haohanPorapak QGB/T 17931-1999 瓶级聚酯切片中乙醛测定填充柱

GB/T 17931-1999 瓶级聚酯切片
本标准规定了瓶级聚酯切片的产品分类、技术要求、试验方法、检验规则、标志、包装、运输和贮存等要求。
本标准主要适用于以精对苯二甲酸、乙二醇为主要原料，采用直接酷化连续缩聚或间歇缩聚均聚聚酯产品和以精对苯二甲酸、乙二醇及间苯二甲酸采用直接酷化连续缩聚或间歇缩聚共聚聚酯产品其他工艺路线的产品可参照使用。
本标准主要适用于食品容器和包装材料用聚酯切片，非食品容器及包装材料用聚酯切片可参照使用。

名称：填充柱
固定相：乙基乙烯苯-二乙烯苯共聚物
规格：2m*6mm
型号：Porapak Q或者GDX-102(80-100目）
粒度：80-100目
应用：GB/T 17931-1999 瓶级聚酯切片

浩瀚色谱（山东）应用技术开发有限公司对瓶用聚对苯二甲酸乙二醇酯（PET）树脂国标中乙醛分析方法的各操作步骤进行了研究,对样品粉碎颗粒度、样品称样量、样品保存条件和时间、样品平衡时间、色谱操作条件和顶空操作条件、标准曲线制作等进行了细化,提出了国标修订的建议。 

GB/T 17931-1999 Bottle grade polyester chips
GB/T 17931-1999 Bottle grade polyester chips
This standard specifies the product classification, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage requirements of bottle-grade polyester chips.
This standard is mainly applicable to the use of purified terephthalic acid and ethylene glycol as the main raw materials, the use of direct acylation continuous polycondensation or intermittent polycondensation of homopolyester products and the use of purified terephthalic acid, ethylene glycol and isophthalic acid. The products of other process routes of direct acylation continuous polycondensation or batch polycondensation copolyester products can be used as reference.
This standard is mainly applicable to polyester chips for food containers and packaging materials, and polyester chips for non-food containers and packaging materials can be used for reference.

Name: Packed Column
Stationary Phase: Ethylvinylbenzene-divinylbenzene copolymer
Specifications: 2m*6mm
Model: Porapak Q or GDX-102 (80-100 mesh)
Granularity: 80-100 mesh
Application: GB/T 17931-1999 bottle grade polyester chips

Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. studied the operation steps of the acetaldehyde analysis method in the national standard of polyethylene terephthalate (PET) resin for bottles. , sample storage conditions and time, sample equilibration time, chromatographic operating conditions and headspace operating conditions, standard curve preparation, etc. were refined, and suggestions for the revision of the national standard were put forward.