Your supplier of high pressure laboratory instruments

Your supplier of high pressure laboratory instruments

AC-series API conductivity cell

ISO 13503-5, API 56 &58


The conductivity cell is built as per the ISO 13503-5 and API RP 56 & 58 standards. The cell mainly comprises width slats, platens and Ohio sandstone slabs. Three pressure taps permit longitudinal pressure monitoring across the proppant pack. The steel platens are heated by electrical cartridges to ensure isothermal conditions and regulation is governed via a dedicated port, by an in-vessel thermocouple. A thermal insulation mantle is also provided. Four LVDTs (Linear Variable Differential Transformer) are mounted at each side of the API conductivity cell to measure the proppant pack width at different closure stresses.



ISO 13503-5, API 56 &58


1,000 kN (100 tons)

Maximum closure stress

20,000 psi

Maximum pore pressure

1,000 psi


Ambient to 177°C (350°C)

Pack thickness accuracy

+/- 0.001 inches (+/- 0.025 mm)

Sample length

7 inches

Sample width

1.5 inches

Sample height

2 x 3/8 inch

Wetted part material

Stainless steel 


compliant with SO 13503-5 and API RP 56 & 58 standards

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