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Standard Penetrometer

Introduction:

A depression made in the sample by a needle weight which is measured in tenths of a millimeter and expressed, as penetration number. A standard needle penetrated vertically under surcharge weight 50 gm into a sample under test temperature at 25°C for 5 second of duration. This test determine the consistency and thereby the grade of the bitumen.

Specification:

  • The apparatus is available in two versions, hand operated and electrically operated with automatic timer. The apparatus consist of a cast aluminum base with an iron stand on which moves an aluminum arm. A 6” dial is fixed on this arm and a brass chromium plated rod slide through the lower portion of the arm. A needle with weight is fitted to this rod. The dial is graduated from 0-400 in one tenth millimeter sub division. Supplied complete with adjustable needle holder, penetration needle, sample container, transfer dish and weight of 50 gm.
  • The automatic model is supplied with automatic digital timer and electrical arrangement to carryout the test without need of stop watch and with great ease and accuracy.
  • Automatic penetro meter with LVDT and auto timer can be supplied with indication of time and penetration in digital mode.

Optional accessories:

  • Constant temperature water bath EIE 403/ 406.
  • Glass thermometer,
  • Electric hot plate.
  • Spare bitumen container 55 mm x 35 mm
  • Spare container 70 mm x 45 mm.
  • Enamel tray.
  • Stop watch mechanical/ digital.
  • Spare penetration needle.
  • Spare weight 50 gm.

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Standard Penetrometer

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Tags: bitumen testing

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