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  • ASTM D 143 : 2021

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    Standard Test Methods for Small Clear Specimens of Timber

    Available format(s):  Hardcopy, PDF

    Superseded date:  18-06-2022

    Language(s):  English

    Published date:  12-07-2021

    Publisher:  American Society for Testing and Materials

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    Scope - (Show below) - (Hide below)

    1.1These test methods cover the determination of various strength and related properties of wood by testing small clear specimens.

    1.1.1These test methods represent procedures for evaluating the different mechanical and physical properties, controlling factors such as specimen size, moisture content, temperature, and rate of loading.

    1.1.2Sampling and collection of material is discussed in Practice D5536. Sample data, computation sheets, and cards have been incorporated, which were of assistance to the investigator in systematizing records.

    1.1.3The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. When a weight is prescribed, the basic inch-pound unit of weight (lbf) and the basic SI unit of mass (Kg) are cited.

    1.2The procedures for the various tests appear in the following order:

    Sections

    Photographs of Specimens

     5

    Control of Moisture Content and Temperature

     6

    Record of Heartwood and Sapwood

     7

    Static Bending

     8

    Compression Parallel to Grain

     9

    Impact Bending

    10

    Toughness

    11

    Compression Perpendicular to Grain

    12

    Hardness

    13

    Shear Parallel to Grain

    14

    Cleavage

    15

    Tension Parallel to Grain

    16

    Tension Perpendicular to Grain

    17

    Nail Withdrawal

    18

    Specific Gravity and Shrinkage in Volume

    19

    Radial and Tangential Shrinkage

    20

    Moisture Determination

    21

    Permissible Variations

    22

    Calibration

    23

    1.3This 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.

    1.4This 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.

    General Product Information - (Show below) - (Hide below)

    Committee D 07
    Document Type Test Method
    Publisher American Society for Testing and Materials
    Status Superseded
    Superseded By
    Supersedes

    Standards Referenced By This Book - (Show below) - (Hide below)

    ASTM D 245 : 2022 Standard Practice for Establishing Structural Grades and Related Allowable Properties for Visually Graded Lumber
    ASTM D 7033 : 2022 Standard Practice for Establishing Design Capacities for Oriented Strand Board (OSB) Wood-Based Structural-Use Panels
    ASTM D 5764 : 1997 : REV A : R2018 Standard Test Method for Evaluating Dowel-Bearing Strength of Wood and Wood-Based Products
    ASTM D 5456 : 2021 : EDT 1 Standard Specification for Evaluation of Structural Composite Lumber Products
    ASTM D 2559 : 2012 : REV A : R2018 Standard Specification for Adhesives for Bonded Structural Wood Products for Use Under Exterior Exposure Conditions
    ASTM D 5536 : 2017 Standard Practice for Sampling Forest Trees for Determination of Clear Wood Properties
    ASTM D 5572 : 1995 : R2019 Standard Specification for Adhesives Used for Finger Joints in Nonstructural Lumber Products
    ASTM D 3499 : 2019 Standard Test Method for Toughness of Wood Structural Panels
    ASTM D 3737 : 2018 : EDT 1 Standard Practice for Establishing Allowable Properties for Structural Glued Laminated Timber (Glulam)
    ASTM D 1037 : 2012 : R2020 Standard Test Methods for Evaluating Properties of Wood-Base Fiber and Particle Panel Materials
    ASTM D 7031 : 2011 : R2019 Standard Guide for Evaluating Mechanical and Physical Properties of Wood-Plastic Composite Products
    ASTM D 6570 : 2018 : REV A Standard Practice for Assigning Allowable Properties for Mechanically Graded Lumber
    ASTM D 3931 : 2008 : R2015 Standard Test Method for Determining Strength of Gap-Filling Adhesive Bonds in Shear by Compression Loading
    ASTM B 900 : 2016 Standard Practice for Packaging of Copper and Copper Alloy Mill Products for U.S. Government Agencies
    ASTM D 4680 : 1998 : R2017 Standard Test Method for Creep and Time to Failure of Adhesives in Static Shear by Compression Loading (Wood-to-Wood)
    ASTM D 245 : 2006 : R2019 Standard Practice for Establishing Structural Grades and Related Allowable Properties for Visually Graded Lumber
    ASTM D 7199 : 2020 Standard Practice for Establishing Characteristic Values for Reinforced Glued Laminated Timber (Glulam) Beams Using Mechanics-Based Models
    ASTM D 5457 : 2021 : REV A Standard Specification for Computing Reference Resistance of Wood-Based Materials and Structural Connections for Load and Resistance Factor Design
    ASTM D 2555 : 2017 : REV A Standard Practice for Establishing Clear Wood Strength Values
    ASTM D 5664 : 2017 Standard Test Method for Evaluating the Effects of Fire-Retardant Treatments and Elevated Temperatures on Strength Properties of Fire-Retardant Treated Lumber
    ASTM D 7033 : 2014 Standard Practice for Establishing Design Capacities for Oriented Strand Board (OSB) Wood-Based Structural-Use Panels
    ASTM D 3983 : 1998 : R2019 Standard Test Method for Measuring Strength and Shear Modulus of Nonrigid Adhesives by the Thick-Adherend Tensile-Lap Specimen
    ASTM D 3632 : 1998 : R2019 Standard Test Method for Accelerated Aging of Adhesive Joints by the Oxygen-Pressure Method
    ASTM D 1761 : 2020 Standard Test Methods for Mechanical Fasteners in Wood and Wood-Based Materials
    ASTM D 1036 : 1999 : R2017 Standard Test Methods of Static Tests of Wood Poles
    ASTM D 905 : 2008 : R2021 Standard Test Method for Strength Properties of Adhesive Bonds in Shear by Compression Loading
    ASTM D 9 : 2020 Standard Terminology Relating to Wood and Wood-Based Products

    Standards Referencing This Book - (Show below) - (Hide below)

    ASTM D 2395 : 1993 : R1997 : EDT 2 Standard Test Methods for Specific Gravity of Wood and Wood-Based Materials
    ASTM D 198 : 2021 Standard Test Methods of Static Tests of Lumber in Structural Sizes
    ASTM D 198 : 2021 : REV A Standard Test Methods of Static Tests of Lumber in Structural Sizes
    ASTM E 4 : 2021 Standard Practices for Force Calibration and Verification of Testing Machines
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