GB 2536-2025 Pending National standards force_standard

GB 2536-2025 Fluids for electrotechnical applications—Unused mineral insulating oils for transformers and switchgear

GB 2536-2025 Fluids for electrotechnical applications—Unused mineral insulating oils for transformers and switchgear

Publish Date: 2025-06-30 Implement Date: 2026-07-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB 2536-2025
Standard Type: National standards
Standard Status: Pending
is_force_gb: yes
CCS Name: Insulating oil
ICS Name: Paraffin, asphalt materials, and other petroleum products
Publish Date: 2025-06-30
Implement Date: 2026-07-01
Pages: 32 pages

Scope

This document defines the terms and definitions of unused mineral insulating oil containing and not containing additives, which is obtained by refining petroleum fractions as raw materials. It stipulates the classification and marking, requirements and test methods, inspection rules and marking, packaging, transportation and storage. This document is applicable to mineral insulating oil used in transformers, switches, and similar electrical equipment that require oil as an insulating and heat transfer medium. Generator oil should refer to this document. This document is not applicable to recycled mineral insulating oil. This document is not applicable to mineral insulating oil used as an impregnating agent in cables or capacitors. Note: Oils of the same category and not containing any additives (see 3.4) that meet the requirements of this document are considered compatible and can be mixed in any proportion. This does not necessarily apply to oils containing additives. When users wish to mix oils containing additives, they should first conduct tests to ensure that the mixture meets the requirements of this document.

