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BAROMETER FORTIN The Fortin Barometer was commonly used at meteorological stations to measure atmospheric pressure.Accurate measurements of the barometric height, often required in the laboratory, are made with a Fortin barometer The tube containing the mercury is protected by enclosing it in a brass tube, the upper part of which is made of glass so that the mercury surface may be seen. Readings are taken by a vernier moving over a millimetre scale of sufficient length toover the full range of variation in barometric height. The zero of the scale is at the tip of an ivory pointer fixed to the lower end of the brass tube. The mercury reservoir can be raised or lowered by a screw. Before taking a reading of the barometric height, the screw is adjusted until the help of the pointer just touches its image in the surface of the mercury. If the surface of e mercury is dusty, this adjustment can still be made with reasonable accuracy. A Fortin barometer thus measures the height of a column of mercury supported by atmospheric pressure. PVG’s Fortin's barometer consists of a narrow glass tube of length about 90 cm. This tube is closed at one end. The tube is completely filled with mercury and kept inverted in a cistern filled with mercury. The glass tube is protected by enclosing it in a brass tube. Complete apparatus mounted on a wooden base. Supplied without mercury.

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Chemistry - General & Chemical Laboratory Apparatus

PM-80 BAROMETER FORTIN

For cutting thick wires, insulated with thick sleeve. length 135 mm.

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Chemistry - General & Chemical Laboratory Apparatus

PM-800 PLIER SIDE CUTTING

Comprises a borosilicate glass U tube with 225 mm. height, with each limb graduated 0-120 x 1 mm. Bend fitted with a filling tube and stopcock. Two platinum electrodes 14 mm. diameter can be adjusted at any position by locking

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Chemistry - General & Chemical Laboratory Apparatus

PM-801 PLIERS VICE GRIP

Black painted head and handles, with ball and claw ends, bevelled cutting edges. Overall length 200 mm.

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Chemistry - General & Chemical Laboratory Apparatus

CENTRE PUNCH

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Chemistry - General & Chemical Laboratory Apparatus

PM-803 CENTRE PUNCH

For making holes in the leather. Cat. No. Length mm. Hole Size mm. 804.01 100 6 804.02 100 8 804.03 100 10

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Chemistry - General & Chemical Laboratory Apparatus

PM-804 LEATHER PUNCHES

Comprises a borosilicate glass U tube with 225 mm. height, with each limb graduated 0-120 x 1 mm. Bend fitted with a filling tube and stopcock. Two platinum electrodes 14 mm. diameter can be adjusted at any position by locking

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Chemistry - General & Chemical Laboratory Apparatus

HACKSAW JUNIOR

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Chemistry - General & Chemical Laboratory Apparatus

PM-806 HACKSAW JUNIOR

High speed steel tapered blade, suitable for cutting wood and plastic.

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Chemistry - General & Chemical Laboratory Apparatus

PM-807 HAND SAW

Heavy duty, nickel plated steel. Length approx. 200 mm.

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Chemistry - General & Chemical Laboratory Apparatus

PM-808 SCISSOR GENERAL PURPOSE

Both screwdriver and for checking circuit. With neon indicator in the transparent yellow or green plastic handle. With pocket clip. Cat. No. Overall Length mm. 809.01 125 809.02 130 809.03 170 809.04 180 809.05 200

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Chemistry - General & Chemical Laboratory Apparatus

PM-809 SCREWDRIVER MAINS TESTER

For above barometer, polished hard wood case with glass front door and side panels; with lock and key. Overall Dimension : 1175 x 150 x 150 mm.

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Chemistry - General & Chemical Laboratory Apparatus

PM-81 BAROMETER CASE