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GB/T 30777-2014: Determination of flash point of adhesives -- Close cup
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 30777-2014 | English | 169 |
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Determination of flash point of adhesives -- Close cup
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GB/T 30777-2014
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Basic data | Standard ID | GB/T 30777-2014 (GB/T30777-2014) | | Description (Translated English) | Determination of flash point of adhesives -- Close cup | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G38 | | Classification of International Standard | 83.180 | | Word Count Estimation | 7,744 | | Date of Issue | 7/8/2014 | | Date of Implementation | 12/1/2014 | | Quoted Standard | GB/T 2943; GB/T 20740-2006 | | Regulation (derived from) | 2014 National Standards Bulletin No. 18 | | 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 method for determination of VOC-containing adhesive flash point. This standard applies to the determination of solvent-containing and solvent-free adhesives, but not containing less than 10% VOC water-based adhesives. | GB/T 30777-2014: Determination of flash point of adhesives -- Close cup---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.
Detemination of flash point of adhesives. Close cup
ICS 83.180
G38
National Standards of People's Republic of China
Determination of closed cup flash point Adhesives
Issued on. 2014-07-08
2014-12-01 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 proposed by China Petroleum and Chemical Industry Association.
This standard by the National Standardization Technical Committee adhesive (SAC/TC185) centralized.
This standard was drafted. Jiangsu black pine adhesives Co., Ltd., Shanghai Sunshine Scientific Instrument Manufacturing Co., Ltd., Shanghai Rubber Products
graduate School.
The main drafters of this standard. Liupeng Kai, Yin Ping, Huang Xiongqiang, Xiaowei Jiang, Xu Ning.
Determination of closed cup flash point Adhesives
1 Scope
This standard specifies the method for determination of VOC-containing adhesive flash point.
This standard applies to the determination of solvent-containing and solvent-free adhesives, but not containing less than 10% VOC water-based glue
Agent.
NOTE. When the adhesive component containing halogenated hydrocarbons, may interfere with the test results and observations.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 2943 Adhesive term
GB/T 20740-2006 adhesive sampling
3 Terms and Definitions
GB/T 2943 defined by the following terms and definitions apply to this document.
3.1
Flashpoint flashpoint
Under specified test conditions, using the sample vapor ignition source causing flash fire, corrected to 101.3kPa (760mmHg) most atmospheric correction
Low temperature.
Principle 4
The test sample was placed in a predetermined closed cup, immersed in heated pool. Pool heating temperature was slowly increased at a constant speed, the pool heating
The temperature difference between the liquid and the test sample does not exceed 2 ℃, and to ensure that heating rate during the test sample is not more than 0.5 ℃/1.5min. in
The heating process, a time of 1.5min intervals of not less than test firing. The lowest temperature recorded under flash appears calculated test product
Flash point temperatures and atmospheric pressure by 101.3kPa corrected.
To ensure that test at almost equilibrium conditions, it is recommended to use a slow heating rate. Because some of the low thermal conductivity or high viscosity products
Resistance to heat transfer. By using a stirring device to keep the temperature uniformity of the test sample (the ignition test without stirring operation).
The minimum ignition time interval should not be too small to ensure that the saturated vapor concentration in each test after test firing above the sample gas chamber.
When the measured adhesive at lower temperatures to form a "frozen state" impede stirring operation, the test sample at a constant temperature to the temperature setting
Follow-up test after at least 10min.
5 Instruments
5.1 cups and lids closed
Closed cup. With inner lid and the liquid level indicator (see Figure 1).
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