利用环境舱法测定不同涂刷工艺的木家具面板在舱内一段时间的挥发性有机化合物释放量,结果表明,相同涂刷工艺的同种木家具样品所测得的挥发性有机化合物释放量相近,不同涂刷工艺的同种木家具面板样品中挥发性有机化合物释放量有一定差别,而同种涂刷工艺的不同木家具面板样品中挥发性有机化合物的释放量也不同.采用UV底漆涂刷的面板样品的挥发性有机化合物释放量相对最低,测试结果满足木家具中挥发性有机化合物的释放限量要求.

建立了沙发面料中痕量VOCs分析方法.本方法将沙发面料样品置于特定条件下的采样袋中,以Tenax管富集,用热脱附-气相色谱质谱(TD-GC-MS)进行分析.对样品前处理条件和分析条件进行了优化,线性范围为(5～100)ng,相关系数R2为0.9981～0.9998,检测限为(0.002～0.010)mg·m-3,平均加标回收率为86.4％～100.5％,RSD(n=7)为1.2％～5.9％.该方法模拟样品实际使用条件,符合沙发革日常使用下的VOCs释放现状,适用于沙发革中痕量挥发性有机化合物的测试分析,可作为现有皮革和人造革VOCs测试方法的补充.

The service pattern for test & certification of the intertek group in china can be classified to four kinds.First,perfect allocated services system for both core service and extended services.Second,the service targets varies from manufacturing enterprise to raw materials suppliers and buyers. Third, the intertek group offers the integrated solutions.Forth,the O2O service has generated considerable benefits.The four service pattern play the important role in the intertek group development.It set up an example for the third-party test &certification organizations in china.

中美玩具增塑剂的检测标准及法规对比表明,两国玩具增塑剂的检测方法基本相同,限量指标也一致.中国玩具被美方查扣的原因并非源于中美标准差异.中国玩具生产企业应依据出口地的相关标准和法规要求,采信有资质的检测机构,严格执行检测认证程序,避免在贸易中处于不利地位.

One of the general trends of household appliance is that the product is attached with Purification function.Referring to GB/T18801,the purification efficiency of the computer hosts are tested in 30m3 testing chamber.The decomposition to formaldehyde in the air is obvious.And the purification efficiency for the computer host increased one year later.

对北京流通领域的板式儿童家具分别进行抽样,参照国际标准ISO16000-9对其TVOC释放量进行了试验研究.测试结果表明:测量获得挥发性有机化合物种类高达60种,有酸、醛、醇、芳香烃、烷烃等多大类型.4个样品舱内TVOC含量,均未达到室内空气质量标准的TVOC限量要求.儿童家具是形成儿童房室内空气中挥发性有机物的一个主要来源.提出了可行、有效的家具检测测试方案.

Based on the analysis of the formaldehyde, benzene and TVOC concentrations in Beijing, it is indicated that 1 indoor air quality is much better than before, 2 the pass rate of formaldehyde and benzene is much higher than that of TVOC. And the control technology for TVOC pollution becomes the main topic in indoor air study.

Pyrolysis apparatus was designed and manufactured for pyrolysis of RDF.By digesting the heavy metal contents including Cu,Pb,Cd,Cr and Zn in the pyrolysis residues,it was found that:the heavy metal contents in the residues decreased with increasing pyrolysis temperature and increasing oxygen content;at the same temperature,the lower boiling point of the heavy metal has the lower mass fraction it occupies.