TY - GEN ED - SRI LANKA STANDARDS INSTITUTION TI - SLS 644 : 1984 : Specification for Potassium Chloride (fertilizer grade) PY - 1984/// CY - Colombo PB - SRI LANKA STANDARDS INSTITUTION KW - a631.83:661.83 KW - SRI LANKA-STANDARDS KW - STANDARDS-SRI LANKA N1 - STD2839 ER -