That was always too confusing, and something stated in either 610B or J001B was never intended to invoke the other document although you could get just about any interpretation to that statement depending on who you talked to in the industry or what lawyer was reading the words.  That's why J-STD-001C ONLY uses the word "SHALL" when a requirement is binding.  No more "MUST" in those requirements! Besides, reliability should drive the requirements, not whether they had a process control system in place.  That concept was also removed by the industry committee members!   Jack

>>> The Job Shop <[log in to unmask]> 03/09/00 12:27PM >>>
Hello All,

Interpretation Of Requirement  ANSI/J-STD001B

REQUIREMENT                 CLASS 1               CLASS  2
CLASS 3

MUST                           Mandatory                Mandatory
Mandatory

SHALL                         Recommended          Recommended*
Mandatory

SHOULD                      Recommended          Recommended
Recommended

----------------------------------------------------------------------------
----

    * For products not following a documented process control
plan,"recommended*" becomes "Mandatory" for Shall  requirements, Class 2
only.

----------------------------------------------------------------------------
----

Class 1:  Genearl Electronics Products                        Consumer
Products

Class 2:  Dedicated Service Electronics Products        Extended Life is
Required, Uninterrupted Service is not Critical

Class 3:  High Performance Electronics Products       Continued Performance
is Critical, user Environment is Harsh.
(Paragraph 1.2 and 1.4, page1,  J-STD-001B
----- Original Message -----
From: Bill Leonard <[log in to unmask]>
To: <[log in to unmask]>
Sent: Thursday, March 09, 2000 4:49 AM
Subject: [TN] IPC-610 Class II and III


> 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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