GB/T 38214-2019Test method of inert gas concentration for insulating glass unit (English PDF)
中空玻璃惰性气体含量测试方法
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
October 18, 2019
Implementation date
September 1, 2020
Scope
GB/T 38214-2019 is the English-translated version of 中空玻璃惰性气体含量测试方法.
GB/T 38214-2019 is the Chinese standard "Test method of inert gas concentration for insulating glass unit". Its scope clause reads: This standard specifies the equipment, calibration, environmental conditions, samples, gas extraction points, and tests of the test method for the inert gas content of insulating glass.
Process, inert gas content calculation formula and test report. This standard applies to the test of the inert gas content in the hollow glass chamber. Its clauses include terms and definitions; gas chromatography analysis.
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Document preview — GB/T 38214-2019
National Standard of the People's Republic of China
- ICS
- 81.040
- Classification
- Q 33
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 gas chromatography analysis
1 Scope
This standard specifies the equipment, calibration, environmental conditions, samples, gas extraction points, and tests of the test method for the inert gas content of insulating glass.
Process, inert gas content calculation formula and test report.
This standard applies to the test of the inert gas content in the hollow glass chamber.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
JJG700 gas chromatograph verification procedure
3 Terms and definitions
The following terms and definitions apply to this document.
3.1 Oxygen analysis
By accurately testing the oxygen content in the mixed gas in the hollow glass chamber, according to the principle that the volume ratio of oxygen in the air is constant,
In order to obtain the content of air in the mixed gas, a method of calculating the content of the inert gas is finally derived.
4 gas chromatography analysis
4.1 Principle
Gas chromatography analysis utilizes the components in the sample gas, and the distribution and adsorption coefficient between the gas phase and the stationary phase in the column are not
Similarly, when the carrier gas brings the sample gas into the column, the running speed of each component is different. After a certain column length, the color is colored in a different order.
Separated in the column, entered the tester for testing, qualitative and quantitative analysis according to the retention time and response value of each component, and finally measured
The content of each component of the sample gas.
4.2 Equipment
4.2.1
Gas chromatograph, qualified according to JJG700 and satisfying the following conditions.
a) being capable of separating an inert gas from the mixed gas;
b) having a thermal conductivity detector (TCD);
c) Test accuracy is at least 0.1%.
4.2.2 A sampler with a volume of 50 mL, as shown in Figure 1.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
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