It is.  I just looked it up earlier this week.  Be forewarned that 3M
doesn't label the core of the tape roll with this part number.  Once
it's out of the box, it's hard to know if you have the right tape.

> ----------
> From:         Gerard O'Brien[SMTP:[log in to unmask]]
> Reply To:     TechNet E-Mail Forum.;Gerard O'Brien
> Sent:         Friday, May 21, 1999 7:17 AM
> To:   [log in to unmask]
> Subject:      [TN] IPC-SM 840 Tape Spec
>
> can some one please confirm for me that the tape used for mask
> adhesion testing is
> 1/2" wide 3M 600 tape.
> Regards.
> Gerard O'Brien
>

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