DIN EN ISO 4048:2018 皮革 化學(xué)試驗(yàn) 可溶于二氯甲烷的物質(zhì)和游離脂肪酸含量的測(cè)定(ISO 4048:2018);德文版 EN ISO 4048:2018
Leather - Chemical tests - Determination of matter soluble in dichloromethane and free fatty acid content (ISO 4048:2018); German version EN ISO 4048:2018