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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:
|Photographs of Specimens||5|
|Control of Moisture Content and Temperature||6|
|Record of Heartwood and Sapwood||7|
|Compression Parallel to Grain||9|
|Compression Perpendicular to Grain||12|
|Shear Parallel to Grain||14|
|Tension Parallel to Grain||16|
|Tension Perpendicular to Grain||17|
|Specific Gravity and Shrinkage in Volume||19|
|Radial and Tangential Shrinkage||20|
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.
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
E2309 Practices for Verification of Displacement Measuring Systems and Devices Used in Material Testing Machines
ICS Number Code 79.040 (Wood, sawlogs and sawn timber)
UNSPSC Code 11121600(Wood)
|Link to Active (This link will always route to the current Active version of the standard.)|
ASTM D143-94(2007), Standard Test Methods for Small Clear Specimens of Timber, ASTM International, West Conshohocken, PA, 2007, www.astm.orgBack to Top