product number: BS-1013
product name: Permeability Test System
specification: ASTM D5084;BS-1377
producing area: U.S.A.
Permeability/Hydraulic Conductivity
Permeability testing measures the rate of discharge of water under laminar flow conditions through a unit cross-sectional area of a porous medium under a unit hydraulic gradient and standard (20℃) temperature conditions. In permeability testing, soil is subjected to water under a known pressure, and the flow is measured. The coefficient of permeability (k), or simply permeability, expresses the ability of water to flow through the particular medium. The "Constant Head" test method is applicable to course granular soils such as sands and gravels. The "Falling Head" test method is applicable to fine grain soils. Either method may be used to test clay soils.
Fast and Easy Setup and Operation
Humboldt FlexPanels make setup fast and easy with clearly labeled ports and quick-connect hookups. Operation is just as easy with clearly labeled controls, large gauges and easy-to-read burette markings.
All Humboldt FlexPanels use no-volume change Swagelock valves and Fairchild constant-bleed type precision regulators for accurate control. All inlets and outlets utilize quick-connects to ensure fast, accurate setup to permeater cells, as well as air, water and drain hook ups. Fittings, tubing and connectors are supplied with each unit. All FlexPanels are designed to handle air pressures up to 150 psi. For testing contaminated samples, Humboldt offers an optional Toxic Interface Unit, which prevents toxic fluids and vapors from entering the FlexPanel.
• Bias pressure regulator allows simultaneous control of confining and back pressures, while maintaining a constant differential
• Longer Burette and 0.02ml graduation give more accurate results, better productivity, and faster turnaround
• Cost efficient, expandable system
• Uses no-volume-change Swagelock valves
• Bridge feature delivers simultaneous control of base and top pressures by adjusting one pressure regulator
• Quick-connect hookups for fast and reliable set up.
• Master control panel houses digital pressure readout for the controlling pressure, inlet vacuum regulator & gauge, inlet pressure regulators and gauge, de-aired water tank controls, tap and de-aired water supply outlets, and pressure & vacuum outlets
• Humboldt's bridge and bias controls simplify testing
• Long burette design provides a highly accurate scale, as well as faster test response and results
• Lightweight, aluminum frame is extremely durable and resists rust
• Complies with ASTM D5084; BS 1377 Part 6 1990.
