详细说明
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 | 92.9ppm |
| Cr | 17.7ppm |
| Hg | 4.50ppm |
| Pb | 13.8ppm |
| S | 78 ppm |
ERM-EC681K
| As | 29.1ppm |
| Br | 0.77ppm |
| Cd | 137ppm |
| Cl | 0.8ppm |
| Cr | 100ppm |
| Hg | 23.7ppm |
| Pb | 98ppm |
| S | 0.63ppm |
| Sb | 99ppm |