AS/NZS 4063.2:2010 CHARACTERIZATION OF STRUCTURAL TIMBER - DETERMINATION OF CHARACTERISTIC VALUES
PREFACE
CONTENTS
SECTION 1 SCOPE AND GENERAL
1.1 SCOPE
1.2 APPLICATION
1.3 NORMATIVE REFERENCES
1.4 DEFINITIONS
1.4.1 Characteristic value
1.4.2 Design characteristic values
1.4.3 Percentile value
1.4.4 Random sampling
1.4.5 Reference population
1.4.6 Sample
1.4.7 Sample size
1.4.8 Sample piece
1.4.9 Standardized stress grade
1.4.10 Stress grade (noun)
1.4.11 Stress grading system
1.4.12 Stress graded timber
1.4.13 Test piece
1.5 NOTATION
1.5.1 General
1.5.2 Subscripts
SECTION 2 REFERENCE POPULATION, SAMPLING AND SELECTION OF TEST PIECES
2.1 GENERAL
2.2 REFERENCE POPULATION
2.3 SAMPLING
2.3.1 General
2.3.2 Sample selection
2.3.3 Sample size
2.4 SELECTION OF TEST PIECES
SECTION 3 EVALUATION OF CHARACTERISTIC VALUES FROM SAMPLE TEST DATA
3.1 GENERAL
3.2 CHARACTERISTIC VALUES
3.3 STATISTICAL EVALUATION METHODS
3.3.1 Evaluation of characteristic values
3.3.2 Calculation of coefficient of variation
3.3.3 Evaluation based on pooled data
3.4 NON-STANDARD TEST CONDITIONS AND CONFIGURATIONS
SECTION 4 DETERMINATION OF DESIGN CHARACTERISTIC VALUES OR STRESS GRADE FOR STRUCTURAL TIMBER
4.1 GENERAL
4.2 DETERMINATION OF DESIGN CHARACTERISTIC VALUES
4.2.1 General
4.2.2 Modification factor to provide a margin to allow for variations in manufacture and resource
4.2.3 Modification factor for variability
4.3 ASSIGNMENT OF STRESS GRADE
SECTION 5 REPORT
APPENDIX A - RANDOM SELECTION OF TEST PIECE LOCATION
A1 GENERAL
A2 RANDOM LOCATION
APPENDIX B - STATISTICAL METHODS FOR EVALUATION
B1 GENERAL
B2 CHARACTERISTIC VALUE FOR STRENGTH PROPERTIES
B2.1 General
B2.2 Statistical evaluation, method 1
B2.3 Statistical evaluation, method 2
B2.4 Statistical evaluation, method 3 (non-parametric)
B2.5 Statistical evaluation, method 4 (non-parametric)
B3 CHARACTERISTIC VALUES FOR MODULUS OF ELASTICITY
B3.1 General
B3.2 Test data
B3.3 Characteristic values
B3.4 Sampling factor (ks) mean modulus of elasticity () and 5th percentile modulus of elasticity (E05)
B4 CHARACTERISTIC VALUE FOR MODULUS OF RIGIDITY
B4.1 General
B4.2 Test data
B4.3 Characteristic value
B4.4 Sampling factor ks, mean modulus of rigidity ()
B5 CHARACTERISTIC VALUE FOR MODULUS OF ELASTICITY PERPENDICULAR TO GRAIN
B6 CHARACTERISTIC VALUE FOR DENSITY
B6.1 General
B6.2 Test data
B6.3 Characteristic value of a strength property
B6.4 Sampling factor (ks) and density ()
APPENDIX C - WORKED EXAMPLES-STATISTICAL EVALUATION
C1 GENERAL
C2 CHARACTERISTIC VALUE FOR STRENGTH
C2.1 General
C2.2 Typical strength test data
C2.3 Percentiles (pi) for the empirical cumulative frequency distribution
C2.4 Point estimate of 5th percentile
C2.5 Example 1-Statistical evaluation method 1, Appendix B
C2.6 Example 2-Statistical evaluation method 2, Appendix B
C2.7 Example 3-Statistical method 3, Appendix B
C2.8 Example 4-Statistical evaluation method 4, Appendix B
C3 CHARACTERISTIC VALUE OF MODULUS OF ELASTICITY
C3.1 Data and parameters
C3.2 Procedure
APPENDIX D - POOLING TEST DATA
D1 GENERAL
D2 POOLING TEST DATA
D3 PROCEDURE
D4 EXAMPLE
