TY - GEN ED - SRI LANKA STANDARDS INSTITUTION TI - SLS 891 : 1990 : Specification for organic solvent type timber preservatives PY - 1990/// CY - Colombo PB - SLSI KW - a674.04:691.57 KW - SRI LANKA-STANDARDS KW - STANDARDS-SRI LANKA N1 - STD3014 ER -