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English versions: GB/T 11067
English versions: GB/T 41771
GB/T 45042-2024_Chinese: Textiles - Quantitative chemical analysis - Mixtures of polyacrylonitrile preoxidized fiber and certain other fibers (Chinese: 纺织品 定量化学分析 聚丙烯腈预氧化纤维与某些其他纤维的混合物)
phenolphthalein alkalinity
GB 4396-2024 Chinese PDF GB 4234.2-2024 English versions: GB/T 11067GB 4396 2024_Chinese: Carbon dioxide extinguishing agent (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB 4396 2024
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