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GB/T 28860-2012 English PDF

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US$149.00 · In stock
Delivery: <= 2 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 28860-2012: Test method for the determination of get time of encapsulating material of powdered epoxy
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 28860-2012	149	Add to Cart	2 days	Test method for the determination of get time of encapsulating material of powdered epoxy	Valid

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Basic data

Standard ID: GB/T 28860-2012 (GB/T28860-2012)
Description (Translated English): Test method for the determination of get time of encapsulating material of powdered epoxy
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: L04
Classification of International Standard: 31.020
Word Count Estimation: 5,599
Regulation (derived from): National Standards Bulletin 2012 No. 28
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 the electronic components with epoxy resin powder coating material Determination of gel time. This standard applies to epoxy resin powder coating material Determination of gel time, does not apply to short gel time (less than 15s)

GB/T 28860-2012: Test method for the determination of get time of encapsulating material of powdered epoxy

---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 method for the determination of get time of encapsulating material of powdered epoxy ICS 31.020 L04 National Standards of People's Republic of China Epoxy powder encapsulation materials Determination of gel time ofpowderedepoxy Issued on. 2012-11-05 2013-02-15 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. The standard equipment by the National Standardization Technical Committee and the semiconductor material (SAC/TC203) and focal points. This standard was drafted. Xianyang Reid Electronic Technology Co., Ltd., Xianyang Wei-hua Insulation Materials Co., Ltd., China Electronics Standardization graduate School. The main drafters of this standard. High Yan Ru, Liu Nianjie, Liu Yun, Peihui Chuan, Realing, Xu Wen Hui. Epoxy powder encapsulation materials Determination of gel time

1 Scope

This standard specifies the electronic components with epoxy powder coating material gelling time measuring method. This standard applies to epoxy powder encapsulation materials gel time determination does not apply to short gel time (less than 15s) epoxy powder coating Gelling material measurement time.

2 principle of the method

A certain amount of epoxy powder coating material sample is placed is heated to a predetermined temperature gel time tester curing pan, measured by the sample Melted to become no longer drawing time elapsed.

3 devices and materials

3.1 Thermometer, range 0 ℃ ~ 300 ℃, accurate to 1 ℃. 3.2 range suitable timer, minimum scale 1s. 3.3 paddles, Φ5mm glass rod. 3.4 heating plate, the diameter of 140mm or 140mm × 140mm, thickness 15mm ~ 20mm, can control temperature at 150 ℃ ± 1 ℃. Heating plate has a circular polishing pits (cured disc) for placement test sample preparation curing disc diameter Φ (16 ± 0.1) mm, depth 4mm. Heating plate is placed on one side of the thermometer bore below the upper surface of the cured plate and extending horizontally near the center of the disc curing hole Cured from the top center of the disc is not more than 2mm. 3.5 verification was used to verify the heating plate temperature, the material (melting point salt standard substance) known melting point. 3.6 measuring spoons capacity of 1mL, for a sample into a curing tray. 3.7 release agent such as polytetrafluoroethylene dispersion aerosol or equivalent substances. 3.8 scraper for the eradication of the sample plate heat cured on the disc, made of a material hardness is less than the heating plate.

4 Sample

Two samples, each 1mL.

5 measuring step

5.1 Cleaning cure plate and heating plate. 5.2 The heating plate was placed in a laboratory is not ventilated location, turn on the power switch, the heating plate was adjusted to 150 ℃ ± 1 ℃ or product standard gauge Given temperature, stable for at least 10min. Use a small piece of known melting point of verification was placed on a hot plate, to verify whether the surface temperature of the heating block Desired temperature. 5.3 1mL sample into the dish cured quickly with a glass rod to pave, when the whole sample melted immediately start the timer. At the same time, with Glass rod in a circular motion agitating the molten sample. When the test sample starts to thicken, stirring while maintaining every 2s ~ 3s, will Lift the glass rod (height approximately 10mm) from the molten sample. If drawing a glass rod that brought the formation of brittle fracture can no longer be brushed ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 28860-2012_English be delivered?

Answer: Upon your order, we will start to translate GB/T 28860-2012_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 2 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 28860-2012_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 28860-2012_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.