Yes, IPC has made a product classification in every standard, including the J-STD-001.
This product classification is as follows:
IPC J-STD-001 Class 1 - General electronic products (e.g. consumer electronics, these are products where the main requirement is the function of the final product)
IPC J-STD-001 Class 2 - Dedicated service electronics (e.g. industrial machines, test equipment, etc. these are products that have to work longer, if they fail, a lot of money will be lost)
IPC J-STD-001 Class 3 - High reliability electronics (e.g. aircraft, military products and life-supporting medical equipment, these products may not fail otherwise it is life-threatening).