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多舱法VOC预处理环境舱试件在23±1℃，相对湿度（50 ±5）%条件下放置（15±2）d，试件之间距离至少25mm，使客气在所有试件表面上自由循环，恒温恒湿室内空气置换率至少每小时1次，室内空气中甲醛质量浓度不能超过0.10mg/m3
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