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GB/T 7602.3-2008 English PDF

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GB/T 7602.3-2008: Determination of T501 oxidation inhibitor content in transformer oil or turbine oil -- Part 3: Infrared spectroscopy method
Status: Valid
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GB/T 7602.3-2008English189 Add to Cart 3 days [Need to translate] Determination of T501 oxidation inhibitor content in transformer oil or turbine oil -- Part 3: Infrared spectroscopy method Valid GB/T 7602.3-2008

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Basic data

Standard ID GB/T 7602.3-2008 (GB/T7602.3-2008)
Description (Translated English) Determination of T501 oxidation inhibitor content in transformer oil or turbine oil -- Part 3: Infrared spectroscopy method
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard E38
Classification of International Standard 75.100; 29.040.10
Word Count Estimation 8,870
Date of Issue 2008-12-30
Date of Implementation 2009-10-01
Regulation (derived from) National Standard Approval Announcement 2008 No.23 (Total No.136)
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 determination of transformer oil and turbine oil T501 (2, 6-di-tert- butyl- p-cresol) antioxidant content of infrared spectroscopy. This section applies to the determination of unused or used transformer oil and turbine oil T501 antioxidant content.

GB/T 7602.3-2008: Determination of T501 oxidation inhibitor content in transformer oil or turbine oil -- Part 3: Infrared spectroscopy method


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Determination of T501 oxidation inhibitor content in transformer oil or turbine oil Part 3. Infrared spectroscopy method ICS 75.100; 29.040.10 E38 National Standards of People's Republic of China Transformer oil, turbine oil T501 antioxidant content determination Part 3. Infrared Spectroscopy Posted 2008-12-30 2009-10-01 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 3. When this part of the development with reference to the ASTMD2668 content. 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, Yang Hongyan, Chen Zhixiang, Liu Zhiyi, Huang Xiaohui. Transformer oil, turbine oil T501 antioxidant content determination Part 3. Infrared Spectroscopy

1 Scope

This section specifies the determination of transformer oil and turbine oil T501 (2,6- tert-butyl-p-cresol) antioxidant content of IR method. This section applies to the determination of unused or used transformer oil and turbine oil T501 antioxidant content.

2 Normative references

The following documents contain provisions which, through reference in this text, constitute provisions of this part. 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 (transformer oil, turbine oil) sampling method

3 Method Summary

This part is the use of transformer oil and turbine oil after the addition of the wave number T501 antioxidant 3650cm-1 (2.74μm) Appears at the phenolic hydroxyl stretching vibration absorption peak absorbance is proportional to the concentration of the relationship between the T501 and the absorption peak through the standard curve, thereby Determined percentage of its quality in the oil sample. The minimum detection limit. 0.005%.

4 Equipment

4.1 infrared spectrophotometer. 4.2 Analytical balance. accuracy 0.0001g. 4.3 liquid-absorbing pool. transparent in 3800cm-1 ~ 3500cm-1 Scope, any material non-selective absorption of the cell window (common Cell window has KBr, NaCl), the optical path length of 0.3mm ~ 1.0mm (also depending on the instrument status, choose the appropriate path length) of the absorption cell. 4.4 suction ears ball. 4.5 glass syringes. 1mL ~ 2mL. 4.6 stirrer.

5 Reagents and materials

5.1 CTC. chemically pure. 5.2 2,6 BHT. chemically pure. Concentrated sulfuric acid 5.3. Density 1.84g/cm3,98%, AR. 5.4 drying clay. clay particle size less than 200 mesh to about 500g, at 120 ℃ drying 1h, stored in a dryer.

6 Preparations

6.1 oil sample collection Oil samples were collected in accordance with GB/T 7597 carried out.

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