| Symbol | A |
|---|---|
| Unit | - |
| Attribute-ID | mechanicus_iso_1328_2013_quality_grade |
| Numeric ID | 200288 |
| Value Type | PMInteger |
The ISO system defines 12 quality levels, with 0 being the highest quality and 11 the lowest. The qualities correspond approximately to those of ISO 1328 (1995) and DIN 3961.