litmus paper
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The best way to confirm that the solution is neutralized is with litmus paper.
From Seattle Times ● Nov. 7, 2022
Watson recalls one telling advertising campaign: posters printed on litmus paper that said: “When acid rain is falling, you should see red” – offering a vivid illustration of the problem.
From The Guardian ● Oct. 12, 2020
It is easy enough to say, with Elmer Davis, that eminent piece of journalistic litmus paper, that ex-Communists are bores.
From Time Magazine Archive
But that is not an immutable piece of parchment that judges can apply to laws like litmus paper.
From Time Magazine Archive
Because of its simplicity and fair degree of accuracy, the litmus paper test is still used to a considerable extent in estimating the degree of acidity of certain soils.
From Right Use of Lime in Soil Improvement by Alva Agee
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