GB/T 2793-1995 PDF English
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 2793-1995 | English | 90 |
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The method for determination of nonvolatile content of adhesives
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| GB 2793-1981 | English | 199 |
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The method for determination of nonvolatile content of adhesives
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Excerpted PDFs (Download full copy in 9 seconds upon purchase)PDF Preview: GB/T 2793-1995
GB/T 2793-1995: The method for determination of nonvolatile content of adhesives---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT2793-1995
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
Replacing GB 2793-81
Test method for nonvolatile content of adhesives
Issued on. DECEMBER 20, 1995
Implemented on. AUGUST 01, 1996
Issued by. State Technical Supervision Bureau
Table of Contents
1 Subject content and scope of application... 3
2 Principle... 3
3 Equipment... 3
4 Test temperature, test duration and sampling volume... 3
5 Test procedure... 4
6 Results presentation... 4
7 Test report... 4
Additional information... 5
Test method for nonvolatile content of adhesives
1 Subject content and scope of application
This Standard specifies the equipment, test temperature, test procedure and
test results for determination of nonvolatile content of adhesives.
This Standard applies to adhesives that have obvious mass loss when heated
to volatilize.
2 Principle
The nonvolatile content of adhesives is determined by heating the sample at a
certain temperature for a certain period of time, and it is expressed as a
percentage of the mass of the sample after heating and the mass of the sample
before heating.
3 Equipment
3.1 Constant temperature blast oven. the temperature fluctuation is not more
than ±2 °C.
3.2 Thermometer. 0 ~ 150 °C, the division value is 1 °C.
3.3 Weighing container. a weighing bottle or aluminum foil dish with a diameter
of 50 mm and a side height of 30 mm.
4 Test temperature, test duration and sampling volume
4.1 Amino-based resin adhesives. the test temperature is 105 ± 2 °C, the test
duration is 180 ± 5 min, and the sampling volume is 1.5 g.
5 Test procedure
WEIGH the adhesive sample as required, accurate to 0.001 g; PLACE it in a
container that has been made to constant weight and weighed at the test
temperature;
6 Results presentation
The nonvolatile content is calculated as follows.
7 Test report
a. Sample source, sample name, manufacturing date, test date;
b. Test temperature, test duration;
c. Nonvolatile content, %.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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