Humboldt

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  • Standard Burner with Air Regulator Only & Flame Stabilizer

    Humboldt

    Humboldt Bunsen Burners are high-quality, American-made burners with nickel-plated, die-cast zinc bases. Burners feature aluminum mixing tubes and serrated gas inlet connections. *Note: CFHs and BTU Outputs are figured on: 5 inch Water Column Pressures for Artificial and Natural Burners. 11…

  • Stainless Steel Measures

    Humboldt

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

  • Screw Compressor Clamp, Closed Jaw (Hoffman)

    Humboldt

    Screw Compressor Clamps are used to control the flow in flexible tubing. The clamps have a machined adjustment screw to permit accurate regulation of the flow. All corners are rounded to prevent cutting of the tubing. The clamps feature brass construction that is plated for corrosion resistance and…

  • Penetrometers

    Humboldt

    Universal Penetrometers Direct-reading instrument for precision penetration measurements of bituminous materials, cement, petrolatum and waxes, as well as food, cosmetics and pharmaceutical products. Unit has 5" diameter indicator dial, graduated in 400 divisions of 0.1mm, corresponding to 40mm…

  • Water Baths

    Humboldt

    The Water Bath supports the following standards: ASTM D6927, D5581, D4867 Water Bath with microprocessor-based temperature control for precise temperature control throughout the range. Similar to the H-1390 Waterbath, but does not include a magnetic circulator. It includes a stainless steel…

  • Deluxe Water Baths

    Humboldt

    The Deluxe Water Bath supports the following standards: ASTM D6927, D5581, D4867 Water Bath with microprocessor-based temperature control for precise temperature control throughout the range. Includes magnetic circulator, ensuring constant water temperature, and, a stainless steel shelf, which…

  • Cork Borer Sets with Handles, Plated Brass Set

    Humboldt

    These inexpensive sets are used to bore holes in corks and rubber stoppers. They consist of plated tubing with precision ground cutting edges. The smooth plastic handles are stamped with a number designation. A punch is included with each set.

  • Electrolytic Support

    Humboldt

    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),…

  • Screw Compressor Clamps: Open Jaw (Hoffman)

    Humboldt

    Screw Compressor Clamps are used to control the flow in flexible tubing. The clamps have a machined adjustment screw to permit accurate regulation of the flow. All corners are rounded to prevent cutting of the tubing. The clamps feature brass construction that is plated for corrosion resistance and…

  • Screw Compressor Clamp, Standard Open-Jaw C-Clamp

    Humboldt

    Screw Compressor Clamp, Standard Open-Jaw C-Clamp without side post. Jaw Opening: 0-7/8" (0-23mm) Max Height, 1-1/8" (30mm) Max Width

  • Burette Clamps

    Humboldt

    Two prong zinc-plated, stamped steel with aluminum alloy holder is adjustable by checknut to any angle Takes objects from 3/8” to 1 3/8” diameter. Fits rods up to 1/2” diameter. Length: 6 3/8”.

  • Cork Borer Sets with Handles, Plated Steel Set

    Humboldt

    These inexpensive sets are used to bore holes in corks and rubber stoppers. They consist of plated tubing with precision ground cutting edges. The smooth plastic handles are stamped with a number designation. A punch is included with each set.

  • Mortar & Pestle

    Humboldt

    Meets U.S. Pharmacopeia XIX. Made from hardened tool steel in accordance with specifications for Powdered Glass Test. Mortar has a flat-bottomed cylindrical cavity. Mortar: 76.2mm. O.D. cavity: 50.8mm dia x 43.9mm deep; Pestle: 50.4mm dia, 108mm overall length, Shipping. wt.: 8 Lbs

  • Portable Penetrometer

    Humboldt

    Lighter and smaller than H-1200 for field work, unit's micrometer adjusts for accurate settings as well as coarse adjustment for approximate settings. Only one additional 50g loading weight is included. Overall dim. 7" x 7" x 16" (178 x 178 x 406mm). Shipping wt. 8 lbs. (3.6kg)

  • High-Temperature Burners

    Humboldt

    When an extremely hot flame is required, these Meker-type burners form uniform blue cones of intese heat with no backflashes. Onepiece, nickel-plated venturi tube. Die cast, zinc alloy, nickel plated octagonal base. *Note: CFHs and BTU Outputs are figured on: 5 inch Water Column Pressures for…

  • Flask Tongs

    Humboldt

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

  • Aluminum Moisture Dish

    Humboldt

    Inverted slip-in cover with beaded edge for tight sealing, can be handled with crucible tongs. Inside dia at top 2-1/4" x 3/4" deep (57mm x 19mm). Drawn aluminum construction.

