![Methods for determining optical properties of pulp, paper and board. Part 3, Measurement of the ISO opacity (paper backing) of paper; [metric units]](/img/books.png)
Methods for determining optical properties of pulp, paper and board. Part 3, Measurement of the ISO opacity (paper backing) of paper; [metric units] by British Standards Institution. ISBN 0580050378. Published by B.S.I in 1969. Publication and catalogue information, links to buy online and reader comments.