In previous tests with jubaea-palm almost no fixation of a CCA-preservative Type B could be achieved, consequently, further leaching tests were carried out with samples of 1 cocos-, 1 oil- and 2 rattan-palms from Malaysia. A good fixation of chromium and copper took place in cocos-palm after 4 weeks storage at 28°C. Nevertheless the fixation was slower than in pine-wood and demanded an elevated temperature, as is present in the tropics. In oil-palm the fixation was poor with an average leaching rate of 12% for chromium and 14-26% for copper. In the rattan-palm, however, the fixation of chromium and copper was identical to pine-wood. The fixation of arsenic was markedly lower than chromium and copper.

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