The estimate of the steady state formaldehyde concentration in large chamber tests
The estimate of the steady state formaldehyde concentration in large chamber tests
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发表时间：
1994
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通讯作者：
A. Colombo;O. Jann;R. Marutzky
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作者：
A. Colombo;O. Jann;R. Marutzky
木质材料的分类通常需要在大型环境室内进行甲醛释放试验。法规规定了甲醛的排放类别，即在指定的室内条件下，在给定时间后测量的甲醛稳态浓度。最近的相互比较实验表明，对稳态的定义并不令人满意。在实践中，室内甲醛浓度不断下降，需要根据可接受的下降速度上限对稳定状态进行实际定义。本文提出了一种方法，它给出了一个令人满意的稳态定义
Formaldehyde emission tests in large environmental chambers are usually required for the classification of woodbased materials. Regulations define emission classes in terms of formaldehyde steady state concentration measured under specified chamber conditions after a given time. Recent intercomparison experiments have revealed an unsatisfactory definition of the steady state. In practice, chamber concentrations of formaldehyde continuously decrease and a pragmatic definition of the steady state in terms of an acceptable upper limit of the rate of decrease is required. This paper proposes a method which presents a satisfying definition of the steady state