The phrase "a sample test" is correct and usable in written English.
It can be used when referring to a test that is representative of a larger set of tests, often for practice or evaluation purposes.
Example: "Before the final exam, the teacher provided us with a sample test to help us prepare."
Alternatives: "practice test" or "mock test".
The American distance runner Bernard Lagat also had an A sample test positive for EPO in 2003 that was not upheld by the B sample.
He was almost forced to pack up further production when a sample test showed the presence of listeria monocytogenes.
They walked into class, yakked with their friends, listened quietly while the teacher told them to underline important details in the story and then got to work on the short-answer portion of a sample test.
As I walked in, Molina, a bouncy young guy who keeps a pencil tucked behind his ear, was preparing the kids to write short answers about a sample test passage on Nepal.
"If customers are only encouraged to remove and clean aerators prior to drawing a sample test for lead, the public water system could fail to identify the typically available lead contribution from that tap, and thus fail to take additional actions needed to reduce lead exposure in drinking water".
Each of us received a stack of books in English and Chinese, and I flipped ahead to a sample test question: The word "Beerenauslese" on a bottle of German Riesling indicates that the wine is (a) blended from several vineyard sites, (b) sparkling, (c) aged in bottle for a long period before release, (d) made from very ripe grapes.
If the A sample tests positive, the B sample is tested later.
The I.A.A.F., based in Monaco, believes that an athlete should be suspended and an announcement made public after an A sample tests positive.
appeared to violate its own rules, which call for the immediate suspension of an athlete once the A sample tests positive.
He said he had been notified by the United States Anti-Doping Agency on Friday that he had failed an A-sample test on 16 May.
Even when a sample tests high for generic e-coli, however, it does not necessarily signal the presence of salmonella.
