Abstract: Since EDAX is an accessory of SEM and good at microanalysing, it may be a capable instrument for studying the penetration of preservative and infusion in wood. It is very important to study the penetration and distribution of preservative in wood for compounding the preservative and adopting the technological process. This paper introduces a method of studying the penetration and distribution of CCA preservative by SEM-EDAX-SQ-Technique. We select six wood species (Populus tomentosa, Pinus massoniana, Larix olgensis, Ulmus punmila, Pseudotsuga menziesii and Picea jezoensis), one bamboo species (Phyllostachys pubescens) and adopt two technological processes for comparison. The penetration curves are obtained as a result.

Key words: Preservation, Penetration, Energy Dispersive, Analysis of X-rang(EDAX), Microanalysis