gross sample

gross sample

[¦grōs ′sam·pəl]
(analytical chemistry)
One or more increments taken from a larger quantity of a material that is to be analyzed. Also known as bulk sample; lot sample.
References in periodicals archive ?
The gross sample weight was determined using a digital analytical scale ([+ or -] 0.1 mg).
The gross sample amounting over 240 kg was collected from a coal pile according to the guidelines described in ASTM D-2234 and ASTM D-6883 then crushed to -38.00 mm and divided into four parts after mixing properly.
TABLE 1 Non-response by cause, for the six study countries Households with telephone numbers Finland Sweden Gross sample: number of telephone numbers 2927 2435 Not relevant (not in the net sample): Not in the target group 18-64 years of age 640 (1) 425 (2) Not speaking the native language or speaking or learning difficulties 30 59 Wrong number (disconnected, referring to another number), number does not exist 429 284 Fax/modem/business number 14 35 No interview, but appointment made for callback -- -- Net sample 1814 1632 Non-response: 811 595 Incomplete interviews (quit) 3 8 Not available, no answer, others 99 (1) 244 (2) Answering machine 45 4 Refuse on principle (incl.
The coefficient estimates are reported in columns 2 and 3 for analysis with and without a gross sample selection correction.
The gross sample was crushed and divided into four quarters by coning and quartering.
For the collection of gross sample, four points were selected in each coal pile in such a way that the pile was divided into four equal parts by drawing two perpendicular lines on its top surface and the centre of each quarter was selected as one of the four sampling points.