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Decoration materials VOC emission rate test chamber method
Date: Apr 18,2024 Views: 96
Decoration materials VOC emission test chamber method
The construction and decoration materials VOC emission test chamber method is used to test the VOC release of building materials, decoration materials and other products, the test chamber used can simulate the indoor environment, and can collect the volatile organic compounds released by these products.
The test principle used in this method is: put the sample into the voc emission test chamber, the sample will release VOC, let the VOC mix with the air in the chamber, and then collect these mixed gases to be analysed to get the concentration of VOC.
The steps of VOC emission test chamber method are as follows:
1. Test chamber preparation: Clean the model HYV-1000 voc emission test chamber with deionised water, open the chamber door and air dry.
2. Sample placement of voc emission test chamber : Complete the sample placement within 30 s, the sample needs to be placed in the middle of the VOC test chamber, so that the air flow can pass through the sample surface evenly.
3. Sampling time: According to the purpose of the test, air sampling can be carried out in the 1st d(24 h),3 d(72 h),7 d(168 h), 14 d±1 d, 28 d±2d and 56 d±2d, and the number of sampling times can also be increased appropriately or the release time can be extended.
4. Gas collection: Total volatile organic compounds (TVOC) release of the collection, according to GB/T 18883-2002 in Appendix C of the regulations. Formaldehyde emission collection, according to the provisions of GB/T 18204.2-2014 in 7.2.
5. Determination and calculation: The collected gas, analysed by the relevant instruments, and in accordance with the calculation formula in the standard, calculate the VOC release rate.
The above VOC emission test chamber method we all understand, if there is no clear, you can visit the "Huanyi instrument" official website, to technical personnel to get the specific operating procedures.
