spot test

American  

noun

1. an informal test run without elaborate preparation in order to obtain an immediate sample response.

2. Chemistry.  a test for the identification of an element or compound by means of a reagent that produces a characteristic color change or precipitate.

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Etymology

Origin of spot test

First recorded in 1925–30

Example Sentences

The couple are backing a campaign by the charity SMA UK, which wants the disease to be added to a blood spot test that already checks newborn babies for 10 rare but serious conditions.

From BBC

A cheek swab test would be used to look for the SRY gene, while a dried blood spot test could also be used to determine an athlete's testosterone levels - in addition to the presence of the SRY gene.

From BBC

The team are also hoping to secure funding to create a simpler blood spot test where a drop of blood can be spotted on a card and posted to the lab to investigate if it can predict Parkinson's disease even earlier than the seven years before the onset of symptoms in this study.

From Science Daily

And as always, do a spot test first.

From Salon

If the material will be ok with it — don't forget about that handy spot test — using a protectant like the Scotchgard Fabric Water Shield to keep liquid-based stains from ever settling in on your furniture could be a great first line of defense.

From Salon