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GB/T 38265.5-2021 English PDF

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US$199.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 38265.5-2021: Test methods for soft soldering fluxes - Part 5: Copper mirror test
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 38265.5-2021	199	Add to Cart	3 days	Test methods for soft soldering fluxes - Part 5: Copper mirror test	Valid

Similar standards

GB/T 40741 GB/T 37778 GB/T 37910.2 GB/T 38265.8 GB/T 38265.9 GB/T 38265.6

Basic data

Standard ID: GB/T 38265.5-2021 (GB/T38265.5-2021)
Description (Translated English): Test methods for soft soldering fluxes - Part 5: Copper mirror test
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J33
Word Count Estimation: 9,928
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 38265.5-2021: Test methods for soft soldering fluxes - Part 5: Copper mirror test

---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 5: Copper mirror test ICS 25:160:50 CCSJ33 National Standards of People's Republic of China Soldering flux test method Part 5: Bronze mirror test (ISO 9455-5:2020, 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 Reagent 1 6 Instruments 2 7 Test Step 2 8 Expression of test results 3 9 Test report 3 Reference 4

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 5 of GB/T 38265 "Test Methods for Soldering Flux": 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 modify and adopts ISO 9455-5:2020 "Test methods for solder fluxes - Part 5: Copper mirror test": The technical differences between this document and ISO 9455-5:2020 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: ● Replace ISO 9455-1 with GB/T 38265:1 which is modified to adopt international standard (see 7:1:3:3); ● Replace ISO 9455-2 with GB/T 38265:2 which is modified to adopt international standard (see 7:1:3:3); ● Added reference to GB/T 686 (see 5:1); ● Added reference to GB/T 8145 (see 5:4); ● Added reference to GB/T 11415 (see 6:3); ● Added reference to HG/T 2892 (see 5:2): The following editorial changes have been made to this document: --- Modify the standard name to "Solder Flux Test Method Part 5: Copper Mirror Test"; --- Added references: 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 Hanerxin Electronic Technology Co:, Ltd:, Harbin Welding Research Institute Co:, Ltd:, Shenzhen Weiteouxin Materials Co:, Ltd:, Harbin Institute of Technology, Yichengda Technology (Jiangxi) Co:, Ltd:, Suzhou Keshida Electronic Materials Co:, Ltd:, Xiamen City Timely Rain Solder Co:, Ltd:, Zhejiang Yatong Welding Material Co:, Ltd:, Yunnan Tin Industry Tin Material Co:, Ltd:, Zhengzhou Machinery Research Institute Co:, Ltd: The main drafters of this document: Ma Xin, Lv Xiaochun, Li Weijun, He Peng, Xu Jinhua, Li Chunfang, Zheng Xuzhang, Zhong Haifeng, Lu Hongbo, Zhang Guanxing, Song Bei, Lin Xiaohui, Jing Wen:

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 major science and technology projects "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 Solder", "Lead-free Solder", "Flux Classification and Performance Requirements" and "Solder Solder": 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 adopts the method of copper mirror test to qualitatively evaluate the corrosivity of solder flux to copper: Accurate and reliable, it has become an important detection method in flux products: Soldering flux test method Part 5: Bronze mirror test

1 Scope

This document specifies the qualitative evaluation method for copper corrosion of solder flux, including principles, reagents, equipment, test procedures, test results expression, 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 686 Chemical Reagent Acetone (GB/T 686-2008, ISO 6353-2:1983, NEQ) GB/T 8145 Gum Rosin GB/T 11415 Laboratory sintered (porous) filter pore size, classification and grades (GB/T 11415-1989, neqISO 4793: 1980) GB/T 38265:1 Test Methods for Soldering Flux Part 1: Determination of Non-volatile Matter Content Gravimetric Method (GB/T 38265:1- 2019, ISO 9455-1:1990, MOD) GB/T 38265:2 Test Methods for Soldering Flux Part 2: Determination of Non-volatile Matter Content Boiling Point Method (GB/T 38265:2- 2019, ISO 9455-2:1993, MOD) HG/T 2892 Chemical reagent isopropanol (HG/T 2892-2020, ISO 6353-3:1987, NEQ)

3 Terms and Definitions

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

4 Principles

For solid flux or paste flux, as well as flux samples in flux-cored solder wire, a solder containing 25% (mass fraction) should be prepared test solution of the sample: For liquid flux samples, it can be directly used as the test solution: Vacuum deposition on the glass plate according to the test solution The corrosion behavior of the formed copper film (copper mirror) was used to evaluate the flux: A rosin reference solution that should not cause copper film removal was used as a reference: test The purpose is to evaluate the reactivity of the solder flux:

5 Reagents

5:1 Acetone Analytical grade reagents that meet the requirements of GB/T 686: ......

Image

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 38265.5-2021_English be delivered?

Answer: Upon your order, we will start to translate GB/T 38265.5-2021_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 38265.5-2021_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 38265.5-2021_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.