Discussion
An earthenware body absorbs 12 per cent water and a porcelain 0.2 per cent. How many times more water does the earthenware take up?
Answer: B
Dividing 12 by 0.2 gives 60. Water absorption is the standard test that separates the classes of whiteware and appears directly in the product standards. Absorption is measured by boiling a fired test piece and weighing it.
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