This standard is applies to coniferous sawn timber for components, which must be measured according to their strength. It specifies grading characteristics and classes as a precondition for the specification and application of calculation values for the verification of limiting strength and usability according to DIN 1052 or Din 1074. Grading can be done by two methods: - visually with grading classes (according to clause 6); - visually with support of technical appliances (according to clause 7). For special use of timber special standards are applicable regarding the strength grading : DIN 68326 and DIN EN 131-2 for wooden ladders, DIN 15147 for flat pallets. In the presented Amendment footnote a in Table 2 was deleted in order to create the necessary preconditions to enable the European application of the current DIN 4074-1:2008-12 and to realize its inclusion in EN 1912. This was not possible so far as a proof was missing to which European strength classes the classes S 7 and S 10, being altered by footnote a, can be assigned to.
Số hiệu tiêu chuẩn
DIN 4074-1
Tên tiêu chuẩn
Strength grading of wood - Part 1: Coniferous sawn timber
Ngày phát hành
2012-06-00
Tiêu chuẩn tương đương
OENORM DIN 4074-1 (2012-09-01), IDT * CSN 73 2824-1 (2015-01-01), NEQ
Tiêu chuẩn liên quan
DIN 15147 (1985-07) *
DIN EN 844-6 (1997-08) * DIN 1052 (2008-12) * DIN 4074-3 (2008-12) * DIN 4074-4 (2008-12) * DIN 68362 (1995-06) * DIN EN 131-2 (2010-10) * DIN EN 336 (2003-09) * DIN EN 1310 (1997-08) * DIN EN 1995-1-1 (2010-12) * DIN EN 14081-1 (2011-05)
Từ khóa
Classification systems * Classifications * Construction * Construction materials * Definitions * Designations * Dimensions * Load capacity * Marking * Quality * Quality assurance * Quality condition * Sawn timber * Softwoods * Sorting classes * Structural timber * Timber in logs * Visual * Wood * Wood technology