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Preparation of supplementary knowledge when using a cubic meter of VOC emission test box Blank making
Date: Jan 11,2020 Views: 669
a) Normally, the temperature is 23 ℃ ± 2.0 ℃ in the standard environment, and the sample is evenly replaced on the surface of the stainless steel plate or glass plate. Sample replacement amount is 300g / m2 ± 15g / m2 (ring meter)b) The replacement area of the sample is determined by the relationship with the bearing capacity of the sample in 71e).
c) Try to make fragments in a clean environment without chemical pollutants that can be adsorbed, especially the chemicals released from other fragments
Curing of the blank (surface)
Generally, the blank used for sample test preparation should be cured at 23 ° C ± 20 ° C within a period of 60min ~ 24h. Melt during the curing period to make the adhesive surface solidify and maintain the adhesive surface shape is good and can stabilize the VOC in the environment of the curing stage to keep the environment clean and avoid the incorporation of adsorbed chemical pollutants. Pay special attention to volatilization from other small amounts Out of chemicals.
