Blue pencil (editing)
The colour is used specifically because it will not show in some lithographic or photographic reproduction processes; these are known as non-photo blue pencils. For similar reasons, sometimes red pencils are used since their pigment will not reproduce by xerography.
The "blue pencil test" is used by courts of law as a method for deciding whether contractual obligations can be partially enforced.
- Macdonald, Marrianne (14 November 1996), "Blue pencil for sex and violence in BBC code", The Independent, retrieved 2009-05-04
- Goodley, Simon, ed. (24 March 2007), "Business diary: By Gum! It's eyes down for a full house in the cinema", The Daily Telegraph, retrieved 2009-05-04
- The Lord Chamberlain's Blue Pencil, The Economist (US), October 1990, retrieved 2009-05-04
|Look up blue-pencil in Wiktionary, the free dictionary.|
- Johnston, John (30 August 1990), The Lord Chamberlain's Blue Pencil, Hodder & Stoughton, ISBN 978-0-340-52529-6
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