UNE 55511-2:1981 SURFACE ACTIVE AGENTS. ANALYSIS OF TECHNICAL SODIUM PRIM-ALKYLSULFATES. DETERMINATION OF CONTENT OF PETROLEUM ETHER EXTRACTABLE PRODUCTS
1981UNE 55511-2:1981 SURFACE ACTIVE AGENTS. ANALYSIS OF TECHNICAL SODIUM PRIM-ALKYLSULFATES. DETERMINATION OF CONTENT OF PETROLEUM ETHER EXTRACTABLE PRODUCTS