GB/T 7601-2008 English PDF

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GB/T 7601-2008: Determination of water content for transformer and turbine oils in service by gas chromatographic method
Status: Valid

GB/T 7601: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 7601-2008	139	Add to Cart	3 days	Determination of water content for transformer and turbine oils in service by gas chromatographic method	Valid
GB/T 7601-1987	199	Add to Cart	2 days	Determination of water content in transformer oils in service by gas chromatographic method	Obsolete

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Basic data

Standard ID: GB/T 7601-2008 (GB/T7601-2008)
Description (Translated English): Determination of water content for transformer and turbine oils in service by gas chromatographic method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: E38
Classification of International Standard: 75.100
Word Count Estimation: 6,617
Date of Issue: 2008-09-24
Date of Implementation: 2009-08-01
Older Standard (superseded by this standard): GB/T 7601-1987
Quoted Standard: GB/T 7597; GB/T 17623
Regulation (derived from): National Standard Approval Announcement 2008 No.16 (Total No.129)
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 transformer oil, turbine oil and hydrogen-cooled generator set with seal oil by Gas Chromatography moisture content. This standard applies to transformer oil, turbine oils and determination of hydrogen-cooled generator set with seal oil in the water. Determination of water content in other oils may also refer to this standard.

GB/T 7601-2008: Determination of water content for transformer and turbine oils in service by gas chromatographic 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 water content for transformer and turbine oils in service by gas chromatographic method ICS 75.100 E38 National Standards of People's Republic of China Replacing GB/T 7601-1987 In transformer oil, turbine oil Determination of water (Gas chromatography) Posted 2008-09-24 2009-08-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard replaces GB/T 7601-1987 "Determination of transformer oil in water (gas chromatography)." This standard and GB/T 7601-1987 comparison, the following major changes. --- The scope of application to extend the transformer oil turbine oil, seal oil; --- Retained the original principle of the method; --- Provides a gas chromatograph or with special needs vapor-liquid separation and collection of residual functions; --- Commonly recommended gas chromatographic stationary phases and the flow path and the reference chromatographic operating conditions; --- Recommended analyzed using standard oil sample, removed the original standard recommended saturated with n-heptane as a standard curve and the results in terms of step; --- Specifies the procedure; --- Gives the results of the calculation method; --- Proposed method precision. This standard is proposed and managed by the China Electricity Council. This standard was drafted. Xi'an Thermal Power Research Institute Co., Ltd., Dongguan Power Bureau, Guangdong Electric Power Test & Research Institute. The main drafters of this standard. Meng Yuchan, Yin fertile strong, Liuxiang Ping Kwong Hongying, clever vibration. The standard commission Xi'an Thermal Power Research Institute Co., Ltd. is responsible for interpretation. This standard replaces the standards previously issued as follows. --- GB/T 7601-1987. In transformer oil, turbine oil Determination of water (Gas chromatography)

1 Scope

This standard specifies the transformer oil, turbine oil and hydrogen-cooled generator sets seal oil by Gas Chromatography moisture content. This standard applies to transformer oil, turbine oil and hydrogen-cooled generators measuring moisture in oil with the seal. Determination of moisture content in other oils may also refer to this standard.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 7597 Power oil GB/T 17623 gases dissolved in insulating oil component content of the gas chromatographic method (GB/T 17623-1998IEC 567.1992, NEQ)

3 Method Summary

Firstly, according to the provisions of the GB/T 7597 acquisition tested oil sample, then use special gas chromatograph vaporization, separation, detection, by noting Logger or chromatographic data processor with a standard oil sample comparison result of the calculation, results in mg/L. 4 equipment, materials 4.1 Gas Chromatograph 4.1.1 injector with injection vaporization, separation and collection of residual functions. 4.1.2 detector, thermal conductivity detector (TCD), the minimum detectable concentration. less than 0.5mg/L. 4.1.3 Column 4.1.3.1 within polished stainless steel column. diameter 3mm, length 1m. 4.1.3.2 Stationary phase. porous polymer microsphere GDX-103 or GDX-105 (60 mesh to 80 mesh). 4.1.3.3 Separation. oil and water peak adjacent peak separation R is greater than 1. 4.1.4 Process Common chromatographic process shown in Figure 1. Figure 1 schematically conventional chromatography process ......

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