人造板甲醛散发量测试方法分析  

Different Test Methods on Formaldehyde Emission From Wood-Based Board

作　　者：杜正健 莫金汉[1] 张寅平[1] 

机构地区：[1]清华大学建筑学院,建筑技术科学系,北京100084

出　　处：《工程热物理学报》2014年第1期175-178,共4页Journal of Engineering Thermophysics

基　　金：国家自然科学基金(No.51136002;No.51006057);十二五科技支撑计划(No.2012BAJ02B01)

摘　　要：人造板是室内甲醛的主要来源;测试其甲醛散发量有助于评估人造板对人体的健康影响。本文对比分析了常用的人造板甲醛散发量测试方法,包括穿孔法、广口容器法、干燥器法、气体分析法、气候箱法、FLEC法和C-history法等.穿孔法仅能获得人造板的甲醛总含量,而非总散发量;气候箱法测试结果能直接反映人造板的真实散发情况,但测试周期长,代价大;C-history方法采用密闭舱测试人造板散发关键参数,可预测人造板真实散发特性,缩短测试时间。此外,不同方法的预处理条件和测试条件明显不同,因此不同方法测试结果的相关性及其测试误差值得研究.Determining formaldehyde emission from wood-based board is important for wood-based board is the main source of indoor formaldehyde, which affects people＇s health. This article presents a comprehensive comparison of commonly used test methods, including perforator method, flask method, desiccator methods, gas analysis method, chamber method, FLEC method and C-history method. The formaldehyde content measured by the perforator method is the total formaldehyde content, but not emittable formaldehyde. The chamber method can directly reflect the real emission characteristic of wood-based materials; however it is time and money-consuming. Using C-history method, the characteristic parameters of wood-based materials can be obtained simultaneously in short time, which can be used to predict the real emission. Besides, pre- and test conditions of these methods are different, this results in the need for comparing the agreement of these methods.

关 键 词：甲醛散发 建材 标准方法 C—history 室内空气质量 

分 类 号：TU50[建筑科学—建筑技术科学]