AS/NZS 4490:1997

1 - AS/NZS 4490:1997 TIMBER-STRESS-GRADED-PROCEDURES FOR MONITORING STRUCTURAL PROPERTIES
4 - PREFACE
5 - CONTENTS
6 - FOREWORD
7 - 1 SCOPE
7 - 2 REFERENCED DOCUMENTS
7 - 3 DEFINITIONS
7 - 3.1 Continuous monitoring
7 - 3.2 Periodic monitoring
7 - 4 INITIAL EVALUATION
8 - 5 PROCEDURES FOR PERIODIC MONITORING
8 - 6 CORRECTIVE ACTION
9 - APPENDIX A - MONITORING PROCEDURE BY MEASUREMENT OF MODULUS OF ELASTICITY
9 - A1 SAMPLING AND TEST PROCEDURE
9 - A2 ACCEPTANCE CRITERION
9 - A3 EXAMPLE
10 - APPENDIX B - MONITORING PROCEDURE BY MEASUREMENT OF BENDING STRENGTH
10 - B1 SAMPLING AND TEST PROCEDURE
10 - B2 ACCEPTANCE CRITERION
10 - B3 EXAMPLE
13 - APPENDIX C - MONITORING PROCEDURE BY MEASUREMENT OF TENSION STRENGTH
13 - C1 SAMPLING AND TEST PROCEDURE
13 - C2 ACCEPTANCE CRITERION
13 - C3 EXAMPLE
14 - APPENDIX D - MONITORING PROCEDURE BY A PROOF TESTING MACHINE
14 - D1 SAMPLING AND TEST PROCEDURE
14 - D2 ACCEPTANCE CRITERION

Provides procedures for determination and periodic monitoring of structural properties by in-grade testing. The procedures can be used to establish stress-grades for an identified population of production material.

This Standard sets out procedures for determining values of the structural properties of stress-graded solid timber graded by any method, through an initial evaluation process using in-grade testing and subsequent periodic monitoring.NOTES:1 This Standard can be applied to structural timber products other than solid timber, but care should be taken to ensure that the requirements of this Standard are appropriate for that application.2 Continuous monitoring is regarded as a necessary part of the implementation of this Standard.

First published as AS/NZS 4490:1997.