GB/T 5832.1-2016 English PDF

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GB/T 5832.1-2016: Determination of moisture in gases -- Part 1: Electrolytic method
Status: Valid

GB/T 5832.1: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 5832.1-2016	119	Add to Cart	3 days	Determination of moisture in gases -- Part 1: Electrolytic method	Valid
GB/T 5832.1-2003	279	Add to Cart	3 days	Determination of moisture in gases -- Part 1: Electrolytic method	Obsolete
GB/T 5832.1-1986	199	Add to Cart	2 days	Determination of trace water in the gases--Electrolytic method	Obsolete

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Basic data

Standard ID: GB/T 5832.1-2016 (GB/T5832.1-2016)
Description (Translated English): Determination of moisture in gases -- Part 1: Electrolytic method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G86
Word Count Estimation: 6,652
Date of Issue: 2016-12-13
Date of Implementation: 2017-07-01
Older Standard (superseded by this standard): GB/T 5832.1-2003
Quoted Standard: GB/T 3723; GB/T 5832.2; GB/T 6379.2
Regulation (derived from): National Standard Announcement No.63 of 2016
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the method of electrolysis to measure trace moisture in the gas, describes the principle of the method, the instrument, instrument calibration, measurement matters, precision, results processing, test report made the request. This standard is applicable to the determination of trace moisture in gases such as nitrogen, helium, neon, argon, krypton, xenon, carbon dioxide and other gases which do not react with phosphorus pentoxide except for moisture absorption. The measuring range is 0.1X10 ^ 1000X10 ^ -6 (volume fraction).

GB/T 5832.1-2016: Determination of moisture in gases -- Part 1: Electrolytic method

---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.
Determination of moisture in gases - Part 1. Electrolytic method ICS 71.040.40 G86 National Standards of People's Republic of China Replace GB/T 5832.1-2003 Gas analysis - Determination of trace moisture Part 1. electrolysis Gasanalysis-Determination of moisture-Part 1. Electrolyticmethod 2016-12-13 released 2017-07-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Management Committee released

Foreword

GB/T 5832 "Determination of trace moisture in gas analysis" is divided into multiple parts, currently divided into three parts. - Part 1. Electrolysis; Part 2. dew point method; Part 3. Optical cavity ring - down spectroscopy. This part is part 1 of GB/T 5832. This part is drafted in accordance with the rules given in GB/T 1.1-2009. This part of the replacement GB/T 5832.1-2003 "Determination of gas humidity Part 1. electrolysis", and GB/T 5832.1-2003 phase In addition to editorial changes other than the main technical changes are as follows. --- Standard name changed to "Determination of trace moisture in gas analysis Part 1. Electrolysis"; - modified the scope of the determination (see Chapter 1, Chapter 1 of the.2003 edition); - modified normative reference documents (see Chapter 2, Chapter 2 of the.2003 edition); - the terms and definitions were deleted (see Chapter 3 of the.2003 edition); - modified the principle of the method (see Chapter 3, Chapter 4 of the.2003 edition); - modified the requirements of the instrument (see Chapter 4, Chapter 5 of the.2003 edition); - increased requirements for instrument calibration (see Chapter 5); - modified the sampling requirements (see 6.1,.2003, 6.1); - modified the measurement steps (see 6.2,.2003 6.2); - modified the requirements for precision (see Chapter 7, Chapter 7 of the.2003 edition); --- Increased requirements for processing of results (see Chapter 8); --- Amendments to the note (see Chapter 9, Chapter 8, Chapter 9 of the.2003 edition); - modified the test report (see Chapter 10, Chapter 10 of the.2003 edition); - Appendix A has been deleted (see Appendix A of the.2003 edition). This section is proposed by the China Petroleum and Chemical Industry Association. This part is headed by the National Gas Standardization Technical Committee Subcommittee on Gas Analysis Subcommittee (SAC/TC206/SC1). This part of the drafting unit. Southwest Chemical Research and Design Institute Co., Ltd., Beijing Huayu Tongfang Chemical Technology Development Co., Ltd., Tianjin Chemical Co., Ltd., Beijing Gao Maike Instrument Technology Co., Ltd., Guangdong Huate Gas Co., Ltd., Sichuan in the measured standard technology Ltd., Shanghai Chang Ai Electronic Technology Co., Ltd., Xi'an tripod research and technology limited liability company, Shanghai Hua love Chromatography Technology Co., Ltd., large Even the big special gas Co., Ltd., Suzhou Jinhong Gas Co., Ltd., in the bright Chemical Research and Design Institute Co., Ltd., Sichuan Desheng Group Vanadium and titanium limited company. This part of the main drafters. Chen Yali, Jiang Luo, Xue Ding, Fu Zhuhong, Du Hansheng, Zhang Wen, Pu Youqiang, Shi Zhaoqi, Fang Hua, Jin Xianghua, Sun Meng, Chang Xia, Li Bing This part of the previous version of the standard to replace the release of the situation. --- GB/T 5832.1-1986, GB/T 5832.1-2003. Gas analysis - Determination of trace moisture Part 1. electrolysis

1 Scope

This part of GB/T 5832 specifies the method of electrolysis for the determination of trace moisture in the gas, describes the principle of the method, Equipment calibration, measurement matters, precision, results processing, test reports made a request. This part applies to nitrogen, helium, neon, argon, krypton, xenon, carbon dioxide and other reactions that do not react with phosphorus pentoxide except for moisture absorption Of the determination of trace water in the gas, the determination of the range. 0.1 × 10-6 ~ 1000 × 10-6 (volume fraction).

2 normative reference documents

The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article Pieces. For undated references, the latest edition (including all modifications) applies to this document. General rules for sampling safety of industrial chemical products GB/T 3723 Gas analysis - Determination of trace moisture - Part 2. Dew point method GB/T GB/T 6379.2 Accuracy of measurement methods and results (accuracy and precision) - Part 2. Determination of standard measurement methods The basic method of sex and reproducibility

3 Principle of the method

A DC voltage is applied between the two electrodes of the cell, and the moisture in the gas is absorbed by the damp film of the pool hygroscopic agent and is electrolyzed to Hydrogen and oxygen. Known ambient temperature, ambient pressure and sample gas flow, according to Faraday's law of electrolysis and gas law can be derived from the electrolysis of water The relationship between the flow and the moisture content in the gas sample is given by (1). I = Q × p × T0 × F × U × 10-4 3p0 × T × V0 (1) Where. I - the electrolysis current of water, the unit is microan (μA); Q - sample air flow in milliliters per minute (mL/min); p - environmental pressure in Pa (Pa); T0 --- ambient temperature under standard conditions, 273.15K; F - Faraday constant, 96485.3383C/mol; U - moisture content of sample gas (volume fraction), × 10-6; p0 --- ambient pressure under standard conditions, 101325Pa; T --- the absolute temperature of the environment, the unit is open (K); V0 --- molar volume of sample gas in standard state, expressed in liters per mole (L/mol). It can be seen from the formula (1) that the size of the electrolysis current is proportional to the moisture content in the gas. Set at standard atmospheric pressure and 20 ℃ conditions, an ideal gas The flow rate of the sample gas flows through the electrolytic cell at a flow rate of 100 mL/min. When the moisture content (volume fraction) of the sample gas is 1 × 10-6, The electrolysis current of water is 13.4μA. ......

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