This standard provides guidelines for the uniform presentation of data on the physical and mechanical properties of timber. It specifies the list of properties, the necessary statistical calculations, and the standard format for reporting, ensuring consistency and comparability of data from different sources.
Methods of presentation of data on physical and mechanical properties of timber
Quick Reference Values
Standard moisture content for reporting12 percent
Minimum number of observations for statistical validity5
Number of significant figures for Mean Value3
Number of significant figures for Standard Deviation2
Key Formulas
P12 = Pg [1 + α (12 - M)] — Adjustment of property to 12% moisture content
s = √[ (Σx² - (Σx)²/n) / (n-1) ] — Standard Deviation
Practical Notes
This code is a companion to timber testing standards like IS 1708; it dictates how to report the results, not how to perform the tests.
Crucial for normalizing test data to a standard 12% moisture content, allowing for fair comparison between different timber species or batches.
Use the format in Table 1 as a template when creating material property data sheets for timber to ensure compliance and clarity.