ERM-EC680,ERM-EC681标准物质 RoHS related CRMs available from IRMM Certified Reference Materials for RoHS testing
ERM-EC680K,和ERM-EC681k已停产,批次的产品为ERM-EC681M,和680M符合RoHS指令要求塑胶(polyethylene)参考标准物质,含四种重金属,100克颗粒/瓶 RoHS related CRMs 2 polyethylene materials certified for Br, Cd, Cl,Cr, Hg, Pb (and other elements)trace elements in HDPE