共找到 1301 条与 木材、原木和锯材 相关的标准,共 87 页
1.1 This International Standard specifies international methods of measuring defects of sawn timber of broadleaved species, classified in ISO 2299, Sawn timber of broadleaved species—Defects—Classification. 1.2 This International Standard covers unplaned sawn timber and sawn timber surfaced to size or planed but without profiling.
Sawn timber of broadleaved species -- Defects -- Measurement
Structural timber - Determination of characteristic values of mechanical properties and density; German version EN 384:2016
Durability of wood and wood-based products - Testing and classification of the durability to biological agents of wood and wood-based materials; German version EN 350:2016
Determination of average width of annual rings for wood
Standard practice for construction of connections between glued-laminated timber members
Physical and mechanical properties of wood - Test methods for small clear wood specimens - Part 14: Determination of volumetric shrinkage
Durability of wood and wood-based products. Testing and classification of the durability to biological agents of wood and wood-based materials
Structural timber. Determination of characteristic values of mechanical properties and density
This document specifies a method for the determination of linear shrinkage in the radial and tangential directions ofwood.
Physical and mechanical properties of wood - Test methods for small clear wood specimens- Part 13:Determination of radial and tangential shrinkage
Structural timber - Visual strength grading of tropical hardwood; German version EN 16737:2016
适用于沉香生产
Technical Regulations for Agarwood Agarwood Whole Tree
This European Standard gives a method for determining characteristic values of mechanical properties and density, for defined populations of visual grades and/or strength classes of machine graded structural timber. Additionally it covers the stages of sampling, testing, analysis and presentation of the data. The standard provides methods to derive strength, stiffness and density properties for structural timber from tests with defect-free specimen. The values determined in accordance with this standard for mechanical properties and density are suitable for assigning grades and species to the strength classes of EN 338. NOTE 1 For assigning grades and species to the strength classes in EN 338 only three properties, i.e. bending or tension strength, modulus of elasticity parallel to grain in bending or tension and density need to be determined from test data, other properties can be calculated according to Table 2. NOTE 2 EN 1912 gives examples of established visual grades assigned to strength classes.
Structural timber - Determination of characteristic values of mechanical properties and density
This European Standard gives guidance on methods for determining and classifying the durability of wood and wood-based materials against biological wood-destroying agents. The methods can be applied either to individual wood species, batches of wood and processed wood-based materials, including heat-treated, preservative-treated wood and modified wood. However, this standard is not intended to replace testing of the efficacy of biocides. The wood-destroying agents considered in this standard are: - wood-decay fungi (basidiomycete and soft-rot fungi); - beetles capable of attacking dry wood; - termites; - marine organisms capable of attacking wood in service. Data on the biological durability of selected wood species considered of economic importance in European countries are presented in Annex B (informative), which also provides information relating to their geographical origin, density, sapwood width and treatability. NOTE Treatability, durability to disfiguring fungi, permeability to water and performance in use of wood and wood-based materials are also important issues. However, because standardized methods aiming to assess and classify these factors do not exist and/or have not been extensively experienced yet, preliminary guidance is given in Annex C (informative) for the classification of wood treatability with aqueous wood preservatives, Annex D (informative) for the classification of the permeability to water, Annex E (informative) for the durability to disfiguring fungi, and Annex F (informative) for the classification of performance.
Durability of wood and woodbased products - Testing and classification of the durability to biological agents of wood and wood-based materials
Structural timber. Visual strength grading of tropical hardwood
Test method for bonding performance of structural adhesives for finger-jointed materials
Cutting waste of wood - Terms and definitions and mathematical calculation methods
Structural timber - Strength classes; German version EN 338:2016
Structural timber. Strength classes
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