DIN 53345-4-1978 皮革用油和脂的检验.分析方法.不能与水混合的溶剂水蒸汽挥发含量的测定
Testing of fat liquors and greases for leather; methods of analysis, determination of the content of water vapor volatile, not with water miscible solvents
Testing of fat liquors and greases for leather; methods of analysis, determination of the content of water vapor volatile, not with water miscible solventsEssai des agents de nourriture pour les cuirs; procédés d'analyse, détermination de la teneur en so