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GB/T 38265.2-2019 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 38265.2-2019: Test methods for soft soldering fluxes -- Part 2: Determination of non-volatile matter -- Ebulliometer method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 38265.2-2019	199	Add to Cart	3 days	Test methods for soft soldering fluxes -- Part 2: Determination of non-volatile matter -- Ebulliometer method	Valid

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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 38265.2-2019 (GB/T38265.2-2019)
Description (Translated English): Test methods for soft soldering fluxes -- Part 2: Determination of non-volatile matter -- Ebulliometer method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J33
Classification of International Standard: 25.160.50
Word Count Estimation: 10,151
Date of Issue: 2019-12-10
Date of Implementation: 2020-07-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 38265.2-2019: Test methods for soft soldering fluxes -- Part 2: Determination of non-volatile matter -- Ebulliometer method

---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 2. Determination of non-volatile matter--Ebulliometric method ICS 25.160.50 J33 National Standards of People's Republic of China Solder flux test methods. Part 2. Non-volatile substances Determination of content (ISO 9455-2..1993, Softsolderingfluxes-Testmethods- 2019-12-10 release 2020-07-01 implementation State Administration of Market Supervision and Administration Issued by the National Standardization Management Committee

Foreword I 1 Scope 1 2 Normative references 1 3 Principle 1 4 Equipment 1 5 Test Step 3 6 Test data processing 3 7 Precision 4 8 Test report 4 Appendix A (informative appendix) Preparation of standard samples of rosin-based liquid solder containing 25% (mass fraction) of non-volatile substances Method 5

Foreword

GB/T 38265 "Test Method for Solder Flux" is divided into the following parts. --- Part 1. Determination of non-volatile matter content gravimetric method; --- Part 2. Determination of non-volatile matter content by boiling point method; --- Part 3. Determination of acid value Potentiometric titration and visual titration; --- Part 5. Copper 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 method for spreading of soldering flux wetting properties; --- Part 11. Solubility of flux residue; --- Part 13. Determination of flux splashability; --- Part 14. Evaluation of tackiness of flux residues; --- Part 15. Copper corrosion test; --- Part 16. Wetting balance method of soldering flux wetting performance; --- Part 17. Surface insulation resistance comb test and electrochemical migration test of flux residues. This part is Part 2 of GB/T 38265. This section was drafted in accordance with the rules given in GB/T 1.1-2009. This section uses the redrafting method to modify the use of ISO 9455-2..1993 "Test Methods for Solder Part 2. Non-volatile Substances Determination of boiling point method. The technical differences between this part and ISO 9455-2..1993 and the reasons are as follows. --- With regard to normative quotation documents, this part has been adjusted with technical differences to adapt to China's technical conditions and adjustments The situation is reflected in Chapter 2 "Regulatory Reference Documents", with specific adjustments as follows. ● Replaced ISO 9454-1..1990 with GB/T 15829 modified to adopt international standards; ● Deleted the cited international standards ISO 4791-1. 1985 and IEC 60068-2-20. 1979; ● Added reference to GB/T 6379 (all parts). This section also made the following editorial changes. --- Amend the standard name to "Part 2 of Test Methods for Solder Flux. Determination of Non-Volatile Matter Boiling Point Method"; --- Chapter 6 formula (1), the content of non-volatile matter in the solder sample is expressed as w (mass fraction). This part is proposed and managed by the National Welding Standardization Technical Committee (SAC/TC55). This section was drafted by. Harbin Welding Research Institute Co., Ltd., Yirongda Solder Manufacturing (Kunshan) Co., Ltd., and Guangzhou Special Pressure Equipment Preparation Research Institute, Jiangsu University of Science and Technology, Shenzhen Tongfang Electronic New Material Co., Ltd., Shenzhen Weite New Material Co., Ltd., Beijing Jingkang Xiwei Technology Co., Ltd., Harbin Institute of Technology, Zhengzhou Machinery Research Institute Co., Ltd., China Machinery Intelligent Equipment Innovation Research Institute (Ning Wave) limited company. The main drafters of this section. Wang Fengjiang, Lu Xiaochun, Li Maodong, Yang Haifeng, Xiao Hanfei, Wu Jing, Su Jinhua, Wang Zhigang, Sun Xiaomei, He Peng, Pei Yaozhen and Long Weimin. Solder flux test methods. Part 2. Non-volatile substances Determination of content

1 Scope

This part of GB/T 38265 stipulates the boiling point method for the determination of the non-volatile matter content in the solder flux, including the method principle, equipment, test Inspection steps, test data processing, precision, test reports, etc. This section applies to liquid solders containing highly volatile solvents in the types 1.1.1, 1.1.2 and 1.1.3 defined in GB/T 15829, And the flux with the content of non-volatile matter is not less than 10%. Note. For the liquid flux with lower volatility of the solvent than isopropyl alcohol, the determination of the non-volatile matter content of the flux should adopt the gravimetric method.

2 Normative references

The following documents are essential for the application of this document. For dated references, only the dated version applies to this article Pieces. For the cited documents without date, the latest version (including all amendments) applies to this document. GB/T 6379 (all parts) Accuracy of measurement methods and results (correctness and precision) [ISO 5725 (all parts)] GB/T 15829 Classification and performance requirements of solder flux (GB/T 15829-2008, ISO 9454-1..1990, ISO 9454-2. 1998, MOD)

3 Principle

Weigh a certain amount of solder sample and evaporate in the boiling point meter until the volatile substances are completely removed, the degree of removal depends on the distillation temperature With the distillation time, the flux residue is the non-volatile substance in the flux sample.

4 Instruments

4.1 Martin Boiling Point Meter The Martin boiling point meter with a spherical distillation flask is shown in Figure 1. Note. When a spherical bottle is used instead of the pear-shaped bottle matching Martin Boiler, the heat exchange between the heat source and the distillation bottle will be better. ......

Image

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 38265.2-2019_English be delivered?

Answer: Upon your order, we will start to translate GB/T 38265.2-2019_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 38265.2-2019_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 38265.2-2019_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.