Proof certification
print quality can offer you a small certification to certify that you are able to produce colour-accurate proofs in accordance with ISO 12647-7.
If you are interested, please contact us. We will promptly send you the test form to be proofed. You must comply with the tolerances that are measured in the ugra/Fogra Media Wedge CMYK V3. A properly displayed status line is also required.
This must contain at least:
- Label of proof system
- Colouring agent (which toner or which ink)
- Substrate
- Printing condition to be simulated (e.g. FOGRA39, i.e. offset printing in accordance with ISO 12647-2, PT 1/2, 60 grid)
- Colour management profiles
- Time and date of printing
The following tolerances must be adhered to under ISO 12647-7 or Premium PSO:
| Deviation tolerances (Target value – proof) |
Tolerances ISO 12647-7 |
Premium-PSO Tolerances |
|---|---|---|
| Substrate – paper white simulation | Max. ΔE= 3 | Max. ΔE= 2,5 |
| Average of all fields | Max. ΔE= 3 | Max. ΔE= 2,5 |
| Maximum of all fields | Max. ΔE= 6 | Max. ΔE= 5 |
| Maximum primary colours | Max. ΔE= 5 | Max. ΔE= 4 |
| Hue distance primary colours | Max. ΔH= 2,5 | Max. ΔH= 2,2 |
| Hue distance medium grey patches | Max. ΔH= 1,5 | Max. ΔH= 1,3 |
You can obtain a special offer on request.