塑胶(polyethylene)参考标准物质,符合RoHS指令 (ppm = mg/kg) ERM-EC680高浓度 ERM-EC680K低浓度 ERM-EC681K高浓度 ERM-EC681低浓度 ERM-EC680 As | 30.9 ppm | Br | 808 ppm | Cd | 140.8 ppm | Cl | 810 ppm | Cr | 114.6 ppm | Hg | 25.3 ppm | Pb | 107.6 ppm | S | 670 ppm | ERM-EC680K As | 4.1 ppm | Br | 96 ppm | Cd | 19.6 ppm | Cl | 102.2 ppm | Cr | 20.2 ppm | Hg | 4.64 ppm | Pb | 13.6 ppm | S | 76 ppm | Sb | 10.1 ppm | ERM-EC681 As | 3.93 ppm | Br | 98 ppm | Cd | 21.7 ppm | Cl | 92.9 ppm | Cr | 17.7 ppm | Hg | 4.50 ppm | Pb | 13.8 ppm | S | 78 ppm | ERM-EC681K As | 29.1 ppm | Br | 0.77 ppm | Cd | 137 ppm | Cl | 0.8 ppm | Cr | 100 ppm | Hg | 23.7 ppm | Pb | 98 ppm | S | 0.63 ppm | Sb | 99 ppm | |