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Formaldehyde content of HDF panels according to EN ISO 12460-5.
| HDF Type | Adhesive | UF Resin Content (%) |
Ammonium Lignosulfonate Content (%) |
Formaldehyde Content (mg/100 g) |
|---|---|---|---|---|
| 1 | UF + ALS | 3 | 6 | 1.0 ± 0.1 |
| 2 | UF + ALS | 3 | 8 | 0.8 ± 0.1 |
| 3 | UF + ALS | 3 | 10 | 0.7 ± 0.1 |
| 4 | UF | 6 | - | 4.3 ± 0.1 |
