NS 9018:1981 Phenol, o-cresol, m-cresol, p-cresol; cresylic acid and xylenols for industrial use — Methods of test — Part 3: Determination of neutral oils and pyridine bases
1981NS 9018:1981 Phenol, o-cresol, m-cresol, p-cresol; cresylic acid and xylenols for industrial use — Methods of test — Part 3: Determination of neutral oils and pyridine bases