ASTM D143-94(2007)
Historical Standard: ASTM D143-94(2007) Standard Test Methods for Small Clear Specimens of Timber
SUPERSEDED (see Active link, below)
ASTM D143
1. Scope
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 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 SI values are given in parentheses and are provided for information only. 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 and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
D198 Test Methods of Static Tests of Lumber in Structural Sizes
D2395 Test Methods for Specific Gravity of Wood and Wood-Based Materials
D3043 Test Methods for Structural Panels in Flexure
D3500 Test Methods for Structural Panels in Tension
D4442 Test Methods for Direct Moisture Content Measurement of Wood and Wood-Base Materials
D4761 Test Methods for Mechanical Properties of Lumber and Wood-Base Structural Material
D5536 Practice for Sampling Forest Trees for Determination of Clear Wood Properties
E4 Practices for Force Verification of Testing Machines
Keywords
clear specimens; small clear specimens; timber; wood; Bend testing--wood products; Clear wood evaluation/testing; Cleavages; Compression testing--wood/wood products; Field testing--wood products; Flexural testing--wood products; Hardness tests--wood products; Heartwood; Impact testing--building products; Moisture analysis--wood products; Nail pull resistance; Nails; Radial shrinkage; Sapwood; Shear testing--wood products; Shipping; Shrinkage; Single-blow impact test; Specific gravity--wood products; Static tests--building materials/applications; Summerwood; Tangential shrinkage; Tensile properties/testing--wood products; Timber; Toughness; Withdrawal resistance;
ICS Code
ICS Number Code 79.040 (Wood, sawlogs and sawn timber)
DOI: 10.1520/D0143-94R07
ASTM International is a member of CrossRef.
