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Proving Ring Penetrometer

Model HV-EXP171
This is for determining the bearing capacity of sub-grade soilsor for compaction control and meets. The requirements ofASTM 0-420. Consists of sturdy handle under which is tied asensitive proving Ring. An extension piece is fixed on thebottom of the proving ring and caries and detachablepenetration cone an its tip. Proving rings capacity 130 kgsand the .001 mm. dial indica. tor provided indicates thepenetration load applied with senstivity of approx. 1/2 kg.division. A calibration chart Is provided for the proving ring.Instrument is complete In a wooden carrying cas.

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