acid test

One senior source says, “no return to some form of austerity, that is the acid test – we all understand the inheritance, but there are different ways of raising money”.

But an acid test lies in wait for Celtic against Borussia Dortmund on Tuesday.

It is this issue of pinch points which will be the acid test of the VAT policy in Edinburgh.

Lactic acid tests have a number of important applications.

The machine might even put supersymmetry to the acid test.