制冷剂R134中不凝性气体的气相色谱法测定HH一GXGFZ一III填充柱

氟代甲烷制冷剂中的不凝性气体(ＮＣＧ)主要是由液相制冷剂中原始空气积累起来的。制冷剂中含有过高的ＮＣＧ会使制冷机械的参数发生变化,从而影响制冷效果。在和外商的业务往来中获悉,外商对制冷剂中ＮＣＧ含量十分重视。

气相中不凝性气体是制冷剂产品需要严格控制的一项质量指标。目前测定制冷剂气相中不凝性气体普遍采用的方法是美国空调供热和制冷工业协会标准AHRI700-2017《制冷剂规格》和我国GB/T 31400-2015《氟代烷烃不凝性气体(NCG)的测定气相色谱法》中规定的六通阀进样,外标法定量的气相色谱法。考虑到日常生产过程中玻璃注射器进样的方便快捷性,2017年5月1日新实施的GB/T 33063-2016《制冷剂用氟代烯烃不凝性气体(NCG)测定通用方法》中除外标法外新引入了采用玻璃注射器进样,校正面积归一化法定量的气相色谱法。

浩瀚色谱（山东）应用技术开发有限公司详细描述了标准中规定的两种方法,并对玻璃注射器进样,外标法定量的方法进行了探索研究,便于制冷剂领域分析操作人员对制冷剂气相中不凝性气体测定方法的掌握和应用。

名称：填充柱

型号：HH一GXGFZ一III

规格：3*1/8，100-120目

使用温度：270°C

编号：20220820001

The non-condensable gas (NCG) in the fluoromethane refrigerant is mainly accumulated by the original air in the liquid-phase refrigerant. Excessive NCG content in the refrigerant will change the parameters of the refrigeration machinery, thereby affecting the refrigeration effect. In business dealings with foreign businessmen, we learned that foreign businessmen attach great importance to the NCG content in refrigerants.

The non-condensable gas in the gas phase is a quality index that needs to be strictly controlled for refrigerant products. At present, the commonly used methods for the determination of non-condensable gases in the refrigerant gas phase in the industry are the American Air-Conditioning Heating and Refrigeration Industry Association standard AHRI700-2017 "Refrigerant Specifications" and my country&＃39;s national standard GB/T 31400-2015 "Fluoroalkane Non-condensable" The six-port valve injection specified in the Determination of Gas Chromatography (NCG), and the external standard method for quantitative gas chromatography. Taking into account the convenience and speed of glass syringe injection in the daily production process, the latest implementation of the national standard GB/T 33063-2016 "General Method for Determination of Fluoroolefin Non-Condensable Gas (NCG) for Refrigerants" on May 1, 2017 In addition to the external standard method in China, a new gas chromatographic method, which uses a glass syringe to inject samples and is quantified by the calibration area normalization method, is introduced.

Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. describes in detail the two methods specified in the standard, and explores and studies the methods of glass syringe injection and external standard method quantification, which is convenient for analytical operators in the field of refrigerants to analyze the gas phase of refrigerants. The mastery and application of the non-condensable gas determination method.

Name: Packed Column

Model: HH-GXGFZ-III

Specifications: 3*1/8, 100-120 mesh

Operating temperature: 270°C

Number: 20220820001