Straight from the horses mouth:

1.4.1 Classification
Criteria defined in this document reflect three classes, which
are as follows:

Class 1 ― General Electronic Products
Includes consumer products, some computer and computer
peripherals suitable for applications where cosmetic imperfections
are not important and the major requirement is function
of the completed electronic assembly.

Class 2 ― Dedicated Service Electronic Products
Includes communications equipment, sophisticated business
machines, and instruments where high performance and
extended life is required and for which uninterrupted service is
desired but not critical. Certain cosmetic imperfections are
allowed.

Class 3 ― High Performance Electronic Products
Includes the equipment and products where continued performance
or performance-on-demand is critical. Equipment
downtime cannot be tolerated and must function when
required, such as in life support items or flight control sys-tems.
Assemblies in this class are suitable for applications
where high levels of assurance are required, service is essential,
or the end-use environment may be uncommonly harsh.

>>> Bill Leonard <[log in to unmask]> 03/09/00 06:49AM >>>
Good day,

Could someone tell me what is meant by Class II and III when referring to
IPC-610B? What is this significance?

Best regards,

Bill Leonard

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