Development Information

Word Count: 46 Thousand words Pages: 32 pages

Replace the following standards

Referenced Standards

GB/T 259-1988 Petroleum products—Determination of water-soluble acids and alkalis GB/T 261-1983 Petroleum products—Determination of flash point—Closed cup method GB/T 261-2008 Determination of flash point—Pensky-Martens closed cup method GB/T 261-2021 Determination of flash point—Pensky-Martens closed cup method GB/T 262-1988 Petroleum products—Determination of aniline point GB/T 262-2010 Petroleum products and hydrocarbon solvents—Determination of aniline point and mixed aniline point GB/T 265-1988 Petroleum products—Determination of kinematic viscosity and calculation of dynamic viscosity GB/T 507-2002 Insulating liquids—Determination of the breakdown voltage at power frequency GB/T 511-1988 Petroleum products and additives—Determination of mechanical impurities—Gravimetric method GB/T 511-2010 Petroleum,petroleum products and additives—Method for determination of mechanical admixtures GB/T 1884-2000 Crude petroleum and liquid petroleum products—Laboratory determination of density—Hydrometer method GB/T 1885-1998 Petroleum measurement tables GB/T 3535-1983 Petroleum oils—Determination of pour point GB/T 3535-2006 Petroleum products—Determination of pour point GB/T 3535-2025 Determination of pour point for petroleum products GB/T 4756-1998 Petroleum liquids—Manual sampling GB/T 4756-2015 Method for manual sampling of petroleum liquids GB/T 5654-1985 Measurement of relative permittivity, dielectric dissipation factor at power frequency and volume resistivity of insulating liquids GB/T 5654-2007 Insulating liquids—Measurement of relative permittivity,dielectric dissipation factor and d.c.resistivity GB/T 6540-1986 Petroleum products—Determination of colour GB/T 6540-2025 Determination for colour of petroleum products GB/T 6541-1986 Petroleum products—Mineral oils—Determination of interfacial tension of oil against water—Ring method GB 7597-1987 Method of sampling for transformer and turbine oils in electric power industry GB/T 7597-2007 Method of sampling for transformer and turbine oils in electric power industry GB/T 7600-2014 Determination of water content in transformer oils and turbine oils in service by coulometric method GB/T 11140-1989 Petroleum products—Determination of sulfur—X-ray spectrometry GB/T 11140-2008 Standard test method for sulfur in petroleum products by wavelength dispersive X-ray fluorescence spectrometry GB/T 14542-1993 Guide for maintenance and supervision of transformer oil in service GB/T 14542-2005 Guide for maintenance and supervision of transformer oil in service GB/T 14542-2017 Guide for maintenance and supervision of transformer oil GB/T 15724-2008 Laboratory glassware—Beakers GB/T 15724-2024 Laboratory glassware—Beakers GB/T 15724.1-1995 Laboratory glassware—Beaker GB/T 15724.2-1995 Laboratory glassware—Conical beaker GB/T 17040-1997 Petroleum products—Determination of sulfur—Energy-dispersive X-ray fluorescence spectroscopy GB/T 17040-2008 Standard test method for sulfur in petroleum and petroleum products by energy dispersive X-ray fluorescence spectrometry GB/T 17040-2019 Determination of sulfur in petroleum and petroleum products—Energy dispersive X-ray fluorescence spectrometry GB/T 17623-1998 Determination of componental contents of gases dissolved in insulating oil by gas chromatography method GB/T 17623-2017 Determination of componental contents of gases dissolvedin insulating oil by gas chromatography method GB/T 21216-2007 Insulating liquids—Determination of the dielectric dissipation factor by measurement of the conductance and capacitance—Test method GB/T 25961-2010 Standard test method for corrosive sulfur in electrical insulating oils GB/T 32508-2016 Quantitative determination of corrosive sulfur(dibenzyl disulfide,DBDS) in insulating liquids DL/T 285-2012 Mineral insulating oil corrosiveness sulfur detection method: coating insulated paper copper strip method DL/T 385-2010 Transformer Oil Electrostatic Susceptibility Detection Method DL/T 419-2015 DL/T 419-2015 Vocabulary for Oil Used in Electric Power Industry DL/T 1459-2015 Determination of Metal Passivating Agent Content in Mineral Insulating Oil by High Performance Liquid Chromatography (HPLC) NB/T 42140-2017 NB/T 42140-2017 Insulation liquid: Automatic Karl Fischer titration method for determination of moisture in oil-immersed paper and paperboard NB/SH/T 0164-2019 Rules for packaging, storage and transportation of petroleum and related products, as well as acceptance and delivery inspection NB/SH/T 0253 NB/SH/T 0802-2019 Determination of 2,6-Di-tert-butyl-p-cresol in insulating oil by infrared spectroscopy NB/SH/T 0810-2010 The method for measuring the gas generation of insulating liquids under the action of electric field and ionization NB/SH/T 0811-2023 Insulation oil oxidation stability test method NB/SH/T 0811-2010 The method for determining the oxidative stability of unused hydrocarbon insulating oil NB/SH/T 0812 NB/SH/T 0836-2010 Determination of acid value of insulating oil using automatic potentiometric titration method NB/SH/T 0837-2010 Mineral Insulating Oil Low Temperature Viscosity Determination Method NB/SH/T 0838-2010 Determination of PCA content in unused lubricant base oil and asphaltene-free petroleum fractions using n-butanol extraction and refractive index method NB/SH/T 0870-2013 Determination of dynamic viscosity and density of petroleum products and calculation of dynamic viscosity using Stableberg viscosity meter method NB/SH/T 0886-2014 Determination of the pour point of petroleum products using automatic tilting method SH/T 0604-2000 Crude petroleum and petroleum products--Determination of density--Oscillationg U-tube method SH/T 0689-2000 Standard test method for determination of total sulfur in light hydrocarbons,motor fuels and oils by ultraviolet fluorescence SH/T 0792-2007 SH/T 0792-2007 Determination of 2,6-di-tert-butyl-p-cresol and 2,6-di-tert-butylphenol content in electrical insulating oils by infrared absorption spectroscopy method SH/T 0803-2007 Determination of Polychlorinated Biphenyls in Insulating Oil by Capillary Gas Chromatography SH/T 0804-2007 Electrical insulating oil sulfur corrosion test using silver plate method ISO 14596 IEC 60475

Adopt standards

IEC 60296:2020

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