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Thick sheet steel/Brass with wooden handle to accept tubes up to 33 mm. diameter
Home / Chemistry - General & Chemical Laboratory Apparatus

PM-761 TEST TUBE HOLDER, STEEL/ BRASS

  • Spring steel wire holder, nickel plated to take tubes up to 70 mm. diameter. Ring in the side arms for easy pressing and holding Cat. No. Length x birth x thickness 762.01 100 x 100 x 12 762.02 150 x 150 x 15
  • TEST TUBE HOLDER, WOODEN

Thick sheet steel/Brass with wooden handle to accept tubes up
to 33 mm. diameter

SKU: PM-761 TEST TUBE HOLDER, STEEL/ BRASS Category: Chemistry - General & Chemical Laboratory Apparatus
  • Spring steel wire holder, nickel plated to take tubes up to 70 mm. diameter. Ring in the side arms for easy pressing and holding Cat. No. Length x birth x thickness 762.01 100 x 100 x 12 762.02 150 x 150 x 15
  • TEST TUBE HOLDER, WOODEN
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  • 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 PM-776 BRUSH - BRASS
  • 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. PM-80 BAROMETER FORTIN
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