Standards: ASTM D 1558
This proctor is used to determine in field the moisture penetration resistance relationship of fine grained soils.
Spring load scale 0-55 Kg, subdivided.
1 kg, with direct max. value reading in kg. on the sliding rod.
Complete with 9 interchangeable stainless steel needles dia. 4,52 5,23 - 6,40 - 9,07 - 12,83 - 16,54 - 20,22 - 24,79 - 28,55 mm.
Accessories : carrying case.
Weight: 8 Kg