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  • ASTM D 1990 : 2014

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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 Practice for Establishing Allowable Properties for Visually-Graded Dimension Lumber from In-Grade Tests of Full-Size Specimens

    Available format(s):  Hardcopy, PDF

    Superseded date:  11-11-2014

    Language(s):  English

    Published date:  15-02-2014

    Publisher:  American Society for Testing and Materials

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    1.1This practice covers the principles and procedures for establishing allowable stress values for bending, tension parallel to grain, compression parallel to grain and modulus of elasticity values for structural design from “In-Grade” tests of full-size visually graded solid sawn dimension lumber. This practice also covers procedures for periodic monitoring, and additional procedures, if needed, for evaluation and possible reassessment of assigned design values. This practice is focused on, but is not limited to, grades which used the concepts incorporated in Practice D245 and were developed and interpreted under American Softwood Lumber PS 20.

    1.2A basic assumption of the procedures used in this practice is that the samples selected and tested are representative of the entire global population being evaluated. This approach is consistent with the historical clear wood methodology of assigning an allowable property to visually-graded lumber which was representative of the entire growth range of a species or species group. Every effort shall be made to ensure the test sample is representative of population by grade and size (see 7.1.1 and 7.1.2).

    1.3Due to the number of specimens involved and the number of mechanical properties to be evaluated, a methodology for evaluating the data and assigning allowable properties to both tested and untested grade/size cells is necessary. Sampling and analysis of tested cells are covered in Practice D2915. The mechanical test methods are covered in Test Methods D198 and D4761. This practice covers the necessary procedures for assigning allowable stress and modulus of elasticity values to dimension lumber from In-Grade tests. The practice includes methods to permit assignment of allowable stress and modulus of elasticity values to untested sizes and grades, as well as some untested properties. The practice includes procedures for periodic monitoring of the species or species group to quantify potential changes in the product and verification of the assigned design values through, evaluation, and reassessment.

    Note 1In the implementation of the North American In-Grade test program, allowable stress values for compression perpendicular to grain and shear parallel to grain for structural design were calculated using the procedures of Practice D245.

    1.4This practice only covers dimension lumber.

    1.5This 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.

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    Committee D 07
    Document Type Standard Practice
    Publisher American Society for Testing and Materials
    Status Superseded
    Superseded By
    Supersedes

    Standards Referenced By This Book - (Show below) - (Hide below)

    ASTM D 6570 : 2018 : REV A Standard Practice for Assigning Allowable Properties for Mechanically Graded Lumber
    ASTM D 5457 : 2019 : REV B Standard Specification for Computing Reference Resistance of Wood-Based Materials and Structural Connections for Load and Resistance Factor Design
    ASTM D 7033 : 2014 Standard Practice for Establishing Design Capacities for Oriented Strand Board (OSB) Wood-Based Structural-Use Panels
    ASTM D 6039/D6039M : 2018 Standard Specification for Open and Covered Wood Crates
    ASTM D 2915 : 2017 Standard Practice for Sampling and Data-Analysis for Structural Wood and Wood-Based Products
    ASTM D 6251/D6251M : 2011 Standard Specification for Wood-Cleated Panelboard Shipping Boxes
    ASTM D 5055 : 2019 Standard Specification for Establishing and Monitoring Structural Capacities of Prefabricated Wood I-Joists
    ASTM D 7381 : 2007 : R2013 Standard Practice for Establishing Allowable Stresses for Round Timbers for Piles from Tests of Full-Size Material
    ASTM D 7199 : 2007 : R2012 Standard Practice for Establishing Characteristic Values for Reinforced Glued Laminated Timber (Glulam) Beams Using Mechanics-Based Models
    ASTM D 6555 : 2017 Standard Guide for Evaluating System Effects in Repetitive-Member Wood Assemblies
    ASTM D 6874 : 2012 Standard Test Methods for Nondestructive Evaluation of Wood-Based Flexural Members Using Transverse Vibration
    ASTM D 6782 : 2013 Standard Test Methods for Standardization and Calibration of In-Line Dry Lumber Moisture Meters
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