grab sample

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Noun1.grab sample - a single sample or measurement taken at a specific time or over as short a period as feasible
sample - a small part of something intended as representative of the whole
statistics - a branch of applied mathematics concerned with the collection and interpretation of quantitative data and the use of probability theory to estimate population parameters
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One selected grab sample taken from the occurrence assayed 5.52% Cu, 0.188 g/t Au, and 8.5 g/t Ag.
Meanwhile, a grab sample from float assayed 30.1% copper and 595 g/t silver which was close to channel samples.
A sample can be collected manually as a grab sample in the field and transported back to a laboratory for analysis, or with an automatic sampler, retrieved at a later time and analysed in a laboratory.
The POCISs samples were placed in the same location and time as the grab sample was collected.
In 2005 and 2006, 142 grab sample stations and 105 drop video transects were sampled in the nearshore area of the two study areas using a small open-deck speedboat piloted by a community member (Fig.
In the case of studies requiring grab sample processing, limiting identifications to higher taxonomic levels can represent a substantial savings in terms of sample processing times and costs.
MCHD staff visited each system and took a grab sample from the sampling point.
The recently acquired Thelon properties are of particular interest including the Muskox Hill portion of the Northwest Block where prior exploration identified a hematized fracture zone in gneissic basement rocks close to the Thelon uncomformity which assayed an extraordinary 14.68 per cent U308 from one grab sample.