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ASTM International - ASTM D143-22

Standard Test Methods for Small Clear Specimens of Timber

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Organization: ASTM International
Publication Date: 15 May 2022
Status: active
Page Count: 32
ICS Code (Wood, sawlogs and sawn timber): 79.040
significance And Use:

4.1 These test methods cover tests on small clear specimens of wood that are made to provide the following:

4.1.1 Data for comparing the mechanical properties of various... View More

scope:

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

1.1.1 These 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.

1.1.2 Sampling 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.

1.1.3 The 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.

1.2 The 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

1.3 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.

Document History

ASTM D143-22
May 15, 2022
Standard Test Methods for Small Clear Specimens of Timber
1.1 These test methods cover the determination of various strength and related properties of wood by testing small clear specimens. 1.1.1 These test methods represent procedures for evaluating the...
June 1, 2021
Standard Test Methods for Small Clear Specimens of Timber
1.1 These test methods cover the determination of various strength and related properties of wood by testing small clear specimens. 1.1.1 These test methods represent procedures for evaluating the...
February 1, 2014
Standard Test Methods for Small Clear Specimens of Timber
1.1 These test methods cover the determination of various strength and related properties of wood by testing small clear specimens. 1.1.1 These test methods represent procedures for evaluating the...
September 1, 2009
Standard Test Methods for Small Clear Specimens of Timber
1.1 These test methods cover the determination of various strength and related properties of wood by testing small clear specimens. 1.1.1 These test methods represent procedures for evaluating the...
April 10, 2007
Standard Test Methods for Small Clear Specimens of Timber
1.1 These methods cover the determination of various strength and related properties of wood by testing small clear specimens. 1.1.1 These methods represent procedures for evaluating the different...
April 1, 2007
Standard Test Methods for Small Clear Specimens of Timber
1.1 These methods cover the determination of various strength and related properties of wood by testing small clear specimens. 1.1.1 These methods represent procedures for evaluating the different...
January 1, 2000
Standard Test Methods for Small Clear Specimens of Timber
1.1 These methods cover the determination of various strength and related properties of wood by testing small clear specimens. 1.1.1 These methods represent procedures for evaluating the different...
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