ASTM D8062-22 含低甲基苯甲酸的精对苯二甲酸(PTA)的标准规范.pdf

国外标准,其他规范
文档页数:2
文档大小:1.84MB
文档格式:pdf
文档分类:其他规范
上传会员:
上传日期:
最后更新:

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards Guides and Remendations issued by the World Trade Organization Technical Barriers to Trade (TBT)Committee. Designation:D8062-22 INTERNATIONAL Standard Specification for Purified Terephthalic Acid (PTA)with Low p-Toluic Acid1 This standard is issued under the fixed designation D8062:the number immediately following the designation indicates the year of original adoption or in the case of revision.the year of last revision.A number in parentheses indicates the year of last reapproval.A superseript epsilon (s)indicates an editorial change since the last revision or reapproval. 1.Scope* Terephthalic Acid by Capillary Electrophoresis with Re- 1.1 This specification covers purified terephthalic acid verse Voltage Mode (PTA)for use in the production of polyesters for superfine D7882 Test Method for Determination of denier fiber. 4-Carboxybenzaldehyde and p-Toluic Acid in Purified Terephthalic Acid by Capillary Electrophoresis with Nor- 1.2 The following applies to all specified limits in this mal Voltage Mode specification:for purposes of determining conformance with D7883 Test Method for Determination of this specification an observed value or a calculated value shall 4-Carboxybenzaldehyde and p-Toluic Acid in Purified be rounded off to the nearest unit in the last right-hand...

资源链接请先登录(扫码可直接登录、免注册)
十年老网站,真实资源!
高速直链,非网盘分享!浏览器直接下载、拒绝套路!
本站已在工信部及公安备案,真实可信!
手机扫码一键登录、无需填写资料及验证,支持QQ/微信/微博(建议QQ,支持手机快捷登录)
①升级会员方法:一键登录后->用户中心(右上角)->升级会员菜单
②注册登录、单独下载/升级会员、下载失败处理等任何问题,请加客服微信
不会操作?点此查看“会员注册登录方法”

投稿会员:匿名用户
我的头像

您必须才能评论!

手机扫码、免注册、直接登录

 注意:QQ登录支持手机端浏览器一键登录及扫码登录
微信仅支持手机扫码一键登录

账号密码登录(仅适用于原老用户)