F4 Star Certificate
F four-star standard certification is the highest among the four grades of Japanese "F series" standard. From the limit value of formaldehyde emission of 0.3 mg/L, it is further than E0 standard of 0.5 mg/L. Its core lies in the content and release standard of formaldehyde.
- 2018-12-21 - 2023-12-20
- Certification bodies:
- Japan“F” Series Certification Center