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GB/T 32688-2016: Plastics -- Phenolic resin powder -- Determination of flow distance on a heated glass plate
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 32688-2016 | English | 119 |
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Plastics -- Phenolic resin powder -- Determination of flow distance on a heated glass plate
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GB/T 32688-2016
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Basic data | Standard ID | GB/T 32688-2016 (GB/T32688-2016) | | Description (Translated English) | Plastics -- Phenolic resin powder -- Determination of flow distance on a heated glass plate | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G31 | | Classification of International Standard | 83.080.10 | | Word Count Estimation | 6,645 | | Date of Issue | 2016-06-14 | | Date of Implementation | 2017-01-01 | | Adopted Standard | ISO 8619-2003, MOD | | Regulation (derived from) | National Standard Announcement No. 8 of 2016 | | 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 measurement of the flow distance of thermosetting phenolic resins for production and control purposes. This standard specifies test conditions for specimen preparation, test temperature and glass plate inclination involved in the measurement of flow distance. The flow distance is related to the activity and melt viscosity of the resin. The resin flow rate is high and the curing speed is high and the melt viscosity is high. | GB/T 32688-2016: Plastics -- Phenolic resin powder -- Determination of flow distance on a heated glass plate
---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.
Plastics - Phenolic resin powder - Determination of flow distance on a heated glass plate
ICS 83.080.10
G31
National Standards of People's Republic of China
Plastic phenolic resin
Determination of flow distance on heated glass plates
(ISO 8619..2003, MOD)
2016-06-14 release
2017-01-01 Implementation
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
China National Standardization Management Committee released
Foreword
This standard is drafted in accordance with the rules given in GB/T 1.1-2009.
This standard uses the re-drafting method to modify the use of ISO 8619..2003 "plastic phenolic resin in the heated glass plate on the flow distance
Determination "(English version).
There are technical differences between this standard and ISO 8619..2003, and the terms involved in these differences have passed through the margin
The vertical single line (︱) of the position is marked.
The technical differences between this standard and ISO 8619..2003 are as follows.
The contents of "Open oven operation" are removed from 3.4, 4.3 and 7, and the opening of the oven is not allowed to tilt the glass
angle. The reason is that open oven operation caused by temperature fluctuations, the impact on the larger test results;
--- increased 3.6, ISO 8619..2003 does not specify the flow distance measurement tool, using different measurement tools will make the results produced
Health is greater error.
For ease of use, this standard has also made the following editorial changes.
--- Deleted the preface of ISO 9771..1995;
- an introduction to the national standard;
In section 4.2, change the "A part" of the ingot mold to "cavity A", "part B" to "under pressure block B" and "part D" to "positioning block D"
--- Change the precision of ISO 8619..2003 (Chapter 6) to Note.
This standard is proposed by the China Petroleum and Chemical Industry Association.
This standard by the National Plastics Standardization Technical Committee Thermosetting Plastics Subcommittee (SAC/TC15/SC11) centralized.
This standard is responsible for drafting units. Changshu Southeast Plastic Co., Ltd.
This standard participates in the drafting unit. Zhongguang dawn Chemical Research and Design Institute Co., Ltd., Shaxian Hongsheng Plastic Co., Ltd., Shanghai Eurasia
Materials Co., Ltd., Shandong Shengquan Chemical Co., Ltd., National Synthetic Resin Quality Supervision and Inspection Center.
The main drafters of this standard. Yang Leen, Tang Yiwen, Wang Yonggui, Luo Jianfeng, Zhu Yongmao, Chen Ling, Zhao Ping.
Plastic phenolic resin
Determination of flow distance on heated glass plates
1 Scope
1.1 This standard specifies the method for measuring the flow distance of thermosetting phenolic resins for production and control purposes. This standard specifies the flow distance measurement
The amount of the sample involved in the preparation, test temperature and glass plate inclination and other test conditions.
1.2 flow distance and resin activity and melt viscosity. Fast curing speed and high melt viscosity of the resin flow distance is short.
2 principle
The sample ingot was pressed under the specified conditions and placed on a glass plate which had been heated to a (125 ± 1) ° C in a naturally ventilated oven. Put it like
The ingot's glass plate was held in the oven at a horizontal position for 3 min and then held at a tilted position for 20 min to measure the flow distance.
3 equipment
3.1 Natural ventilation oven. can maintain (125 ± 1) ℃, with the level of calibration level. The temperature should be measured immediately adjacent to the sample ingot.
3.2 Die ingot mold. used to suppress the diameter of (12.5 ± 0.3) mm, the thickness of (4.8 ± 0.2) mm cylindrical ingot.
3.3 balance. accuracy of 1mg.
3.4 Tilt device. made of metal to allow the glass plate to be in a horizontal position or to operate outside the oven to tilt the glass plate to a position of (60 ± 1) °
(see picture 1).
Description.
1 --- resin ingot;
2 --- glass plate;
3 --- metal bracket;
l --- flow distance.
Figure 1 Tilt device
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