Norm

ASTM D143 - 09 en

Standard Test Methods for Small Clear Specimens of Timber

  • Deze norm is ingetrokken sinds 01-02-2014

73,70 89,18 Incl BTW

Over deze norm

Status Ingetrokken
Aantal pagina's 31
Gepubliceerd op 01-09-2009
Taal Engels

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 Bending10
Toughness11
Compression Perpendicular to Grain12
Hardness13
Shear Parallel to Grain14
Cleavage15
Tension Parallel to Grain16
Tension Perpendicular to Grain17
Nail Withdrawal18
Specific Gravity and Shrinkage in Volume19
Radial and Tangential Shrinkage20
Moisture Determination21
Permissible Variations22
Calibration23

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.

Details

ICS-code 79.040
Engelse titel Standard Test Methods for Small Clear Specimens of Timber
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