ISO 738-2015 pdf free.Coniferous sawn timber- Sizes – Permissible deviations and shrinkage. ISO 738 specifies permissible deviations, due to inaccuracies in sawing, from nominal thicknesses, widths and lengths, for coniferous sawn timber. It also gives, for information, average values for shrinkage for some wood species. It is applicable to unplanned square-edged and unedged coniferous sawn timber having thicknesses or widths in the rangelO mm to 310 mm. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 24294, Timber — Round and sawn timber — Vocabulary 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 24294 apply. 4 Permissible deviations and shrinkage The nominal sizes of coniferous sawn timber are established at an absolute moisture content of 20%. NOTE The absolute moisture content is the moisture content related to the oven-dry mass of the timber, expressed as a percentage. The actual thickness and width of sawn timber having moisture contents greater than 20 % may be…