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GB/T 38265.11-2021 English PDF

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US$209.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 38265.11-2021: Test methods for soft soldering fluxes - Part 11: Solubility of flux residues
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 38265.11-2021	209	Add to Cart	3 days	Test methods for soft soldering fluxes - Part 11: Solubility of flux residues	Valid

Similar standards

GB/T 40741 GB/T 37778 GB/T 37910.2 GB/T 38265.6 GB/T 38265.8 GB/T 38265.3

Basic data

Standard ID: GB/T 38265.11-2021 (GB/T38265.11-2021)
Description (Translated English): Test methods for soft soldering fluxes - Part 11: Solubility of flux residues
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J33
Word Count Estimation: 10,169
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 38265.11-2021: Test methods for soft soldering fluxes - Part 11: Solubility of flux residues

---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.
Test methods for soft soldering fluxes -- Part 11: Solubility of flux residues ICS 25:160:50 CCSJ33 National Standards of People's Republic of China Soldering flux test method Part 11: Solubility of flux residues (ISO 9455-11:2017, Softsolderingfluxes-Testmethods- Published on 2021-12-31 2022-07-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration directory Preface III Introduction IV 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Principle 1 5 Reagents and Materials 1 6 Instruments 2 7 Test Step 2 8 Expression of test results 3 9 Test report 3 Appendix A (informative) Changes in the structure of this document compared to ISO 9455-11:20174 Reference 5

foreword

This document is in accordance with the provisions of GB/T 1:1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules of Standardization Documents" drafted: This document is part 11 of GB/T 38265 "Solder Flux Test Methods": GB/T 38265 has released the following parts: --- Part 1: Gravimetric method for determination of non-volatile matter content; --- Part 2: Boiling point method for the determination of non-volatile matter content; --- Part 5: Bronze mirror test; --- Part 10: Test methods for the spreading of the wetting properties of solder fluxes; --- Part 11: Solubility of flux residues; --- Part 13: Determination of flux spatterability; --- Part 14: Evaluation of the adhesiveness of flux residues; --- Part 15: Copper corrosion test; --- Part 16: Wetting balance method for wetting properties of solder fluxes: This document uses the redrafted method to amend ISO 9455-11:2017 "Test methods for solder fluxes - Part 11: Flux residues" solubility": Compared with ISO 9455-11:2017, this document has more structural adjustments: Appendix A lists this document and ISO 9455-11: 2017 chapter number comparison list: The technical differences between this document and ISO 9455-11:2017 and their reasons are as follows: --- Regarding normative reference documents, this document has made adjustments with technical differences to adapt to the technical conditions of our country and the circumstances of the adjustment: The situation is reflected in Chapter 2 "Normative References", and the specific adjustments are as follows: ● Added reference to GB/T 678 (see 5:3); ● Added reference to GB/T 2040 (see 5:5:1); ● Removed ISO 9454-1: The following editorial changes have been made to this document: --- Modify the standard name to "Flux Test Method Part 11: Solubility of Flux Residues"; --- Added reference GB/T 15829: Please note that some content of this document may be patented: The issuing agency of this document assumes no responsibility for identifying patents: This document is proposed and managed by the National Welding Standardization Technical Committee (SAC/TC55): This document is drafted by: Shenzhen Weiteou New Materials Co:, Ltd:, Xiamen Shijiyu Solder Co:, Ltd:, Yichengda Soldering Co:, Ltd: Manufacturing (Kunshan) Co:, Ltd:, Harbin Institute of Technology, Nanjing University of Science and Technology, Harbin Welding Research Institute Co:, Ltd:, China Machinery Intelligent Equipment Innovation Research Institute Research Institute (Ningbo) Co:, Ltd:, Jiangsu University of Science and Technology, Yunnan Tin Industry Tin Materials Co:, Ltd:, Suzhou Keshida Electronic Materials Co:, Ltd:, Zhongshan Hanhua Tin Industry Co:, Ltd:, Dongguan Guofeng Testing Instrument Co:, Ltd: The main drafters of this document: Li Weijun, Zheng Xuzhang, Xu Jinhua, He Peng, Xue Peng, Sun Xiaomei, Long Weimin, Lu Sheng, Yang Zhidong, Zhang Xin, Li Chunfang, Lv Xiaochun, Su Jinhua, Li Ailiang, Shen Haizhen:

