-
HG/T 5866-2021 精对苯二甲酸行业绿色工厂评价要求 Requirements of green factory's assessment for purified terephthalic acid industry
本标准规定了精对苯二甲酸（PTA）行业绿色工厂评价的总则、评价指标及要求、评价程序和评价报告。<br />本标准适用于精对苯二甲酸（PTA）企业绿色工厂的评价工作。...
2023-09-22 20:24:01浏览：30
查看 -
ASTM D7881-2019 用带反向电压模式的毛细管电泳测定精对苯二甲酸中对甲酰基苯甲酸和对甲苯甲酸的试验方法 Standard Test Method for Determination of 4-Carboxybenzaldehyde and p-Toluic Acid in Purified Terephthalic Acid by Capillary Electrophoresis with Reverse Voltage Mode
<div class="SectionLevel2"> <p class="subsec1 cdone2"><span class="Head3 cdone">1.1</span> This test method<span style="font-style:normal;"><span class="footnote-link">2</span></span> covers the determination of 4-carboxybenzaldehyde (4-CBA) and <span style="font-style:italic;font-weight:normal;" class="overriddenformat">p</span>-toluic acid (<span style="font-style:italic;font-weight:normal;" class="overriddenformat">p</span>-TOL) in purified terephthalic acid (PTA) by capillary electrophoresis (CE) with reverse voltage mode and UV detection. It is applicable for 4-CBA from 3 to 400 mg/kg and for <span style="font-style:italic;font-weight:normal;" class="overriddenformat">p</span>-TOL from 8 to 400 mg/kg, respectively.</p></div> <div class="SectionLevel2"> <p class="subsec1 cdone2"><span class="Head3 cdone">1.2</span> In determining the conformance of the test results using this method to applicable specification, results shall be rounded off in accordance with the rounding-off method of Practice <span class="Body-link1 cdone">E29</span>.</p></div> <div class="SectionLevel2"> <p class="subsec1 cdone2"><span class="Head3 cdone">1.3</span> The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.</p></div> <div class="SectionLevel2"> <p class="caveat cdone2"><span class="Head3 cdone">1.4</span> <i>This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.</i></p></div> <div class="SectionLevel2"> <p class="WTOcaveat cdone2"><span class="Head3 cdone">1.5</span> <i>This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Develo...
2023-09-07 20:12:01浏览：40
查看 -
HG/T 5866-2021 精对苯二甲酸行业绿色工厂评价要求
本标准规定了精对苯二甲酸（PTA）行业绿色工厂评价的总则、评价指标及要求、评价程序。<br />
本标准适用于精对苯二甲酸（PTA）企业绿色工厂的评价工作。...2023-03-07 01:24:02浏览：26
查看 -
SH/T 1612.5-1995工业用精对苯二甲酸中钛含量的测定 二安替吡啉甲烷分光光度法
本标准规定了测定工业用精对苯二甲酸中钛含量的分光光度法。<br>本标准适用于工业用PTA中含量在0.2mg/kg以上的钛的测起来定。...
2022-06-15 09:11:48浏览：40
查看 -
SH/T 1612.3-1995工业用精对苯二甲酸中金属含量的测定 原子吸收分光光度法
本标准规定了测定工业用精对苯二甲酸中铝、钙、铬、铁、钴、镁、锰、钼、镍、钾、钠等十一种金属含量的原子吸收分光光度法。<br>本标准适用于工业用PTA中含量在0.2mg/kg以上的上述各种金属元素的测定。...
2022-06-12 08:38:29浏览：44
查看 -
SH/T 1612.10-2005工业用精对苯二甲酸b*值的测定.色差计法Purified terephthalic acid for industrial use -- Determination of b* (CIE 1976) value -- Different color meter
本标准规定了工业用精对苯二甲酸b*值的测定方法。...
2022-06-10 07:53:18浏览：52
查看 -
SH/T 1612.4-1995工业用精对苯二甲酸中水含量的测定 卡尔费休容量法
本标准规定了测定工业用精对苯二甲酸中水含量的卡尔·费休容量法。<br>本标准适用于工业用PTA中含量大于0.01%的水分的测定。...
2022-06-08 16:24:42浏览：32
查看 -
-
UASB法处理PTA污水的设计
上流式厌氧污泥床(UASB)处理PTA污水可取得良好的效果,在工艺设计的过程中需要考虑到PTA污水在事故状态下的收集和污水的水质调节;UASB厌氧系统的设计要注意处理单元的合理划分、布水系统、三相分离器以及污泥培养四个方面的问题....
2020-09-25 09:10:57浏览：40
查看 -
UASB法处理PTA污水的设计
上流式厌氧污泥床(UASB)处理PTA污水可取得良好的效果,在工艺设计的过程中需要考虑到PTA污水在事故状态下的收集和污水的水质调节;UASB厌氧系统的设计要注意处理单元的合理划分、布水系统、三相分离器以及污泥培养四个方面的问题....
2020-03-24 08:35:55浏览：1416
查看 -
污水中氨氮测定方法的改进
文章研究了精对苯二甲酸(PTA)生产污水中杂质对氨氮测定方法的影响.实验结果表明,在进行氨氮测定前,必须对该污水进行特殊预处理,本文研究了预处理方法和条件....
2020-03-24 08:31:58浏览：1421
查看
