GB/T 7602.1-2008Determination of T501 oxidation inhibitor content in transformer oil or turbine oil - Part 1: Spectrophotometric method (English PDF)
变压器油、汽轮机油中T501抗氧化剂含量测定法 第1部分：分光光度法
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
September 24, 2008
Implementation date
August 1, 2009
Scope
GB/T 7602.1-2008 is the English-translated version of 变压器油、汽轮机油中T501抗氧化剂含量测定法 第1部分：分光光度法.
GB/T 7602.1-2008 is the Chinese standard "Determination of T501 oxidation inhibitor content in transformer oil or turbine oil - Part 1: Spectrophotometric method".
Its scope clause reads: 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. Its clauses include method summary; equipment; reagents and materials.
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Document preview — GB/T 7602.1-2008
National Standard of the People's Republic of China
- ICS
- 75.100
- Classification
- E 38
- Replacing
- GB/T 7602-1987
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 3 Method Summary
- 4 Equipment
- 5 Reagents and materials
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 using 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 °C.
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.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Similar standards
Editions of GB/T 7602.1
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 7602.1-2008 | Determination of T501 oxidation inhibitor content in transformer oil or turbine oil - Part 1: Spectrophotometric method | current edition | Current |
| GB/T 7602-1987 | Determination of T501 oxidation inhibitor content in transformer oil or turbine oil - Part 1: Spectrophotometric method | previous edition | Superseded |
This page sells the current edition, GB/T 7602.1-2008. Earlier editions are listed for reference only.
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Related Standards
GB/T 7602.2-2008 — Determination of T501 oxidation inhibitor content in transformer oil or turbine oil - Part 2: Liquid chromatography
GB/T 7602.3-2008 — Determination of T501 oxidation inhibitor content in transformer oil or turbine oil - Part 3: Infrared spectroscopy method
GB/T 7602.4-2017 — Quantitative determination of T501 oxidation inhibitor content in transformer oil or turbine oil -- Part 4: GC/MS method
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