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GB/T 7602.1-2008 English PDF

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GB/T 7602.1-2008: Determination of T501 oxidation inhibitor content in transformer oil or turbine oil -- Part 1: spectrophotometric method
Status: Valid

GB/T 7602.1: Historical versions

Standard IDUSDBUY PDFLead-DaysStandard Title (Description)Status
GB/T 7602.1-2008139 Add to Cart 3 days Determination of T501 oxidation inhibitor content in transformer oil or turbine oil -- Part 1: spectrophotometric method Valid
GB/T 7602-1987199 Add to Cart 2 days Determination of T501 oxidation inhibitor content in transformer and turbine oils in service by spectrophotometric method Obsolete

Similar standards

DB11/ 238   DB11/ 239   DL/T 1498.2   GB/T 7602.4   GB/T 7603   GB/T 7602.3   

Basic data

Standard ID: GB/T 7602.1-2008 (GB/T7602.1-2008)
Description (Translated English): Determination of T501 oxidation inhibitor content in transformer oil or turbine oil -- Part 1: spectrophotometric method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: E38
Classification of International Standard: 75.100
Word Count Estimation: 6,612
Date of Issue: 2008-09-24
Date of Implementation: 2009-08-01
Older Standard (superseded by this standard): GB/T 7602-1987
Quoted Standard: GB/T 7597
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 added T501 (2, 6-di-tert- butyl- p-cresol) spectrophotometric method antioxidant content. This section applies to transformer oil, turbine oil measured in the anti- oxidant content of T501. Other oil measured T501 antioxidant content may also refer to this section.

GB/T 7602.1-2008: Determination of T501 oxidation inhibitor content in transformer oil or turbine oil -- Part 1: spectrophotometric 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 T501 oxidation inhibitor content in transformer oil or turbine oil Part 1. Spectrophotometric method ICS 75.100 E38 National Standards of People's Republic of China Replacing GB/T 7602-1987 Transformer oil, turbine oil T501 antioxidant content determination Part 1. spectrophotometry 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

GB/T 7602 "transformer oil, turbine oil T501 antioxidant content determination" is divided into three parts. Part 1. spectrophotometry; Part 2. liquid chromatography; Part 3. infrared spectroscopy. This section GB/T 7602 Part 1. This reference to the relevant part of the contents of IEC 60666. This Part replaces GB/T 7602-1987 "Run in turbine oil, transformer oil T501 antioxidant assay method (a spectrophotometer Law degree). " This part of GB/T 7602-1987 compared to the main technical content amended as follows. --- In operation decolorizing sample processing, extends the range of options decolorization adsorbent; --- Given during the preparation of base oil, oil T501 examine whether clean off basis; --- Provisions of the oil sample according to the method GB/T 7597 provisions acquisition; --- Retains the measurement principle and procedure of the original method; --- When measuring the absorbance, it provides pure water as reference. This section is proposed and managed by the China Electricity Council. This section is drafted. Xi'an Thermal Power Research Institute Co., Ltd., China Southern Power Grid, Guangzhou Power Supply Bureau. The main drafters of this section. Meng Yuchan, Liu Zhiyi, Yang Hongyan, RAO Rui, Huang Xiaohui. This part of the standard replaces the previous editions are. --- GB/T 7602-1987. Transformer oil, turbine oil T501 antioxidant content determination Part 1. spectrophotometry

1 Scope

This section provides transformer oil, turbine oil added T501 (2,6- tert-butyl-p-cresol) antioxidant content spectrophotometer test methods. This section applies to transformer oil, turbine oil T501 measured antioxidant content. Determination of other oil T501 antioxidant content also can refer to this section.

2 Normative references

The following documents contain provisions which, through GB/T reference in this 7602 constitute provisions of this part. For dated reference documents Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this section. GB/T 7597 Power oil (transformer oil, turbine oil) sampling method

3 Method Summary

The method is based on petroleum, ethanol as a solvent, phosphomolybdic acid as chromogenic agent, molybdenum blue complex according T501 antioxidant and phosphorus molybdic Was in absorbance at 700nm spectrophotometer, the absorbance values \u200b\u200busing the relationship with the T501 proportional to the amount determined transformer oil, turbine The oil T501 anti-oxidant content. The minimum detectable amount of 0.05%.

4 Equipment

4.1 Spectrophotometer. 700nm wavelength range including a wavelength spectrophotometer, wavelength accuracy of ± 3nm. 4.2 Analytical balance. accuracy 0.0001g. 4.3 Pipette. 2mL, 10mL. 4.4 Erlenmeyer flask. 150mL. 4.5 funnel. 125mL, 200mL. 4.6 volumetric flask. 100mL. 4.7 cylinder. 10mL, 50mL. 4.8 Beaker. 50mL. 4.9 Acid burette. 50mL. 4.10 water bath. temperature above 90 ℃. 4.11 blender.

5 Reagents and materials

5.1 ethanol. AR. 5.2 Potassium hydroxide. AR, dubbed 0.1mol/L of absolute ethanol. 5.3 phosphomolybdic acid. AR, dubbed a 5% ethanol solution, filtered in a brown bottle, into the dark place.
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