ASTM D 143 : 2021
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Standard Test Methods for Small Clear Specimens of Timber
Hardcopy , PDF
21-12-2023
English
12-07-2021
Important note : Users cannot be edited or removed once added to your Multi user PDF.| Committee |
D 07
|
| DocumentType |
Test Method
|
| Pages |
32
|
| PublisherName |
American Society for Testing and Materials
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
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.
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