0.
General The H-4145 and H-4146 Permeameters are designed for performing either constant head or falling head permeability tests on undisturbed, remolded or compaction soils. The units consist of a standard compaction mold and collar, mounting base with porous stone and brass pipe fitting and head with air escape valve and fitting. Sample Preparation For tests on cohesionless soils, such as sands and gravels the soils are placed in to the mold by a spoon or any other desired method.
and the valve opened to remove all air from the system, he valve is closed after air removal. If a small pressure head is sufficient, the elevation of the water in a pipette may be taken as the headwater elevation. If a large pressure head is required, constant air pressure may be introduced at the top of the pipette and this air pressure head added to the pipette head.
H-4145
H-4146
Warranty Humboldt Mfg. Co. warrants its products to be free from defects in material or workmanship. The exclusive remedy for this warranty is Humboldt Mfg. Co., factory replacement of any part or parts of such product, for the warranty of this product please refer to Humboldt Mfg. Co. catalog on Terms and Conditions of Sale. The purchaser is responsible for the transportation charges. Humboldt Mfg. Co.