Adjustable Band Clamps provide a unique and efficient clamping mechanism for objects of any shape and size. The same clamp can be used to handle a gallon container or fit snugly to hold a small thermometer, reducing the need to stock numerous clamp sizes and reducing time spent looking for the…

These noiseless burners provide a clear flame of any desired height from 1/2" (12.7mm) to 12" (305mm), with separate control of both flame temperature and flame length. The burners incorporate threaded aluminum air control sleeves and precision machined, fine-pitch brass needle valves…

Hardened alloy tool steel, for crushing hard, brittle materials such as ores, minerals, etc. Mortar 76 mm diameter x 25 mm high Cavity 30 mm diameter x 9.5 mm deep, fitted with precisely machined, removable sleeve for holding crushed material in cavity Pestle 76 mm long x 25 mm…

With a full 360° jaw rotation, this fully adjustable clamp is ideal for attaching to rods up to 3/4" (19mm) in diameter. The clamp has an aluminum muff with steel thumbscrew and phosphor bronze jaws. The maximum distance from the jaw to the muff is 4-3/8" (111mm) and the overall length is 5-1/2" (140mm).

Humboldt Aspirator Filter Pumps offer excellent performance for vacuum filtrations under both high and low water pressure conditions. The pumps feature a ball-type, positive-action valve in the suction tube which prevents water backflow if the pressure is reduced.

With corrugated tips and spot-welded joint. Overall length is 5" (127mm). Available in Nickel-plated steel or Stainless Steel.

1196Y26: Wooden handle and horsehair bristle. Bristle length is 2-1/2"x 1"x 3/8" (64mm x 25mm x 10mm) and overall dimension is 10-1/2" (267mm). 1196Y28: Wooden handle and horsehair bristle. Bristle length is 1-1/2" x 1-1/4" diam. (38mm x 32mm), and the overall dimension is 5-1/4" (133mm).

1196Y59: Flexible stainless steel blade with straight edges and rounded ends. Blade is riveted into wooden handle. 4" long, straight-edge spatula, 3/4" x 4" (19mm x 102mm). 1196Y60: 6" long, straight-edge spatula, 7/8" x 6" (22mm x 152mm). 1196Y61: 6" long, straight-edge spatula, 1/2" x 6"…

This burner features a removable nozzle with perforated tip and orifice designed to aim a large, hot, pointed flame in a modified M.I.T. pattern with great accuracy. A universal ball joint positions the flame easily for working large pieces of hard glass. Separate needle valves with leak-proof…

Designed to allow users to mount rod vertically or horizontally. The clamp is cast iron with a black enamel finish.

Measures feature convenient handle and graduations in milliliters and ounces on inside of cup.

The Humboldt Mfg. Co extra long tong is suitable for use in research facilities and chemical laboratories while conducting experiments. It is made of high quality material which ensures long lasting usage.

Flat round edge nickel-plated steel wire jaw construction.

Designed to safely and conveniently secure compressed gas cylinders in an upright position. Accommodates cylinders 4-1/2" to 11" (114mm to 279mm) in diameter. The heavy-duty clamp with adjustable thumbscrews fits conveniently on any bench up to 2" (51mm) thick without marring the surface.

Bowl Vol./Water (oz/cu. in.): 3.3 (6.1), Length: 5" (114mm), Width: 2-1/2" (63mm), Depth: 1" (25.4mm), Overall Length: 9" (228mm).

Max. opening 1-7/8"(48mm), Stainless Steel, 1/4"(6mm) Wire Size, 9"(229mm) length

The Humboldt Mfg. Co beaker tong, extra long breaker tong and replacement ceramic sleeves are suitable for use in research facilities and chemical laboratories while conducting experiments. They are made of high quality material which ensures long lasting usage.

Nickel crucibles constructed from pure heavy sheet nickel. They are suitable for fusions, including those with sodium peroxide, and are highly resistant to dilute alkalies. Flat-style nickel crucible covers with depression in center for centering on crucibles. Extension on one side for handle.

Designed to attach to a tabletop or inverted into a recessed hole for flush mounting. Models are available with either a threaded hole completely through the center or with an unthreaded thru-hole. These die-cast units are supplied without rod. Other sizes are available on request with threaded or…

The Humboldt Medium, Riffle-type Sample Splitter supports the following standards: ASTM B215, ASTM C136, ASTM C702, ASTM C778, ASTM D421, ASTM D424, ASTM D457, ASTM D806, AASHTO T27, AASHTO T144, AASHTO T248 Humboldt, Riffle-type sample splitter can be used to divide or halve dry materials such…

Designed to allow users to mount rod vertically or horizontally. The clamp is cast iron with a black enamel finish. Supplied complete with a 3/8" x 20" (10mm x 508mm) rod (H-21350) or a 1/2" x 24" (13mm x 610mm) rod (H-21360).

The Cork Press is a rotary compression device used for softening and tapering corks ranging in sizes from 0 to 22. The unit is cast aluminum and can be wall or bench mounted. Overall dimensions: 10-3/8" W x 5-3/8" H x 3-1/4" D (264mm x 137mm x 83mm).

The Table Clamp is designed to support meter sticks and other round or square rods, either vertically or horizontally up to 1" (25mm) thick. The Vee's are milled at right angles and the clamp can be mounted on table edges up to 1-3/4" (45mm) thick. Each jaw can be adjusted separately. Heavy cast…

Economy Sieve Shaker, which complies with ASTM C136 Standards, the Humboldt Motorized Sieve Shaker can be used with 3", 5" and 8" sieves. 1/4 HP motor handles up to (10) 8" sieves, (12) 5" sieves and (16) 3" full-height sieves; and, (18) half-height 8" sieves. 1/4 HP motor, 115V, 60Hz with 30…

The Humboldt, Enclosed Model, Riffle-type Sample Splitter supports the following standards: ASTM C702, ASTM D410, ASTM D3013, ASTM D3176, ASTM D3180, AASHTO T248 Humboldt, enclosed model with drawer pans, Riffle-type sample splitter can be used to divide or halve dry materials such as cement,…

The Humboldt, Small, Riffle-Type Sample Splitter supports the following standards: ASTM B215, ASTM C136, ASTM C702, ASTM C778, ASTM D421, ASTM D424, ASTM D457, ASTM D806, AASHTO T27, AASHTO T144, AASHTO T248 Humboldt, Riffle-type sample splitter can be used to divide or halve dry materials such…

This hand-operated centrifuge is ideal for rapid settling of suspended solids from small quantities of liquid in analytical or clinical procedures at speeds up to 2000 RPM. The hand crank and steel worm with bronze spiral gear is set at a 15 to 1 ratio. The long-sweep crank is detachable and…

Wire gauze squares with turned edges. Material: Nickel Steel Alloy

Steel, nickel plated, polished, 3/16" (5mm) Wire Size, 18" (457mm) length.

The Humboldt Funnel Support is designed to accept up to four funnels. The unit consists of a hard wood support with four slotted holes and a metal clamp with thumbscrew for support rod mounting.

The Single, Softening Point Apparatus Set supports the following standards: ASTM D36, E28, AASHTO T53 Ring and ball method softening point apparatus used for single determinations, asphalts, pitches, tars and most resins. Includes burner, beaker, support stand, 1 ring, wire gauze with ceramic…

The "Hoffman Type" Electrolytic Support is used with associated glassware to demonstrate the electrolytic decomposition of water, hydrochloric acid, and other solutions. The unit consists of a cast iron base (H-21225) with insulated binding posts, support rod (H-21360), one burette clamp (H-8022),…