Certificate of Non-use of DISCO Restricted Substances


We hereby certify that our precision processing tooling does not contain the 15 substances specified by DISCO or contains no more than their respective threshold amounts. The substances prohibited by DISCO include the six substances prohibited by the RoHS directive.

【Precision Processing Tooling】

【DISCO Restricted Substances

Group of substances Threshold value
Cadmium and Cadmium Compounds =<100ppm
Hexavalent Chromium Compounds =<1,000ppm
Lead and Lead Compounds =<1,000ppm
Mercury and Mercury Compounds =<1,000ppm
Tributyl Tin Oxide (TBTO) Prohibited
Tributyl Tins & Triphenyl Tins Prohibited
Polybrominated Biphenyls (PBBs) =<1,000ppm
Polybrominated Diphenylethers (PBDEs) =<1,000ppm
Polychlorinated Biphenyls (PCBs) Prohibited
PolychloroNapthalenes (Cl => 3) Prohibited
Short Chain Chlorinated Paraffins Prohibited
Asbestos Prohibited
Azo Colorants Prohibited
Radioactive Substances Prohibited
Ozone Depleting Substances (CFC,HBFC,HCFC etc) Prohibited

※Specified in the Green Procurement "List of Disco Restricted Substances" (Feb. 2005(Ver.2))