GB/T 37757-2019Determination of emission rate of volatile organic compounds from materials and components used in electrical and electronic products—Emission test chamber-gas chromatography mass spectrometry (English PDF)
电子电气产品用材料和零部件中挥发性有机物释放速率的测定 释放测试舱-气相色谱质谱法
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
June 4, 2019
Implementation date
January 1, 2020
Scope
GB/T 37757-2019 is the English-translated version of 电子电气产品用材料和零部件中挥发性有机物释放速率的测定 释放测试舱-气相色谱质谱法.
GB/T 37757-2019 is the Chinese national method for measuring the emission rate of volatile organic compounds from the materials and components used in electrical and electronic products.
It gives the principle, the emission test chamber and the other apparatus, the preparation and loading of the specimen, the sampling of the chamber air, the gas chromatography-mass spectrometry determination, the calculation of the emission rate and the test report.
It applies to the materials and components of electrical and electronic products, whose emissions decide the air quality around a working appliance. Manufacturers, their suppliers and testing laboratories use it. Issued on 4 June 2019, it has applied since 1 January 2020.
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Document preview — GB/T 37757-2019
National Standard of the People's Republic of China
- ICS
- 31.020
- Classification
- L 10
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword
- 1 Scope
- 2 Terms and definitions
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
1 Scope
This standard specifies the release test chamber for the release rate of volatile organic compounds in materials and parts for electrical and electronic products - gas phase color Spectral mass spectrometry (GC-MS) test method.
This standard applies to the determination of the release rate of volatile organic compounds in materials and parts for electrical and electronic products.
This standard does not apply to the determination of the rate of release of volatile organic compounds in electrical and electronic products.
2 Terms and definitions
The following terms and definitions apply to this document.
2.1 Component
Non-machine products consisting of different components and molding materials.
2.2 Volatile organic compounds volatileorganiccompounds; VOC
Sampling with 2,6 diphenylfuran porous polymer resin (Tenax-TA), using a gas chromatographic column with a polarity index of less than 10 An organic compound having a retention time between n-hexane and n-hexadecane.
2.3 Total volatile organic compound total volatileorganiccompound; TVOC
Using Tenax-TA sampling, analysis was performed using a gas chromatographic column with a polarity index of less than 10, retention times in n-hexane and positive sixteen The sum of all organic compounds between the alkane. [GB/T 18883-2002, definition 3.2]
2.4 Release test cabin emissiontestchamber
It consists of a cabin, an air circulation device, an air exchange device, an air purification device, a temperature and relative humidity control device, and a monitoring device.
Test equipment with controlled operating parameters for simulating the release environment of volatile organic compounds.
2.5 Air exchange rate
The ratio of the volume of fresh air released in the test chamber to the volume of the no-load release test chamber per unit time.
Note: The unit is hourly (h-1).
2.6 Release rate
The mass of a certain VOC released in the sample to be measured per unit time or the quality of the TVOC.
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 18 pages — is available in the English PDF.
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