Path: Home > GB/T > Page256 > GB/T 28860-2012 Home > Standard_List > GB/T > Page256 > GB/T 28860-2012
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 28860-2012 | English | 149 |
Add to Cart
|
2 days [Need to translate]
|
Test method for the determination of get time of encapsulating material of powdered epoxy
| Valid |
GB/T 28860-2012
|
PDF similar to GB/T 28860-2012
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 | 5,538 | | 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
Price & DeliveryUS$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
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+ countriesQuestion 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. |