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GB/T 28125.2-2020 English PDF

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GB/T 28125.2-2020: (Gas analysis Determination of hazardous substances in air separation process - Part 2: Determination of mineral oil)
Status: Valid
Standard IDUSDBUY PDFLead-DaysStandard Title (Description)Status
GB/T 28125.2-2020169 Add to Cart 3 days (Gas analysis Determination of hazardous substances in air separation process - Part 2: Determination of mineral oil) Valid

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Basic data

Standard ID: GB/T 28125.2-2020 (GB/T28125.2-2020)
Description (Translated English): (Gas analysis Determination of hazardous substances in air separation process - Part 2: Determination of mineral oil)
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G86
Word Count Estimation: 9,948
Date of Issue: 2020-11-19
Date of Implementation: 2021-10-01
Regulation (derived from): National Standard Announcement No. 26 of 2020
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 28125.2-2020: (Gas analysis Determination of hazardous substances in air separation process - Part 2: Determination of mineral oil)


---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
(Gas analysis Determination of hazardous substances in air separation process Part 2.Determination of mineral oil) ICS 71.100.20 G86 National Standards of People's Republic of China Determination of hazardous substances in air separation process for gas analysis Part 2.Determination of mineral oil 2020-11-19 released 2021-10-01 implementation State Administration for Market Regulation Issued by the National Standardization Management Committee

Foreword

GB/T 28125 "Determination of Hazardous Substances in Gas Analysis and Air Separation Process" is temporarily divided into three parts. ---Part 1.Determination of hydrocarbons; ---Part 2.Determination of mineral oil; ---Part 3.Determination of nitrogen oxides. This part is Part 2 of GB/T 28125. This section was drafted in accordance with the rules given in GB/T 1.1-2009. This part was proposed by the China Petroleum and Chemical Industry Federation. This part is under the jurisdiction of the National Gas Standardization Technical Committee (SAC/TC206). Drafting organizations of this section. Shanghai Institute of Metrology and Testing Technology, Institute of Chemistry, China Academy of Testing Technology, Zhonghao Guangming Chemical Research Institute Research and Design Institute Co., Ltd., Southwest Chemical Research and Design Institute Co., Ltd., Guangzhou Metrology and Testing Technology Research Institute, Chengdu Environmental Science Research Institute Research Institute, Fuzhou Product Quality Inspection Institute, Sichuan University Analysis and Testing Center, China National Petroleum Corporation Southwest Oil and Gas Field Branch Division Chengdu Natural Gas Chemical General Plant, Sichuan Zhongce Standard Material Technology Co., Ltd., State Grid Jiangxi Electric Power Research Institute. The main drafters of this section. Jiang Yang, Yang Jiawei, Pan Yi, Chang Xia, Chen Yali, Chen Ying, Zhou Pengyun, Wang Weikang, Huang Jianlin, Wang Yating, Zou Zhen, Liu Qin, Xiong Dequan, Li Lirong, Huang Shenmin, Liu Ping. Determination of hazardous substances in air separation process for gas analysis Part 2.Determination of mineral oil

1 Scope

This part of GB/T 28125 specifies the method principles, reagents and materials, instruments and equipment for the determination of mineral oil content in air separation process gases. Preparation, sampling, determination of suspended oil, determination of steam oil, total mineral oil content, reports and precautions. This part is applicable to the determination of mineral oil content in oxygen, nitrogen, argon, helium and compressed air in the air separation process. mine The determination range of oil content is 0.001mg/m3~10mg/m3.

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article Pieces. For undated references, the latest version (including all amendments) applies to this document. GB/T 8984 Determination of carbon monoxide, carbon dioxide and hydrocarbons in gases by gas chromatography

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 mineral oil A mixture of C6 and above alkanes, cycloalkanes and aromatic hydrocarbons. 3.2 Suspended oil Mineral oil in granular form. 3.3 Steam oil Mineral oil in gaseous form.

4 Principle of the method

The mineral oil in the gas exists in two forms. suspended oil and steam oil. The sum of the two forms of oil content is the total content of mineral oil. The gas sample is filtered through a glass fiber filter membrane to filter the suspended oil, and the glass fiber filter membrane with the suspended oil is soaked in tetrachloroethylene to control the oil. The solution is fully dissolved, and the solution is measured with an infrared spectrophotometer. The activated carbon tube is used to adsorb the steam oil, and the activated carbon that adsorbs the steam oil is soaked and desorbed with carbon disulfide, and is equipped with hydrogen flame ion The gas chromatography of the chemical detector measures the solution.

5 Reagents and materials

5.1 Perchloroethylene. use 4cm cuvette, air pool as reference, scan between 3300cm-1~2600cm-1, absorbance does not exceed
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