TY - BOOK ED - Sri Lanka standards institution TI - Specification for Organic Solvent Type Timber Preservatives: SLS 891:1990 U1 - B3137 PY - 1992///] CY - Colombo PB - Sri Lanka Standards Institution KW - ORGANIC SOLVENT KW - TIMBER PRESEVATION KW - DISTILLATION APPARATUS KW - PENTACHLOROPHENOL ER -