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…

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…

Waxes with 250 or less penetration; ASTM D1321; Hardened stainless steel wax penetration needles with tapered point, blunt tip of truncated cone. Ferrule is approx. 3.2mm dia. Wt. 2.5g.

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

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.

Penetration Needle, ASTM D5329 Joint sealant for asphalt & concrete pavements; ASTM D5329, Resilience ball penetration tool. Total wt. 27.5g.

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…

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.

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…

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”.

Similar to the H-8950, this clamp has a phosphor-bronze spring clip attached to an aluminum rod-holding block for thermometers and 2 "v" notches designed to hold the H-1602 ring and stem assembly in an ASTM Softening Point Apparatus, but can be used to suspend other items, such as pitch cubes. The…

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…

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…

Used to accurately and quickly count pendulum swings, bacteria colonies, drops from pipettes, alpha particles, etc. Tallies up to 9999 by one, quickly resets to zero. Mounted in round 2" (51mm) diameter chrome plated case with finger ring.

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.…

Flat-bottom, straight-side seamless aluminium box has tight fitting cover, which fits bottom of box as well. Protects sample from exposure during storage and weighing operations. Sold individually.

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).

The Tirril Burner with Pilot Flame (ASTM D3713) supports the following standards: ASTM D3713 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. Provides separate control of both…

Wire Models and Extension Rings Wire Models Formed, bright basic wire circle is welded to shank (except 2" size). Aluminum muff. Attaches to support rods up to 3/4" (19mm) in diameter. Extension Rings Shank of Extension Ring clamps to support rods with clamp holder.…

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…

Removable sliding shelf is perforated to permit collection of gas samples in inverted gas bottles. Sloping sides permit nesting. The standard trough is stainless steel construction with reinforced wire edges and overflow tube. Dimensions are 7" x 10" x 4" deep (178mm x 254mm x 102mm).

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

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

Ring and ball method softening point apparatus used for single determinations, asphalts, pitches, tars and most resins. Includes hotplate, beaker, support stand, 1 ring, wire gauze with ceramic center, thermometer clamp, 1 shouldered ring and stem with hardened steel ball. Meets ASTM D36, E28;…

Center-flanged Pipe Stem Triangles protect glassware on hotplates and over burner flames.

Wire Gauze with ceramic center and turned edges.

Sturdy Tripods featuring adjustable openings through the use of detachable rings.

Distance from center of ring to center of clamp: 4-1/4" (108mm). Plated. Attaches to support rods up to 3/4" (19mm) in diameter.

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…

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.

Measuring firmness of solid and plasticized fats: shortenings, butter, margarine. AOCS Cc 16-60, 20° aluminum cone, 3.2mm ferrule, 0.8mm stainless steel blunt tip. Overall length 106mm. Wt. 45g.

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…