UNE-EN ISO 1833-12:2021现行
Textiles - Quantitative chemical analysis - Part 12: Mixtures of acrylic, certain modacrylics, certain chlorofibres, certain elastane fibres with certain other fibres (method using dimethylformamide) (ISO 1833-12:2020)
出版：Asociacion Espanola de Normalizacion
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