ASTM D6570-18

Standard Practice for Assigning Allowable Properties for Mechanically Graded Lumber

SIGNIFICANCE AND USE
4.1 The procedures described in this practice are intended to be used to establish appropriate allowable unit stresses, moduli of elasticity, and specific gravity for mechanically graded solid sawn lumber. An on-going quality control program to monitor compliance with the assigned grade properties is required.
SCOPE
1.1 This practice covers the methodology of grade qualification, assignment of design properties, and requirements for the quality control of mechanically graded solid sawn lumber.  
1.2 This practice acknowledges alternative methods for the assignment of specific properties. These methods are assignment by test, relationship to other properties, and by procedures in other appropriate standards.  
1.3 This 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.

General Information

• Status: Historical
• Publication Date: 31-Aug-2018
• ICS: 79.080 - Semi-manufactures of timber
• Technical Committee: D07 - Wood
• Drafting Committee: D07.02 - Lumber and Engineered Wood Products

Relations

• Replaces: ASTM D6570-04(2010) - Standard Practice for Assigning Allowable Properties for Mechanically Graded Lumber
• Effective Date: 01-Sep-2018
• Referred By: ASTM D2915-17(2022) - Standard Practice for Sampling and Data-Analysis for Structural Wood and Wood-Based Products
• Effective Date: 01-Sep-2018
• Referred By: ASTM D3737-18e1 - Standard Practice for Establishing Allowable Properties for Structural Glued Laminated Timber (Glulam)
• Effective Date: 01-Sep-2018

