TY - GEN ED - SRI LANKA STANDARDS INSTITUTION TI - SLS 899 : Part 2 - 1991 : Methods of test for rubber compounding ingredients : Pt.2 - Zinc Oxide PY - 1990/// CY - Colombo PB - SLSI KW - a678.021.17:661.847.9 KW - SRI LANKA-STANDARDS KW - STANDARDS-SRI LANKA N1 - STD3018 ER -