Analysis of Formaldehyde Emission from Wood-Based Flooring under the Ground-Heating Environment
In order to evaluate the formaldehyde emission of wood-based flooring under the ground-heating environment,three-layer parquet,multi-layer parquet,and laminate flooring samples were selected to equip experimental rooms with a ground-heating system.The formaldehyde mass concentrations of indoor air in the experimental room were tested by the phenol reagent spectrophotometry at different times under room temperature without or with the ground-heating system running.Results showed:1)the formaldehyde mass concentrations at 1 hour in the test room at room temperature without and with the ground-heating system running ranged from 0.025 to 0.033 mg/m3 and 0.023 to 0.043 mg/m3 respectively.They met the requirements of the Chinese Standard GB 50325-2020 Standard for indoor environmental pollution control of civil building engineering.While after 12 hours,the formaldehyde mass concentrations at room temperature without and with the ground-heating system running ranged from 0.025 to 0.039 mg/m3 and 0.018 to 0.060 mg/m3 in the air.The results met the requirement of the Chinese Standard GB/T 18883-2022 Standards for indoor air quality,respectively.2)after correcting the measurements of the formaldehyde mass concentration according to the Berge formula,compared data under the room temperature condition,the time to reach the peak formaldehyde mass concentration from the three wood-based flooring samples under the ground-heating system extended from 12 h to 24 h.The peak formaldehyde mass concentration increased by 9.9%,19.6%,and 22.8%,respectively.The stable peak formaldehyde mass concentration increased by 15.4%,66.7%,and 15.8%,respectively.The research provides a data basis for the verification of related ground-heating simulation cabins.It is an important theoretical basis for the scientific production and rational for applying wood-based flooring under a ground with heating environment.
wood-based flooringindoor environmentground heating systemformaldehyde mass concentration
国家科技期刊平台
NSTL
万方数据
维普
