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Home >> 新闻资讯 >>常见问题 >> 你能明确辨别VOC、VOCS和TVOC吗?
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你能明确辨别VOC、VOCS和TVOC吗?

Time:2020-11-06     Author:北中科技   Read

许多朋友不知道VOC,VOCS和TVOC是什么,所以让我们一起看一下。

1. VOC

VOC物质是一种容易挥发的有机物质。 VOC是挥发性有机化合物的英文缩写。 VOC在通常的意义上是导电的有机物质;但是,在环境保护的意义上,定义是活性的挥发性有机物质,即会造成危害的挥发性有机物质。

实际上,VOC分为两类。

一种是通常意义上的VOC的定义,仅解释什么是挥发性有机物或在什么条件下是挥发性有机物。

另一个是在环境保护的意义上的定义,即活性挥发性有机物质,即引起危害的挥发性有机物质。显然,就环境保护而言,有两点很重要:挥发和参与大气光化学反应。除非它参与大气的光化学反应,否则它不会造成伤害。

2. VOCS

在中国VOCS(挥发性有机化合物),从室温的蒸汽压力,过去沸点为260°C或更低的有机化合物或20°C条件下的蒸汽压力= 10消除挥发性物质为70 pa具有比pa更合适的所有挥发性有机化合物。

从环境监测的角度来看,它是由氢火焰离子检测器检测到的非甲烷碳氢化合物的总称,例如烷基,芳烃,烯烃,卤代烃,酯,醛等。包括酮和其他有机化合物。在此重点关注:VOC和VOCS实际上是同一类型物质挥发性有机化合物S的英文缩写,并且是挥发性有机化合物的常见组成部分。不是一个,所以VOCS更准确。

3.TVOC

室内空气质量研究人员通常将他们采样和分析过的所有室内有机气态物质称为TVOC,TVOC代表挥发性有机化合物的三个首字母缩写,并且已通过各种方式进行了测量。 TVOC通常称为总挥发性有机化合物。 TVOC是影响相对较大的三种室内空气质量污染之一。

世界卫生组织,总挥发性有机化合物(TVOC)是在室温下沸点为50至260°C或更低的挥发性有机化合物的总称。它在室温下以蒸发的形式存在于空气中,其毒性,刺激性,致癌性和特殊气味会影响皮肤和粘膜,对人体造成严重损害。

综上所述,可以将三方之间的关系表示为包容性关系。


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