GB/T 41489-2022塑料聚酰胺气相色谱法测定ε-己内酰胺和ω-十二内酰胺国家标准
英文:Plastics—Polyamides—Determination of ε-caprolactam and ω-laurolactam by gas chromatography GB/T 41489-2022介绍: 国家标准《塑料...
英文:Plastics—Polyamides—Determination of ε-caprolactam and ω-laurolactam by gas chromatography GB/T 41489-2022介绍: 国家标准《塑料...