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LENGTH COMPARATOR -IS 9459, IS 4031, ASTM C490

LENGTH COMPARATOR -IS 9459, IS 4031, ASTM C490

Model Number : TM-101D

Compliance Standards: IS 4031, IS 9459, ASTM C452, ASTM C151, ASTM C490, The apparatus consist of an adjustable length comparator with Digital dial micrometer of 0.001 X 10 mm, together with a suitable reference bar.

Compliance Standards:

IS 4031, IS 9459, ASTM C452, ASTM C151, ASTM C490


Application:

To measure length change in hardened cement paste, mortar and concrete, using a suitable micrometer.


Apparatus Details:

  1. The instrument consists of channeled base, over which two vertical pillars are fixed.
  2. The vertical pillars are threaded for adjustment.
  3. An adjustable cross plate is at the top.
  4. A DIGITAL dial gauge, reading to 0.001 mm x 10 mm is fixed to the top.
  5. The plunger end of the dial Gauge can be located up on a 6 mm diameter ball or other reference point cemented in the specimen.
  6. On the base there is a similar recessed seating, in which, can be placed a second ball or reference point in the specimen.
  7. Complete with a stainless steel standardization bar with insulated grip and with 6.00 mm diameter ball mounted in the ends. (ASTM C490: Ball diameter: 6.35 mm (0.25 inches).)
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Length Comparator-Dial Gauge-IS 9459, IS 4031