Abstract: An apparatus and process for obtaining an aliquot of serial liquid samples. A measured aliquot of each serial liquid sample is obtained and passed to an aliquot storage chamber with discard of the remainder of each liquid sample. A liquid collection container is provided sufficiently large for the largest single liquid serial sample with a generally vertical aliquot measurement container forming at least one aliquot measurement chamber. Each aliquot measurement chamber has a cross-sectional area in the same relation to the cross-sectional area of the liquid collection chamber as the quantity of each aliquot that is desired to bear to the liquid samples. The bottom of each aliquot measurement container is in the same general horizontal plane as the bottom of the liquid collection container.

Abstract: An apparatus and process for obtaining an aliquot of serial liquid samples. A measured aliquot of each serial liquid sample is obtained and passed to an aliquot storage chamber with discard of the remainder of each liquid sample. A liquid collection container is provided sufficiently large for the largest single liquid serial sample with a generally vertical aliquot tube forming at least one aliquot measurement chamber, each aliquot measurement chamber having a cross-sectional area in the same relation to the cross-sectional area of the liquid collection chamber as the quantity of each aliquot is desired to bear to the liquid samples and having a bottom in the same horizontal plane as the bottom of the liquid collection container.

Abstract: A portable, self-contained, cummulative elapsed time recorder unit for personal use which records and stores data representing time spent by an individual working on each of a number of different work assignments, to provide a time record for billing purposes. The recorder unit includes a counter which is incremented when the unit operates in a timing mode to record a time element representing time spent working on an assignment, and a memory having a plurality of data storage locations, each assigned to a different work assignment for storing the time elements, the data storage locations being individually addressable by manually operable select switches. The recorder unit includes a display unit which provides a numerical display of the data stored at a selected memory location while the unit is operating in the display mode.