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1)  standard gas
标准气体
1.
The methods for preparation single component and mixed gas were related, as well as the special standard gas preparation method.
介绍标准气体的制备及杂质去除方法 ,包括单一组分纯气体的制备方法和混合气体的配制方法 ,5种常用气体的配制方法及特殊性质的标准气体的配制方法。
2.
For the preparation and applications of low concentration standard gas ,the inside surface of CL2X gas vessel and its piece with coatings were studied.
本研究采用特殊的化学处理方法,研制了新型低浓度标准气体包装容器。
3.
The importance of using the standard gases in the detection of the flammable gas alarm and their correct use are emphasized.
介绍可燃气体报警器的检测现状,分析可燃气体报警器检测元件中毒的原因,强调了检测可燃气体报警器时使用标准气体的重要性,以及标准气体的正确使用。
2)  calibration gases
标准气体
1.
The analysis method was introduced for micro-Oxygen in nitrogen calibration gases in this paper,at the same time we have definited the suitable analysis conditions and precision.
介绍了氮中微量氧标准气体的分析方法,给出了分析条件和方法的精密度,并对该标准气体配制的均匀性、稳定性的实验结果进行了分析与考察,对该气体标准物质的性能进行了评价。
2.
This paper reviewed the universality technology for calibration gases so that to prove veracity and unity of size of measurement of countrywide calibration gases and comparability of countrywide measure result.
主要叙述了标准气体的共性技术,以保证全国标准气体量值的准确统一和全国测量结果的可比性。
3.
This paper reviewed the methods of gravimetric for sulphur hexafluoride calibration gases and purity analysis and uncertainty combination,at the same time,we obtain the combination is dates of uncertainty based on ISO-6142 and GB / T 5274-1985.
介绍了氮中六氟化硫标准气体重量配制、纯度分析以及不确定度的合成方法,给出了根据ISO-6142及GB/T 5274—1985而得到不确定度的合成数据和最终不确定度1%的评价结果。
3)  standard gases
标准气体
1.
Several problems existed in the preparation of standard gases are introduced detailed,and concrete projects to solve these problems are put forward.
详细介绍了我国标准气体制备过程中存在的诸多问题,对如何解决这些问题提出了具体方案。
2.
Simply Introducing the compressibility factor effect on the gases preparationGiving the importance that specify the lowest working temperature for liquefiable standard gases;giving the meaning to grasp the calculus of explosion limit for multicomponents standard gases.
简单介绍压缩因子对气体制备的影响,提出规范液化性标准气体的最低使用温度的重要性;提出掌握多元标准气体爆炸极限计算的意义。
4)  reference gas
标准气体
1.
2 cm-1 spectra as the representative spectra in order to avoiding the influence of H2O,and we protract the standard curve about absorption index and concentration of HF by analyzing a series of different HF reference gases.
2 cm-1处的吸收峰作为HF的特征吸收峰,并通过对不同浓度的HF标准气体的分析建立了HF浓度与其特征吸收峰的吸光度相对应的标准曲线。
2.
2cm-1 spectra as the representative spectra in order to avoid the influence of H2O, and we protract the standard curve about absorption index and concentration of HF by analyzing a series of different HF reference gases.
2cm-1处的吸收峰作为氟化氢的特征吸收峰,并通过对不同浓度的氟化氢标准气体的分析建立了氟化氢浓度与其特征吸收峰的吸光度相对应的标准曲线。
5)  gas standardization
气体标准化
1.
Taking an enterprise as an example, the thesis has made thorough analysis on the importance and influence of gas standardization to the development of enterprises from multiple aspects.
以一个企业为例,从不同角度分析了气体标准化对企业发展的重要性和影响,分别从管理、产品过程、采用标准、标准物质应用等四方面标准化工作的开展介绍了气体标准化在企业开展的方向。
6)  nitrous oxide (N2O) calibration gases
N2O标准气体
1.
This paper reviewed of the gas chromatography methods (GC) of the nitrous oxide (N2O) calibration gases , The GC conditions and precision of methods were presented, and the uniformity, stability and the concentration variation as the pressure changing were observed and studied.
论述了温室气体监测用N2O标准气体气相色谱分析方法和条件,并对该标准气体配制的均匀性、稳定性及随压力变化的实验结果进行了分析与考察,对该气体标准物质的性能进行了评价。
补充资料:标准气体
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性质:标准气体属于标准物质。标准物质是高度均匀的、良好稳定和量值准确的测量标准,具有复现、保存和传递量值的基本作用,在物理、化学、生物与工程测量领域中用于校准测量仪器和测量过程,评价测量方法的准确度和检测实验室的检测能力,确定材料或产品的特性量值,进行量值仲裁等。大型乙烯厂、合成氨厂及其他石化企业,在装置开车,停车和正常生产过程中需要几十种纯气和几百种多组分标准混合气,用来校准,定标生产过程中使用的在线分析仪器和分析原料及产品质量的仪器。标准气还可用于环境监测、有毒的有机物测量,汽车排放气测试,天然气BTU测量,液化石油气校正标准,超临界流体工艺等。标准气视气体组分数区分为二元、三元和多元标准气体;配气准度要求以配气允差和分析允差来表征;比较通用的有SEMI配气允差标准,但各公司均有企业标准。组分的最低浓度为10-6级,组分数可多达20余种。配制方法可采用称重量法,然后用色谱分析校核,也可按标准传递程序进行传递。

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