F.T. Manheim 1968 <p><span>Disposable plastic syringes, fitted with screen discs and circles of filter paper, can be used to extract small amounts of pore water from unconsolidated sediments. A wooden screw frame or large C clamp supplies pressure for field use. Supplementary techniques enable small volumes of fluid to be recovered and handled easily. The Goldberg compensating refractometer provides a useful companion tool for field studies. It can determine, in less than a minute, total dissolved solids in brackish to salt waters to an accuracy of 0.5 parts per thousand on a drop of fluid.</span></p> application/pdf 10.1306/74D71A23-2B21-11D7-8648000102C1865D en American Geological Institute Disposable syringe techniques for obtaining small quantities of pore water from unconsolidated sediments article