composite sample

composite sample

[kəm′päz·ət ′sam·pəl]
(analytical chemistry)
A sample comprising two or more increments selected to represent the material being analyzed.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

composite sample

A sample of material which is obtained by blending two or more individual samples.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
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A composite sample of heavy minerals was consigned for mineral products sighter test-work to Allied Mineral Laboratories in Perth.
The second one was used for the composite sample, with equal aliquots of milk from each milking session (Experiment 1=13.3 mL; Experiment 2=20 mL) which were then mixed in a single sample for analysis; and the third one was used for the proportional sample, that is the volume of the sample in a milking session was proportional to the milk total volume yielded in each session, and then the samples were mixed in a single sample for analysis.
To test the composite sampling technique, 25 plants from each block were selected at random and a small sample of roots and soil from each container was combined into a single composite sample. Phytophthora was identified from each composite sample following standard techniques (outlined above), and then the detection rate was determined.
Make a composite sample from a few areas in the bed and send in for testing.
In this study, the physical geometry refers to the height percentage ([h.sub.r]) of the coal component in a composite sample.
The smaller particle size of CNTs reduces the amount of porosity and dislocations which make the CNTgraphene composite sample more uniform as compared to the pure graphene-based sensor (see Section 3.2).
Staff at the Wildlife Habitat and Nutrition Laboratory, Washington State University, Pullman, Washington, oven-dried (70[degrees]C) and ground (1-mm size) each composite before preparing 4 slides from each composite and examining 25 views per slide for a total of 100 views per composite sample. They identified each forage class (such as shrubs, forbs, grasses, sedge-rushes, and conifers) and all plants >5% of the diet to at least the genus level using epidermal-cell-tissue fragments.
Composite sample of 5 mg were suspended in an [Al.sub.2][O.sub.3] pan at the heating rate of 10[degrees]C/min in nitrogen atmosphere to evaluate the thermal stability of the composite material.
The connected porosity of composite sample was nonacoustically measured using the method of water saturation used by Vasina et al.
A private food testing laboratory tested a frozen mixture of beef and beans, nacho cheese sauce, tortilla chips, and Spanish rice (composite sample) for bacterial toxins and peroxide levels.

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