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Fears that a new super-strong toilet tissue might clog up Britain’s sewage system have been averted thanks to the swift introduction of a “flushability” test for such products.

The crisis was sparked by Procter & Gamble of Newcastle upon Tyne, which in January launched a fortified brand of toilet tissue. Charmin contains special ingredients which give it “transient wet strength”. This prevents “premature disintegration” of the tissue when it is exposed to small amounts of moisture during use.

Kimberly-Clark of Reigate, Surrey, which makes Britain’s best-selling Andrex brand, cried foul. In a letter sent to Procter & Gamble and also to…

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