79.040 木材、原木和锯材 标准查询与下载



共找到 1301 条与 木材、原木和锯材 相关的标准,共 87

本标准规定了利用生长锥取样测定木材密度的设备、方法和测定结果与报告等要求。 本标准适用于木材密度的测定。

Method for Determining Density of Wood from Growth Cone Sampling

ICS
79.040
CCS
B69
发布
2018-03-28
实施
2018-06-28

This European Standard specifies the methodology for measurement of features - in relation to wood structure, biological agencies and other damage - taken into account in the visual grading: a) for appearance - of sawn, processed and round timber; b) for serviceability - of sawn and processed timber (identified in EN 1611-1 as the integrity of the timber). When the standard is applied the methodology of measurement used shall be stated. It is not applicable to structural timber for which strength grading in accordance with EN 14081-1 is required. This standard applies to hardwood and softwood sawn timber, both square edged and un-edged, to processed timber and to round timber. It does not apply to tropical timber.

Round and sawn timber - Methods of measurements - Part 3: Features and biological degradations; German version EN 1309-3:2018

ICS
79.040
CCS
B69
发布
2018-03-01
实施

This document defines requirements to methods of determination of visual characteristics of round timber.

Round timber - Visual characteristics - Methods of determination

ICS
79.040
CCS
B68
发布
2018-03-01
实施

本标准规定了木杆树种、尺寸、材质指标、检验方法及材积计算等。 本标准适用于全国木材生产、流通领域的农具、工具、棚架、木制构件及矿扒条用料等。

Wood pole

ICS
79.040
CCS
B69
发布
2018-02-27
实施
0000-00-00

Round and sawn timber - Methods of measurements - Part 3: Features and biological degradations

ICS
79.040
CCS
发布
2018-01-01
实施

This European Standard defines a method of assessment of drying quality. It applies to a lot of dried sawn timber (surfaced or not). It applies to both softwood and hardwood with a thickness not greater than 100 mm. The quality of drying is expressed in terms of target and average moisture content of the lot as well as defining the moisture content variation between individual pieces expressed as allowable upper and lower limits. An option for specifying the degree of case-hardening is included. NOTE 1 Other features related to drying, e. g. checking, distortions, stain, etc., are specified in documents for visual grading of sawn timber or in product specifications and are not covered by this document. NOTE 2 In the following the term sawn timber is used for all dried timber covered by this the scope.

Sawn timber - Assessment of drying quality; German version EN 14298:2017

ICS
79.040
CCS
B69
发布
2018-01-01
实施

Aircraft wood. Inspection rules and control methods

ICS
79.040
CCS
发布
2018-00-00
实施
2019-04-01

Method of dowel-bearing strength test for wood and wood-based products

ICS
79.040
CCS
发布
2017-12-13
实施

1   Scope This British Standard specifies a methodology for the visual strength grading of softwood for structural use. The permissible limits of characteristics are specified for two visual strength grades of softwood: • GS ‒ General Structural; and • SS ‒ Special Structural. Text deleted

Visual strength grading of softwood. Specification

ICS
79.040
CCS
发布
2017-11-30
实施
2017-11-30

Sawn timber. Assessment of drying quality

ICS
79.040
CCS
发布
2017-11-20
实施
2017-11-30

This document establishes the basic principles for rules and procedures governing the machine sorting of timber for use in structural applications. This applies to conventional bending type strength-grading machines as well as more recent machines that use other properties for strength-grading purposes.

Structural timber - Machine strength grading - Basic principles

ICS
79.040
CCS
B68
发布
2017-11-01
实施

This document specifies a method for determining the ultimate stress in compression parallel to grain of wood.

