GB/T 4618.1-2008 in English
VALIDPlastics - Epoxy resins - Determination of chlorine content - Part 1: Inorganic chlorine
- Issued on:2008-08-04
- Implemented on:2009-04-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$97.00
《GB/T 4618.1-2008塑料 环氧树脂氯含量的测定 第1部分:无机氯》由TC15(全国塑料标准化技术委员会)归口,TC15SC11(全国塑料标准化技术委员会热固性塑料分会)执行,主管部门为中国石油和化学工业联合会。
GB/T 4618《塑料 环氧树脂氯含量的测定》共分三个部分,本部分为GB/T 4618的第1部分,等同采用ISO 21627-1:2007《塑料――环氧树脂――氯含量的测定――第1部分:无机氯》(英文版)。
本标准代替GB/T 4613-1984《环氧树脂和缩水甘油酯无机氯的测定》。
GB/T 4618的本部分规定了使用电位滴定仪直接测定环氧树脂中的无机氯(氯离子)的方法。
无机氯含量以每千克环氧树脂中的毫克数表示。
――更改了标准名称、增加了前言;
――增加了规范性引用文件;
――增加了术语和定义;
――试剂丁酮换成了丙酮;
――标准溶液由0.01N或0.002N硝酸银水溶液改成0.002mol/L硝酸银异丙醇溶液;
――基准试剂氯化钠干燥温度由120℃改成500℃~600℃;
――称样量由3g~10g改成10g;
――增加了终点判定说明;
――增加了结果修约要求。
Scope
Warning: Personnel using this part of GB/T 4618 should be familiar with general laboratory rules. This section does not address any security issues associated with use. It is the user's responsibility to establish appropriate safety and health practices and comply with relevant regulations. This part of GB/T 4618 specifies the method for the direct determination of inorganic chlorine (chloride ions) in epoxy resins using a potentiometric titrator. Inorganic chlorine content is expressed in milligrams per kilogram of epoxy resin.

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