Printed Circuit Board: IPC Class Definitions for Class 1, 2 & 3 Electronics
In electronics manufacturing, printed circuit boards are separated into three categories: 1, 2 and 3. The categories reflect the level of quality of each circuit board type, from lowest (Class 1 standards) to highest (Class 3 standards). This classification system was developed and is monitored by IPC under the IPC-6011 standard. Perhaps the major difference