Plastic Polyethylene Quality Control Standard for WEEE RoHS Requirements, Disc

QC Standard for ROHS-PE9-5ED-31. Plastic Polyethylene Calibration Standards for WEEE RoHS Requirements, Disc, 1 standard per set, 5 elements per standard, 31 mm each, Br @ 0.0250 Wt%, Cd @ 0.0050 Wt%, Cr @ 0.0500 Wt%, Hg @ 0.0500 Wt%, Pb @ 0.0500 Wt%