ISO 17735:2009 工作场所空气 用1-（9-蒽甲基）哌嗪（MAP）试剂和液相色谱法测定空气中异氰酸酯基团总数

标准编号：ISO 17735:2009

中文名称：工作场所空气 用1-（9-蒽甲基）哌嗪（MAP）试剂和液相色谱法测定空气中异氰酸酯基团总数

英文名称：Workplace atmospheres — Determination of total isocyanate groups in air using 1-(9-anthracenylmethyl)piperazine (MAP) reagent and liquid chromatography

发布日期：2009-03

标准范围

ISO 17735:2009为工作场所空气中空气中有机异氰酸酯的采样和分析提供了一般指南。ISO 17735:2009适用于多种含有异氰酸酯基团的有机化合物，包括单官能异氰酸酯(例如苯基异氰酸酯)、二异氰酸酯单体(例如1,6-六亚甲基二异氰酸酯(HDI)、甲苯二异氰酸酯(TDI)、4,4'-二苯基甲烷二异氰酸酯(MDI)和异佛尔酮二异氰酸酯(IPDI))、预聚物(例如HDI的缩二脲和异氰脲酸酯)以及聚氨酯生产或热分解过程中形成的中间产物。在HDI和IPDI产物的混合体系中，由于IPDI单体与HDI-尿苷二酮的共洗脱，使用ISO 17735:2009无法鉴定和定量低水平的IPDI单体。该方法的有用范围(以每个物种/样品的异氰酸酯基团的摩尔数表示)约为1 × 10-10至2 × 10-7。

ISO 17735:2009 gives general guidance for the sampling and analysis of airborne organic isocyanates in workplace air.ISO 17735:2009 is appropriate for a wide range of organic compounds containing isocyanate groups, including monofunctional isocyanates (e.g. phenyl isocyanate), diisocyanate monomers (e.g. 1,6-hexamethylene diisocyanate (HDI), toluene diisocyanate (TDI), 4,4'-diphenylmethane diisocyanate (MDI), and isophorone diisocyanate (IPDI), prepolymers (e.g. the biuret and isocyanurate of HDI), as well as intermediate products formed during production or thermal breakdown of polyurethane.In mixed systems of HDI and IPDI products, it is impossible to identify and quantify low levels of IPDI monomer using ISO 17735:2009, due to coelution of IPDI monomer with HDI-uretidinedione.The useful range of the method, expressed in moles of isocyanate group per species per sample, is approximately 1 x 10^-10 to 2 x 10^-7.

标准预览图