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D6570 − 18
Standard Practice for
Assigning Allowable Properties for Mechanically Graded
1
Lumber
This standard is issued under the fixed designation D6570; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope D2555PracticeforEstablishingClearWoodStrengthValues
D2915Practice for Sampling and Data-Analysis for Struc-
1.1 This practice covers the methodology of grade
tural Wood and Wood-Based Products
qualification, assignment of design properties, and require-
D3737Practice for Establishing Allowable Properties for
ments for the quality control of mechanically graded solid
Structural Glued Laminated Timber (Glulam)
sawn lumber.
D4442Test Methods for Direct Moisture Content Measure-
1.2 This practice acknowledges alternative methods for the
ment of Wood and Wood-Based Materials
assignment of specific properties. These methods are assign-
D4761Test Methods for Mechanical Properties of Lumber
ment by test, relationship to other properties, and by proce-
and Wood-Base Structural Material
dures in other appropriate standards.
D7438Practice for Field Calibration and Application of
1.3 This international standard was developed in accor-
Hand-Held Moisture Meters
3
dance with internationally recognized principles on standard-
2.2 ANSI Standards:
ization established in the Decision on Principles for the
ANSI/AITCA190.1American National Standard for Wood
Development of International Standards, Guides and Recom-
Products—Structural Glued Laminated Timber
mendations issued by the World Trade Organization Technical
ANSI/AWCNDSNational Design Specification for Wood
Barriers to Trade (TBT) Committee.
Construction
4
2.3 Canadian Standards Association Standard:
2. Referenced Documents
CSAO141Softwood Lumber
2
2.1 ASTM Standards:
2.4 National Institute of Standards and Technology Stan-
D9Terminology Relating to Wood and Wood-Based Prod-
5
dard:
ucts
PS20Voluntary Product Standard, American Softwood
D143Test Methods for Small Clear Specimens of Timber
Lumber Standard
D198Test Methods of Static Tests of Lumber in Structural
Sizes
3. Terminology
D245Practice for Establishing Structural Grades and Re-
lated Allowable Properties for Visually Graded Lumber
3.1 Definitions—For definitions of terms related to wood,
D1165Nomenclature of Commercial Hardwoods and Soft- refer to Terminology D9.
woods
3.2 Definitions of Terms Specific to This Standard:
D1990Practice for Establishing Allowable Properties for
3.2.1 mechanical evaluation, n—identificationandappraisal
Visually-Graded Dimension Lumber from In-Grade Tests
of one or more physical or mechanical lumber characteristics
of Full-Size Specimens
as part of the lumber segregation process.
D2395TestMethodsforDensityandSpecificGravity(Rela-
3.2.2 mechanically graded lumber, n—solid sawn lumber
tive Density) of Wood and Wood-Based Materials
graded by mechanical evaluation. Visual evaluation also may
berequired.Thematerialhasassigneddesignpropertiesandis
1
manufactured for use as structural members.
This practice is under the jurisdiction ofASTM Committee D07 on Wood and
is the direct responsibility of Subcommittee D07.02 on Lumber and Engineered
Wood Products.
Current edition approved Sept. 1, 2018. Published September 2018. Originally
3
approved in 2000. Last previous edition approved in 2010 as D6570–04 (2010). Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
DOI: 10.1520/D6570-18. 4th Floor, New York, NY 10036, http://www.ansi.org.
2 4
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Available from Canadian Standards Association (CSA), 5060 Spectrum Way,
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Mississauga, ON L4W 5N6, Canada, http://www.csa.ca.
5
Standards volume information, refer to the standard’s Document Summary page on Available from National Institute of Standards and Technology (NIST), 100
the ASTM website. Bureau Dr., Stop 1070, Gaithersburg, MD 20899-1070, http://www.nist.gov.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D6570 − 18
3.2.3 qualified agency, n—an organization, hereafter re- 6.2.2 Allqualificationsamplesshallmeetthevisualrequire-
ferred to as the agency, that has trained personnel and proce- ments established for the grade.
durestoensurethesystemevaluationsandgradescomplywith
6.2.3 The minimum sample size for estimation of strength
all applicable requirements of this practice. properties, and MOE shall be 53 specimens.
3.2.3.1 Discussion—The
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D6570 − 04 (Reapproved 2010) D6570 − 18
Standard Practice for
Assigning Allowable Properties for Mechanically Graded
1
Lumber
This standard is issued under the fixed designation D6570; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This practice covers the methodology of grade qualification, assignment of design properties, and requirements for the
quality control of mechanically graded solid sawn lumber.
1.2 This practice acknowledges alternative methods for the assignment of specific properties. These methods are assignment by
test, relationship to other properties, and by procedures in other appropriate standards.
1.3 This 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.
2. Referenced Documents
2
2.1 ASTM Standards:
D9 Terminology Relating to Wood and Wood-Based Products
D143 Test Methods for Small Clear Specimens of Timber
D198 Test Methods of Static Tests of Lumber in Structural Sizes
D245 Practice for Establishing Structural Grades and Related Allowable Properties for Visually Graded Lumber
D1165 Nomenclature of Commercial Hardwoods and Softwoods
D1990 Practice for Establishing Allowable Properties for Visually-Graded Dimension Lumber from In-Grade Tests of Full-Size
Specimens
D2395 Test Methods for Density and Specific Gravity (Relative Density) of Wood and Wood-Based Materials
D2555 Practice for Establishing Clear Wood Strength Values
D2915 Practice for Sampling and Data-Analysis for Structural Wood and Wood-Based Products
D3737 Practice for Establishing Allowable Properties for Structural Glued Laminated Timber (Glulam)
D4442 Test Methods for Direct Moisture Content Measurement of Wood and Wood-Based Materials
D4444 Test Method for Laboratory Standardization and Calibration of Hand-Held Moisture Meters
D4761 Test Methods for Mechanical Properties of Lumber and Wood-Base Structural Material
D7438 Practice for Field Calibration and Application of Hand-Held Moisture Meters
3
2.2 ANSI Standards:
ANSI/AITC A190.1 American National Standard for Wood Products—Structural Glued Laminated Timber
ANSI/AF&PA NDSANSI/AWC NDS National Design Specification for Wood Construction
4
2.3 Canadian Standards Association Standard:
CSA O141 Softwood Lumber
5
2.4 National Institute of Standards and Technology Standard:
PS 20 Voluntary Product Standard, American Softwood Lumber Standard
1
This practice is under the jurisdiction of ASTM Committee D07 on Wood and is the direct responsibility of Subcommittee D07.02 on Lumber and Engineered Wood
Products.
Current edition approved May 1, 2010Sept. 1, 2018. Published June 2010September 2018. Originally approved in 2000. Last previous edition approved in 20042010 as
ε1
D6570 – 04D6570 . – 04 (2010). DOI: 10.1520/D6570-04R10.10.1520/D6570-18.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
4
Available from Canadian Standards Association (CSA), 5060 Spectrum Way, Mississauga, ON L4W 5N6, Canada, http://www.csa.ca.
5
Available from National Institute of Standards and Technology (NIST), 100 Bureau Dr., Stop 1070, Gaithersburg, MD 20899-1070, http://www.nist.gov.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D6570 − 18
3. Terminology
3.1 Definitions—For definitions of terms related to wood, refer to Terminology D9.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 mechanical evaluation, n—identification and appraisal of one or more physical or mechanical lumber characteristics as
part of the lumber segregation process.
3.2.2 mechanically graded lumber, n—solid sawn lumber graded by mechanical evaluation. Visual evaluation also may be
required. The material has assign
...