Chemical analyses of IRG/COIPM INTERNATIONAL MARINE TEST (to determine the effect of timber substrate on the effectiveness of water-borne salt preservatives in sea-water) samples

IRG/WP 4114

L E Leightley

Chemical analysis of CCA and CCB treated timber was carried out after exposure at tropical and temperate marine sites. Results indicated that losses of all elements had occurred. In particular, losses of boron were severe. Arsenic and copper were also lost. The chromium components in both formulations was the most dominant metal remaining. The results suggest that chromium modification was important in timber treatments for the marine environment, since there appeared to be little difference in timber protection between the CCA and CCB systems.


Keywords: IRG/COIPM MARINE TEST; HARDWOODS; REFERENCE SPECIES; SEA-WATER; LEACHING; CCA; CCB; CHROMIUM; BORON; ARSENIC; COPPER; AAS; ICP-SPECTROMETRY

Conference: 87-05-17/22 Honey Harbour, Ontario, Canada


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