquids. The borosilicate bottles have a ground stopper joint for a precision fit. Available in 10 ML or 25 ML sizes.

Compact pocket loupe in a sturdy folding metal case. 10x magnification.

The classic method for demonstrating and measuring the small force experienced by a conductor carrying an electric current in a magnetic field. One half of the balance is placed inside a solenoid. The other half has an adjustable counterweight and can carry light additional masses. When current is...

100 strips each in matching color plastic vials. Individual strips are approximately 2" long and 1/4" wide.

Polypropylene Y-shaped connectors with serrated ends are ideal for leak-proof tubing connections. Autoclavable.

Made of silicone rubber and features special grips to prevent containers from slipping. Ideal for gripping hot objects such as beakers, flasks and bottles.

Sturdy, economical, and convenient racks for samples stored in vials. Autoclavabale at 120°C for 20 minutes. Can be stacked when not filled, for easy storage. Each well features a drainage hole at the bottom.

Six 25mm holes, six drying pins, with a 1/2" thick base. Solid hardwood construction. Polished to minimize damage from spills.

Heavy wall filtering flask includes a bolt neck with tubulation. Borosilicate glass flasks are designed to give the best combination of thermal shock resistance and physical strength. Feature heavy-duty rims and printing in durable white enamel.

A comprehensive set of mechanical vibration and wave motion apparatus based on a sturdy, reliable vibration generator that can be used with any frequency generator that can deliver a signal of up to 1A. The piston delivers an amplitude of up to 7 mm, depending on the load and frequency. The...

Color-reaction or spot plates, glazed except for bottom surface. Thermal Shock Resistance - average coefficient of expansion from 20° C to 200° C is 3.56 x 10-5, gradually increasing to 4.69 x 10-5 at 1050°C. Every batch of porcelain is heat tested in our factory. Glaze - No softening...

Molded in Polypropylene, this flask stand gives a stair-like top view. Every step provides excellent support to the round bottom flask at every point of contact. This flask stand can hold round bottom flasks up to 10,000ml capacity. This stackable flask stand can also be autoclaved.

Designed for particulate or biological contamination analysis of small volumes using a vacuum filter. Includes a fritted glass filter support and No. 5 perforated silicone stopper for easy attachment to a vacuum filtering flask. Membrane filters are not included. Thick prefilters or laminated...

Plastic 6" long flashlight includes long-lasting LED illumination and lanyard. Uses two AA batteries (not included). Assorted colors.

Moulded in Polypropylene, Spatula consists of a spoon on one side while the other end is a flat construction with a knife edge. This edge is helpful in breaking up crystals of different salts while the spoon is used to draw salts from the containers.

Self-zeroing burette mounts on a glass bottle. Includes a PTFE needle valve stopcock, intermediate stopcock and rubber bellows. Class A, ASTM E-287, meets USP standards, individually serialized and certified. Includes Schellbach backing for easy reading of liquid levels. With amber graduations....

These clear non-vacuum desiccators are manufactured from soda lime glass and include a lid with a molded-in knob. Clear glass provides excellent visibility . The rims of the desiccator and lid are ground glass and require greasing before use to create an air-tight seal. Also includes a perforated...

United high alumina crucibles are made of 99.7% pure aluminum oxide. Highly resistant to chemical attack. Recommended for chemists, metallurgists and others involved in high temperature work demanding contamination free results.

This dropper bottle is made of translucent and low density polyethylene. Bottle can be used with or without dropper.

Unibody construction from sheet nickel, polished inside and out. Can withstand temperatures up to 600°C. Covers included.

Burettes with Screw Thread (PTFE) stopcocks are made from the highest quality, accurate bore tubing to provide a high degree of accuracy, reliability, and durability. Accuracy per Class "A", ASTM E-287. Meets USP Standards, Serialized and Certified, Blue Graduations.

Vacuum adapters have 24/40 joints. Bent adapter has a 105° angle between the top outer joint and bottom inner joint. Straight adapter has a top outer joint and bottom inner joint. Both adapters have 24/40 joints and include a 3/8" hose connector.

These handy short form jugs, molded in polypropylene, are clear, autoclavable and have good chemical resistance. All sizes have handles for convenient lifting, and feature raised graduations.