HOME   Cart(0)   Quotation   About-Us Policy PDFs Standard-List
www.ChineseStandard.net Database: 189759 (19 Oct 2025)

GB/T 32508-2016 English PDF

US$299.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 32508-2016: Quantitative determination of corrosive sulfur (dibenzyl disulfide, DBDS) in insulating liquids
Status: Valid
Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 32508-2016English299 Add to Cart 3 days [Need to translate] Quantitative determination of corrosive sulfur (dibenzyl disulfide, DBDS) in insulating liquids Valid GB/T 32508-2016

PDF similar to GB/T 32508-2016


Standard similar to GB/T 32508-2016

DB11/ 239   DB11/ 238   DL/T 1498.2   GB/T 28552   GB/T 25961   

Basic data

Standard ID GB/T 32508-2016 (GB/T32508-2016)
Description (Translated English) Quantitative determination of corrosive sulfur (dibenzyl disulfide, DBDS) in insulating liquids
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard E38
Classification of International Standard 29.040
Word Count Estimation 15,133
Date of Issue 2016-02-24
Date of Implementation 2016-09-01
Quoted Standard GB/T 7597
Adopted Standard IEC 62697-1-2012, MOD
Regulation (derived from) National Standard Announcement No
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 a method for the quantitative determination of corrosive sulfur (dibenzyl disulfide) in insulating oil. This standard is applicable to the determination of corrosive sulfur (dibenzyl disulfide) content in insulating oil for unused and running applications. The concentration range is 5 mg/kg to 600 mg/kg.

GB/T 32508-2016: Quantitative determination of corrosive sulfur (dibenzyl disulfide, DBDS) in insulating liquids


---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.
Quantitative determination of corrosive sulfur (dibenzyl disulfide, DBDS) in the ICS 29.040 E38 National Standards of People's Republic of China Corrosive sulfur (dibenzyl disulfide) in insulating oil Quantitative detection method Quantitativedetermination ofcorrosivesulfur (dibenzyldisulfide, DBDS) in [IEC 62697-1..2012, Testmethodsforquantitativedetermination ofcorrosive sulfurcompoundsinunusedandusedinsulatingliquids-Part 1. Test methodforquantitconfivedeterminationofdibenzyldisulfide (DBDS), MOD] 2016-02-24 released 2016-09-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Management Committee released Directory Preface III 1 Scope 1 2 normative reference document 1 3 Terms and definitions 1 4 Gas Chromatography - Mass Spectrometry 1 Gas Chromatography - Electron Capture Detector Method 6 results calculated 5 7 precision 5 8 Test Report 6 Appendix A (informative) The structural differences between the standard section number of this standard and IEC 62697-1..2012 Article 7 Appendix B (informative) The technical differences between this standard and IEC 62697-1..2012 and its causes 8

Foreword

This standard is drafted in accordance with the rules given in GB/T 1.1-2009. This standard uses the re-drafting method to modify the use of IEC 62697-1..2012 "Unused and operated mineral insulating oil in the amount of corrosive sulfur Methods of detection - Part I. Quantitative detection of dibenzyl disulfide. Compared with IEC 62697-1..2012, the main changes and differences are as follows. Preparation of dibenzyl disulfide mother liquor; A sample pretreatment method for gas chromatography - mass spectrometry; Preparation method of diphenyl disulfide internal standard mother liquor; --- increase the GB/T 7597 power oil (transformer oil, turbine oil) sampling method. For the purpose of comparison, the structural differences between the standard section number and IEC 62697-1..2012 section numbers are given in Appendix A According to the list, Appendix B gives a list of technical differences and their causes for this standard and IEC 62697-1..2012. This standard is proposed by the China Electricity Council. This standard is under the jurisdiction of the National Electrification Standardization Technical Committee (SAC/TC322). The drafting of this standard unit. Guangdong Power Grid Co., Ltd. Electric Power Research Institute, Xi'an Thermal Engineering Research Institute Co., Ltd., China State Oil Research and Development Center, State Grid Hunan Electric Power Company Electric Power Research Institute. The main drafters of this standard. Qian Yihua, Meng Yuchan, Su Wei, Zhao Yaohong, Ma Shujie, Chen Xi, Zhou Zhou, Zhang Li, Wang Peng, Ouyang Xu Dong, Tang Feng, Wan Tao, Chen Tiansheng, Li Xingwang. Corrosive sulfur (dibenzyl disulfide) in insulating oil Quantitative detection method

1 Scope

This standard specifies the quantitative determination of corrosive sulfur (dibenzyl disulfide) in insulating oil. This standard is applicable to the determination of the content of corrosive sulfur (dibenzyl disulfide) in insulating oil in unused and running, and the concentration range 5 mg/kg to 600 mg/kg.

2 normative reference documents

The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article Pieces. For undated references, the latest edition (including all modifications) applies to this document. GB/T 7597 Sampling method for power oil (transformer oil, turbine oil)

3 terms and definitions

The following terms and definitions apply to this document. 3.1 Dibenzyl disulfide dibenzyldisulfide; DBDS Aromatic bisulfonates containing two benzyl functional groups, molecular formula C14H14S2, molecular weight 246, melting point 71 ° C to 72 ° C. Note. DBDS will improve the oxidation stability of insulating liquids, but DBDS and transformers, reactors and other similar equipment in the metal copper and other gold Is a conductor reaction, the formation of copper and other metal sulfide. Most of the current research units believe that DBDS is the main corrosion in the transformer oil Sulfur, so the current quantitative detection of corrosive sulfur in oil is to determine the concentration of DBDS in oil. 3.2 Diphenyl disulfide diphenyldisulfide; DPDS An aromatic disulfide containing two phenyl functional groups, the molecular formula C12H10S2 having a molecular weight of 218 and a melting point of 61 ° C to 62 ° C. 3.3 Corrosive sulfur corrosives In the standard conditions, the insulating oil can react with the metal free sulfur and sulfide. 4 Gas Chromatography - Mass Spectrometry 4.1 Summary of methods In the centrifuge tube to take a certain amount of sample and the internal standard solution mother liquor, adding methanol oscillation extraction, centrifugal separation, take the supernatant into the gas The content of DBDS was analyzed by mass spectrometry. The results were expressed in terms of concentration (mg/kg). 4.2 Instruments 4.2.1 Gas Chromatograph 4.2.1.1 Injection device. It should have the function of sampling vaporization, shunting and collecting residual oil.

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 32508-2016_English be delivered?

Answer: Upon your order, we will start to translate GB/T 32508-2016_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 32508-2016_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 32508-2016_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 [email protected]. 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.