BS 5261-3 standard is a part of the BS 5261 series that discusses the specification for marks for mathematical preparation and mathematical proof correction and their uses for copy preparation and proof correction.
BS 5261-3 specifies marks for use in the preparation of mathematical copy and the correction of mathematical proofs. Marks specified in BS 5261-2 are not repeated here unless they have some special application in mathematical work.
BS 5261-3 on mathematical copy preparation and proof correction applies to:
BS 5261-3 provides you with the guidance on copy preparation which is typed as double spaced. The minimum margins are 25 mm at the head and foot and on the right of the page and 40 mm on the left. The textual and marginal marks used for a marking-up copy are those marked with the letter M. The marginal marks marked with the letter P are not used unless they are necessary to clarify the instructions.
For proof correction, BS 5261-3 provides the textual and marginal marks used in correcting proofs. For each correction a distinct mark is made:
Overall, BS 5261-3 provides you with comprehensive guidance for the marks for mathematical copy preparation and mathematical proof correction and their uses.