Introduction

As a key supporting material in the soldering process, solder flux has a decisive influence on the quality of soldered joints: In the implementation of the strong foundation project, the national science and technology major project "core electronic devices, high-end general-purpose chips and basic software products" and "super large-scale Technology research and development of core electronic devices, high-end chips and integrated circuit complete sets of technology in the "Special Project for Molded Integrated Circuit Manufacturing Equipment and Complete Sets of Technology" Among them, solder flux is the key basic material, and it is of great significance to formulate the test method standard for its quality performance evaluation: Since:2001, my country has successively promulgated and implemented "Tin-Lead Soldering Materials", "Lead-Free Soldering Materials", "Solder Flux Classification and Performance Requirements" and "Solder Soldering Materials": As an important component of the solder, solder flux is not only important for the solderability and processability of the solder It is also critical to the environment, reliability of solder joints and applications: GB/T 38265 "Solder Flux Test Method" is a General test method standard, it is proposed to consist of the following parts: --- Part 1: Gravimetric method for determination of non-volatile matter content; --- Part 2: Boiling point method for the determination of non-volatile matter content; --- Part 3: Determination of acid value by potentiometric titration and visual titration; --- Part 5: Bronze mirror test; --- Part 6: Determination of halide (excluding fluoride) content; --- Part 8: Determination of zinc content; --- Part 9: Determination of ammonia content; --- Part 10: Test methods for the spreading of the wetting properties of solder fluxes; --- Part 11: Solubility of flux residues; --- Part 13: Determination of flux spatterability; --- Part 14: Evaluation of the adhesiveness of flux residues; --- Part 15: Copper corrosion test; --- Part 16: Wetting balance method for wetting properties of solder flux; --- Part 17: Surface insulation resistance comb brush test and electrochemical migration test of flux residues: This document is a qualitative evaluation method for the solubility of solder flux residues in selected solvents: It has the advantages of accuracy and reliability, and has become an important detection method in solder flux products: Soldering flux test method Part 11: Solubility of flux residues

1 Scope

This document specifies a method for qualitative evaluation of the solubility of solder flux residues in selected solvents, including principles, reagents and materials, instrument design Preparation, test procedures, expression of test results, test report, etc: This document applies to type 1 solder fluxes as defined in GB/T 15829:

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document: GB/T 678 Chemical reagent ethanol (anhydrous ethanol) (GB/T 678-2002, ISO 6353-2:1983, NEQ) GB/T 2040 Copper and Copper Alloy Sheets

3 Terms and Definitions

There are no terms and definitions that need to be defined in this document:

4 Principles

The pre-fluxed brass test plate is heated to the brazing temperature, and then immersed in the selected solvent after holding for a certain period of time to dissolve the flux residue: The degree of solubility of flux residues is indicated by measuring the current flow between the pit cleaning area and the electrical probe tip:

5 Reagents and Materials

5:1 Pickling solution Carefully add 75 mL of sulfuric acid (1:84 g/mL) to 210 mL of distilled or deionized water, stirring while adding: After cooling, Then add 15mL of nitric acid (1:42g/mL) and mix well: 5:2 Solvents Solvent for dissolving flux residues, recommended by the flux manufacturer or supplier: 5:3 Ethanol Analytical grade reagents that meet the requirements of GB/T 678: 5:4 Oil-based crayons Used to prevent the diffusion of the solder flux during the test: ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 38265.11-2021_English be delivered?

Answer: Upon your order, we will start to translate GB/T 38265.11-2021_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 38265.11-2021_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 38265.11-2021_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.