  • Large Deluxe Water Baths

    Humboldt

    The Large Deluxe Water Bath supports the following standards: ASTM D6927, D5581, D4867 Water Bath with microprocessor-based temperature control same as H-1390, except volume is: 14 gallons (53L) and dimensions are 20" x 20" x 10" deep (508 x 508 x 254mm). Shipping wt. 74 lbs.…

  • Adjustable Micro-Bunsen Burner with Adjustable Gas Valve

    Humboldt

    Humboldt's Adjustable burners utilize the same high-quality die-cast bases as our Standard Burners, but provide a precision needle valve to achieve an accurate, adjustable flame. *Note: CFHs and BTU Outputs are figured on: 5 inch Water Column Pressures for Artificial and Natural Burners. 11 inch…

  • Tirril Burner for Small-Scale Burning Test

    Humboldt

    The Tirril Burner for Small-Scale Burning Test (ASTM D5025) supports the following standards: ASTM D5025 Humboldt's Flame Test Burners are designed to be used as ignition sources for small-scale burning tests, such as the UL flame test and other similar test standards. Supplied complete with…

  • Bunsen Round Jaw Extension Clamps

    Humboldt

  • Sieve Brush, Fine Mesh

    Humboldt

    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).

  • Dish Tongs

    Humboldt

    Handles dishes and other articles from 3 to 4-3/4" (75-120mm), Stainless Steel, 9-1/2" (241mm length).

  • Thermometer Clamps

    Humboldt

    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).

  • Rectangular Enameled Steel Support Bases And Rods

    Humboldt

    With heavy, rectangular base of plate steel, finished in hard enamel Zinc-plated steel rod is machined at lower end with U.S. National coarse thread 508 mm rod is 9.5 mm in diameter with 3/8-16 thread; 610 and 914 mm, 13 mm in diameter with 1/2-13 thread 8835B50 support is furnished…

  • Glass Tubing Cutter

    Humboldt

    Made of nickel-plated zinc alloy, with hardened steel cutting wheels Spring-loaded, to remain open until used For tubes up to 38 mm diameter

  • Crucible Tongs

    Humboldt

  • Hand Centrifuge

    Humboldt

    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…

  • Penetration Needles for Bituminous Material

    Humboldt

    Bituminous materials; ASTM D5; AASHTO T49, IP49; ASA Std., A37.1; Fed Spec. SS.R. 406C, Meth. 214.01, Standard hardened stainless steel needle. H-1280 and H-1300 feature 40-45mm exposed needle lengths; H-1290 features 50-55mm exposed needle length. Wt. 2.5g.

  • Stainless Steel Round Nose Scoops

    Humboldt

    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).

  • Mortar & Pestle for Crushing Hard, Tough Substances

    Humboldt

    Made of hardened alloy tool steel. Pestle has ball-end to fit bottom of mortar cavity. Mortar: 3 x 3 x 4-1/2"H (76 x 76 x 114mm); bore: 2" dia x 3" deep (51 x 76mm). Pestle: 9-1/2" (241mm) overall length. Shipping. wt. 16 lbs. (7.3kg)

  • Ottawa Test Sand for Cube Molds

    Humboldt

    Sand is specially graded natural silica sand graded to retain 98% on a No. 100 (150µ) sieve, 75% on a No. 50 (300µ) 30% on a No. 40 (425µ) and 2% on a No. 30 (600µ). Specific gravity is 2.65 Packed in 50 lbs. (22.7kg) bags

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