October 24, 2025
Certificate of Non-use for "DISCO Prohibited Substances/Restricted Substances"
We hereby certify that our precision processing tools and functional consumables do not contain the 10 substances in RoHS directive (2011/65/EU) and contain no more than the respective threshold amounts of DISCO Prohibited/Restricted Substances.
【Precision Processing Tools】
- Dicing blades
- Grinding wheels
- Dry polishing wheels
- Dresser boards *Used in the plastic base only, not in the wheel section, for parts manufactured and shipped starting in principle from July 22, 2019
- PRECUTBOARD®
【Functional Consumables】
- Cutting water additives
- Water-soluble protective film solution
【DISCO Prohibited/Restricted Substances】
| Group of substances | Threshold value | Category |
|---|---|---|
| Tri-substituted organostannic compounds | Prohibited | Prohibited substances (Control level A) |
| Polychlorinated biphenyls | ||
| Polychlorinated naphthalenes | ||
| Shortchain chlorinated paraffins | ||
| Asbestos | ||
| Azocolorants and azo dyes | ||
| Radioactive substances | ||
| Ozone depleting substances | ||
| Ceramic fiber | ||
| Cadmium / Cadmium compounds | ≤100 ppm | Restricted substances (Control level B) RoHS directive restricted substances |
| Chromium VI compounds | ≤1,000 ppm | |
| Lead / Lead compounds | ||
| Mercury / Mercury compounds | ||
| Polybrominated biphenyls (PBBs) | ||
| Polybrominated diphenylethers (PBDEs) | ||
| Bis (2-ethylhexyl) phthalate (DEHP) | ||
| Dibutyl phthalate (DBP) | ||
| Butyl benzyl phthalate (BBP) | ||
| Diisobutyl phthalate (DIBP) |
Note: Based on "List of DISCO Controlled Substances," April 2017, Ver. 3.00
Note: PRECUTBOARD is a registered trademark for DISCO Corporation in Japan and other countries.