GB 2536-2025 English PDF

US$569.00 · In stock
Delivery: <= 5 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB 2536-2025: Fluids for electrotechnical applications - Unused mineral insulating oils for transformers and switchgear
Status: Valid

GB 2536: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB 2536-2025	569	Add to Cart	5 days	Fluids for electrotechnical applications - Unused mineral insulating oils for transformers and switchgear	Valid
GB 2536-2011	459	Add to Cart	4 days	Fluids for electrotechnical applications -- Unused mineral insulating oils for transformers and switchgear	Valid
GB 2536-1990	199	Add to Cart	2 days	Transformer oils	Obsolete

Similar standards

DL/T 1498.2   DL/T 1498.1   DL/T 1432.2   GB/T 7602.4   

Basic data

Standard ID: GB 2536-2025 (GB2536-2025)
Description (Translated English): Fluids for electrotechnical applications - Unused mineral insulating oils for transformers and switchgear
Sector / Industry: National Standard
Classification of Chinese Standard: E38
Classification of International Standard: 75.140
Word Count Estimation: 28,229
Date of Issue: 2025-06-30
Date of Implementation: 2026-07-01
Older Standard (superseded by this standard): GB 2536-2011
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

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

---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GB2536-2025
ICS 75.140 CCSE38 National Standard of the People's Republic of China Replaces GB 2536-2011 Unused electrical fluid transformers and switches Mineral insulating oil Released on June 30, 2025 Implementation on July 1, 2026 State Administration for Market Regulation The National Standardization Administration issued

Preface

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents" Drafting. This document replaces GB 2536-2011 "Unused mineral insulating oil for electrical fluid transformers and switches" Compared with GB 2536-2011, in addition to structural adjustments and editorial changes, the main technical changes are as follows (specific technical indicators are listed in Appendix A Changes). a) The scope of applicability has been changed (see Chapter 1, Chapter 1 of the.2011 edition); b) Added the terms and definitions “mineral insulating oil”, “passivator”, “circulating mineral insulating oil”, and changed the terms “antioxidant additive”, “non-antioxidant additive”, and “mineral insulating oil”. "Oil containing trace amounts of antioxidant additives", "Oil containing trace amounts of antioxidant additives", "Oil containing antioxidant additives", the term "charging tendency" has been deleted (see Chapter 3, Chapter 3 of the.2011 edition); c) Added the pour point test method NB/SH/T 0886 (see Table 1, Table 2 and Table 3); d) Added kinematic viscosity test method NB/SH/T 0870 (see Table 1, Table 2 and Table 3); e) Added the water content test method NB/T 42140 (see Table 1, Table 2 and Table 3); f) The footnotes for treated oil in the breakdown voltage item have been changed (see Tables 1, 2 and 3,.2011 edition); g) Added “color number”, “potential corrosive sulfur”, “dibenzyl disulfide (DBDS) content”, “metal passivator content”, “other additives "Content" technical requirements (see Table 1, Table 2 and Table 3) and "Gas Production Characteristics" technical requirements (see Table 2); h) Changed the "interfacial tension" and "total sulfur content (mass fraction)" of transformer oil (special) and "antioxidant content" of trace antioxidant additive oil. Chemical additive content (mass fraction)" (see Table 1, Table 1 of the.2011 edition); i) The item “2-furfural content” was changed to “2-furfural and related components content”, and the item index and corresponding footnotes were changed (see Table 1, Tables 2 and 3, Tables 1, 2, and 3 of the.2011 edition); j) Added footnotes for oxidation stability test time (see Table 1, Table 2 and Table 3); k) Modified the index of “Condensed Ring Aromatic Hydrocarbons (PCA) Content (Mass Fraction)” (see Table 1, Table 2 and Table 3,.2011 Edition Table 1, Tables 2 and 3); l) The factory inspection requirements have been changed (see 6.1.1, 6.1.1 of the.2011 edition); m) Added normative Appendix E “Test method for gas production characteristics under thermal stress” (see Appendix E). This document is modified to adopt IEC 60296.2020 "Mineral insulating oils for use in electrical equipment with electrotechnical fluids". Compared with IEC 60296.2020, this document has many structural adjustments. See Appendix B. This document has many technical differences compared to IEC 60296.2020. A list of these technical differences and their causes is given in Appendix C. The following editorial changes have been made to this document. --- The name of the standard was changed to "Unused mineral insulating oil for electrical fluid transformers and switches"; --- Replaced some informative references with Chinese standards; --- Added informative appendix A, appendix B and appendix C. Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document is proposed and coordinated by the National Energy Administration. This document was first published in.1990, revised for the first time in.2011, and this is the second revision. Unused electrical fluid transformers and switches Mineral insulating oil Warning. If appropriate precautions are not followed, the products covered by this document may be dangerous during production, storage, transportation and use. This document is not intended to provide advice on all safety issues associated with this product. It is the user's responsibility to establish appropriate safety and health measures and determine the applicability of relevant regulatory limitations.

