000			01012nam a2200133Ia 4500
008			220216s9999 xx 000 0 und d
100			_aTan A G
245		0	_aBoron compounds for rubberwood preservation
260			_bPlanters' Bulletin _c1991
300			_a28-41
520			_aThe reasons for the choice of the B compounds borax and boric acid for the chemical treatment of rubber wood in Malaysia are explained and 2 methods of treatment for timber are evaluated. Boron compounds give rubber wood a good protection against insect pests. They are non-toxic and do not affect the colour of the timber. They are fairly common chemicals, easily available at reasonable prices. Treatment by pressure impregnation is more effective and faster than by dip diffusion, the former requiring only a few hours to achieve complete penetration while the latter needs a few weeks. A simple spot test for determining the presence of B compounds in sawn timber is described.
650			_aRubberwood preservation
942			_cBO
999			_c48151 _d48151