TY - GEN ED - SRI LANKA STANDARDS INSTITUTION TI - SLS 916 : Part 1 : 1991 : Specification for rubber compounding ingredients : Part 1 - Carbon black - HAF N 330 type PY - 1991/// CY - Colombo PB - SLSI KW - a678.021.17:661:666.4 KW - SRI LANKA-STNDARDS KW - STANDARDS-SRI LANKA N1 - STD3031 ER -