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GB/T 3396-2022 English PDF

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GB/T 3396-2022: Determination of trace oxygen in ethylene and propylene for industrial use - Electrochemical method
Status: Valid

GB/T 3396: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 3396-2022English279 Add to Cart 3 days [Need to translate] Determination of trace oxygen in ethylene and propylene for industrial use - Electrochemical method Valid GB/T 3396-2022
GB/T 3396-2002English319 Add to Cart 3 days [Need to translate] Ethylene and propylene for industrial use -- Determination of trace oxygen -- Electrochemical method Obsolete GB/T 3396-2002
GB/T 3396-1982English199 Add to Cart 2 days [Need to translate] Determination of trace oxygen in polymerization grade ethylene or propylene--Galvanic cell method Obsolete GB/T 3396-1982

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Basic data

Standard ID GB/T 3396-2022 (GB/T3396-2022)
Description (Translated English) Determination of trace oxygen in ethylene and propylene for industrial use - Electrochemical method
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard G16
Classification of International Standard 71.080.10
Word Count Estimation 14,153
Date of Issue 2022-12-30
Date of Implementation 2023-07-01
Older Standard (superseded by this standard) GB/T 3396-2002
Issuing agency(ies) State Administration for Market Regulation, China National Standardization Administration

GB/T 3396-2022: Determination of trace oxygen in ethylene and propylene for industrial use - Electrochemical method


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ICS 71.080.10 CCSG16 National Standards of People's Republic of China Replacing GB/T 3396-2002 Determination of Trace Oxygen in Industrial Ethylene and Propylene Electrochemical method Posted on 2022-12-30 2023-07-01 implementation State Administration for Market Regulation Released by the National Standardization Management Committee

foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules for Standardization Documents" drafting. This document replaces GB/T 3396-2002 "Electrochemical method for the determination of trace oxygen in industrial ethylene and propylene", and GB/T 3396- Compared with.2002, except for structural adjustment and editorial changes, the main technical changes are as follows. a) Changed the range, added online analysis, and changed the measurement range of offline analysis (see Chapter 1, Chapter 1 of the.2002 edition); b) The principle has been changed, and the total reaction equation of the galvanic cell in the electrochemical method of the membrane-covered galvanic cell has been deleted (see Chapter 4,.2002 edition Chapter 3); c) A flash gasification unit is added (see 5.2.6, 5.4.1.3); d) Added requirements for sampling cylinders (see 5.2.7); e) Changed Figure 1, Figure 2, Figure 3 and Figure 4 (see Figure 1, Figure 2, Figure 3 and Figure 4, Figure 1, Figure 2, Figure 3 and Figure 4 of the.2002 edition); f) Added online analysis (see Chapter 1 and Chapter 6); g) Increased quality control (see Chapter 7). Please note that some contents of this document may refer to patents. The issuing agency of this document assumes no responsibility for identifying patents. This document is proposed by China Petroleum and Chemical Industry Federation. This document is under the jurisdiction of the National Chemical Standardization Technical Committee (SAC/TC63). This document is drafted by. Sinopec Shanghai Petrochemical Research Institute, Sinopec Yangzi Petrochemical Co., Ltd. Company, Wanhua Chemical Group Co., Ltd., Zhongan United Coal Chemical Co., Ltd. The main drafters of this document. Li Chengwei, Ding Daxi, Wang Chuan, Wen Yu, Zhang Wei, Ye Zhiliang, Shao Qiang, Guo Yuanfeng, Sun Shoujun. This document was first released in 1982, revised for the first time in.2002, and this is the second revision. Determination of Trace Oxygen in Industrial Ethylene and Propylene Electrochemical method WARNING. This document is not intended to address all safety issues related to its use. It is the user's responsibility to take appropriate safety and health health measures to ensure compliance with relevant national laws and regulations.

1 Scope

This document describes the off-line, electrochemical and electrolytic electrochemical methods of membrane-covered cells for the determination of trace oxygen in gaseous ethylene or propylene. online analysis method. The off-line analysis of this document is suitable for the determination of trace molecular oxygen in industrial ethylene and propylene with a content not less than 0.5mL/m3; on-line analysis is suitable for It is used to determine trace molecular oxygen in industrial ethylene and propylene whose content is not less than 0.1mL/m3.

2 Normative references

The contents of the following documents constitute the essential provisions of this document through normative references in the text. Among them, dated references For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document. GB/T 3723 General Rules for Sampling Safety of Industrial Chemical Products GB/T 3836 (all parts) Explosive atmospheres GB/T 6682 Analytical laboratory water specifications and test methods GB/T 8170 Numerical rounding off rules and expression and determination of limit values GB/T 13289 Industrial Ethylene Liquid and Gas Sampling Method GB/T 13290 Industrial Propylene and Butadiene Liquid Sampling Method GB/T 34042 General Specifications for On-line Analytical Instrument Systems GB 50058 Code for Design of Power Installations in Explosive Hazardous Atmospheres JJG945 Verification Regulations for Trace Oxygen Analyzer SH/T 3081 Petrochemical Instrument Grounding Design Code SH/T 3082 Specifications for design of power supply for petrochemical instruments SH/T 3097 Code for design of static grounding in petrochemical industry SH/T 3174 Petrochemical On-line Analyzer System Design Specifications

3 Terms and Definitions

This document does not have terms and definitions that need to be defined.

4 principles

4.1 Electrochemical method of membrane-covered galvanic cells When a gaseous ethylene or propylene sample flows through a measuring chamber equipped with a membrane-covered galvanic cell (fuel cell) at a constant flow rate, the oxygen in the sample gas

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