Physical and mechanical properties of wood - Test methods for small clear wood specimens - Part 17: Determination of ultimate stress in compression parallel to grain

ICS
79.040
CCS
发布
2017-10-27
实施

1.1 These test methods cover the determination of the density and specific gravity (relative density) of wood and wood-based materials to generally desired degrees of accuracy and for specimens of different sizes, shapes, and moisture content conditions. The test method title is indicative of the procedures used or the specific area of use. Section Test Method A—Volume by Measurement 8 Test Method B—Volume by Water Immersion 9 Test Method C—Flotation Tube 10 Test Method D—Forstner Bit 11 Test Method E—Increment Core 12 Test Method F—Chips 13 Test Method G—Full-Size Members 14 1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Standard Test Methods for Density and Specific Gravity (Relative Density) of Wood and Wood-Based Materials

ICS
79.040
CCS
发布
2017-10-15
实施

1.1 This practice covers sampling and analysis procedures for the investigation of specified populations of wood and wood-based structural products referred to in this standard as products. Appropriate product standards should be referenced for presentation requirements for data. Depending on the interest of the user, the population from which samples are taken may range from the products produced at a specific manufacturing site to all the products produced in a particular grade from a particular geographic area, during some specified interval of time. This practice generally assumes that the population is sufficiently large so that, for sampling purposes, it may be considered infinite. Where this assumption is inadequate, that is, the population is assumed finite, many of the provisions of this practice may be employed but the sampling and analysis procedure must be designed to reflect a finite population. The statistical techniques embodied in this practice provide procedures to summarize data so that logical judgments can be made. This practice does not specify the action to be taken after the results have been analyzed. The action to be taken depends on the particular requirements of the user of the product. 1.2 The values stated in inch-pound units are to be regarded as the standard. 1.3 This practice does not purport to address the adjustment factors needed to adjust test data to standardized mechanical and environmental conditions (that is, temperature, moisture, test span, or load duration). Additionally, it provides a basis for statistical estimates that will typically require further adjustment to determine design values for use with an accepted design methodology (that is, allowable stress, limit states, or load and resistance factor design). It shall be the responsibility of the user to seek out the appropriate adjustments in specific product standards. 1.4 This practice does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. 1 This practice is under the jurisdiction of ASTM Committee D07 on Wood and is the direct responsibility of Subcommittee D07.02 on Lumber and Engineered Wood Products. Current edition approved Oct. 1, 2017. Published October 2017. Originally approved in 1970 as D2915 – 70 T. Last previous edition approved in 2010 as D2915 –10. DOI: 10.1520/D2915-17. 2 The boldface numbers in parentheses refer to the list of references at the end of this practice. Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. 1 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Standard Practice for Sampling and Data-Analysis for Structural Wood and Wood-Based Products

ICS
79.040
CCS
发布
2017-10-01
实施

This document specifies a method for determining of the static hardness of wood by measuring resistance of a test piece to the penetration of a plunger under gradually increasing load.

Physical and mechanical properties of wood - Test methods for small clear wood specimens - Part 12: Determination of static hardness

ICS
79.040
CCS
B69
发布
2017-10-01
实施

1.1 These test methods cover determination of the bending strength and stiffness of wood poles. Knowledge of these properties is used in providing for reliable and economical design with poles of different species, size, or grade. 1.2 Two test methods are included: the cantilever test method and the machine test method. 1.3 Provision is also made for extracting small clear specimens from the butt section and determining static bending and compression parallel to grain strength values in accordance with Test Methods D143. 1.4 The procedures specified in these test methods apply to tests of either treated or untreated material. 1.5 The values stated in inch-pound units are to be regarded as the standard. SI values are given in parentheses and are provided for information only. 1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Standard Test Methods of Static Tests of Wood Poles

ICS
79.040
CCS
发布
2017-10-01
实施

Sawn timber - Assessment of drying quality

ICS
79.040
CCS
发布
2017-10-01
实施

This document specifies a method for the determination of the resistance of wood to impact indentation by a steel ball.

Physical and mechanical properties of wood - Test methods for small clear wood specimens - Part 11: Determination of resistance to impact indentation

ICS
79.040
CCS
B69
发布
2017-10-01
实施

1.1 This specification covers the physical characteristics of round timber construction poles to be used either treated or untreated. 1.2 This test method covers basic principles for establishing recommended design stress values for round timber construction poles that are applicable to the quality described. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Standard Specification and Test Method for Establishing Recommended Design Stresses for Round Timber Construction Poles

ICS
79.040
CCS
发布
2017-10-01
实施

This document specifies a method for determining the impact bending strength of wood.

Physical and mechanical properties of wood - Test methods for small clear wood specimens - Part 10: Determination of impact bending strength

ICS
79.040
CCS
B69
发布
2017-10-00
实施



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