1 Scope

This document defines the technical terms for unused mineral insulating oils with or without additives, obtained from refined petroleum fractions. It specifies the terms and definitions, classification and marking, requirements and test methods, inspection rules and marking, packaging, transportation and storage. This document applies to mineral insulating oils used in transformers, switches and similar electrical equipment that require oil as an insulating and heat transfer medium. Refer to this document for generator oil. This document is not applicable to circulating mineral insulating oils. This document does not apply to mineral insulating oils used as impregnating agents in cables or capacitors. NOTE. Oils that meet the requirements of this document, are of the same category and do not contain any additives (see 3.4) are considered compatible and can be mixed in any proportion. This does not necessarily apply to oils containing additives. When the user wishes to mix oils containing additives, first test to ensure that the mixture meets the requirements of this document. Require.

2 Normative references

The contents of the following documents constitute the essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document. GB/T 259 Determination of water-soluble acids and bases in petroleum products GB/T 261 Determination of flash point—Pensky-Martin closed cup method (GB/T 261-2021, ISO 2719.2016, MOD) GB/T 262 Petroleum products and hydrocarbon solvents Determination of aniline point and mixed aniline point (GB/T 262-2010, ISO 2977- 1997, MOD) GB/T 265 Determination of kinematic viscosity and calculation of dynamic viscosity of petroleum products GB/T 507 Determination of the breakdown voltage of insulating oils (GB/T 507-2002, eqvIEC 156.1995) GB/T 511 Petroleum, petroleum products and additives - Determination of mechanical impurities GB/T 1884 Laboratory method for determination of density of crude oil and liquid petroleum products (density meter method) (GB/T 1884-2000, eqv ISO 3675.1998) GB/T 1885 Petroleum Meters (GB/T 1885-1998, eqv ISO 91-2.1991) GB/T 3535 Determination of pour point of petroleum products (GB/T 3535-2006, ISO 3016.1994, MOD) GB/T 4756 Manual Sampling of Petroleum Liquids (GB/T 4756-2015, ISO 3170.2004, MOD) GB/T 5654 Measurement of relative permittivity, dielectric loss factor and DC resistivity of liquid insulating materials (GB/T 5654- 2007,IEC 60247.2004,IDT) GB/T 6540 Determination of color of petroleum products GB/T 6541 Petroleum products - Determination of interfacial tension of oil against water (ring method) ......

Image     

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB 2536-2025_English be delivered?

Answer: Upon your order, we will start to translate GB 2536-2025_English as soon as possible, and keep you informed of the progress. The lead time is typically 3 ~ 5 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB 2536-2025_English with my colleagues?

Answer: Yes. The purchased PDF of GB 2536-2025_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.

Question 5: Should I purchase the latest version GB 2536-2025?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB 2536-2025 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.