Graded Boxes Question

When GAI or PSA is grading a CELLO BOX, are all the individual packs graded? In other words, is it safe to reason that when a box is graded GAI 9 all the packs within were therefore deemed to be 9's? Thanks to anyone who can clear this up for me.
0
Comments
That is correct. PSA doesn't grade boxes anyway, but GAI assigns a grade (supposedly) based on the condition of the box itself, not the pack inside. They will also grade full boxes even if they are not from a sealed case.
Collecting 1970s Topps baseball wax, rack and cello packs, as well as PCGS graded Half Cents, Large Cents, Two Cent pieces and Three Cent Silver pieces.
D's: 50P,49S,45D+S,43D,41S,40D,39D+S,38D+S,37D+S,36S,35D+S,all 16-34's
Q's: 52S,47S,46S,40S,39S,38S,37D+S,36D+S,35D,34D,32D+S
74T: 241,435,610,654 97 Finest silver: 115,135,139,145,310
73T:31,55,61,62,63,64,65,66,67,68,80,152,165,189,213,235,237,257,341,344,377,379,390,422,433,453,480,497,545,554,563,580,606,613,630
95 Ultra GM Sets: Golden Prospects,HR Kings,On-Base Leaders,Power Plus,RBI Kings,Rising Stars
Collecting 1970s Topps baseball wax, rack and cello packs, as well as PCGS graded Half Cents, Large Cents, Two Cent pieces and Three Cent Silver pieces.
I do know they will give 10 pack grades to packs that are not from a sealed case/box (I got a few recently), so that may be one change since the original Murphy days.
GAI will grade a box that is not part of a case. I've sent in several single boxes recently.
If the box gets a 9 grade, many of the packs will grade around a 9, but not necessarily all. The overall box grade is closely related to the average grade of the packs, not the minimum grade, so one 7 pack in the box won't make the box grade a 7. They do authenticate the packs in the box before grading it.
Collecting 1970s Topps baseball wax, rack and cello packs, as well as PCGS graded Half Cents, Large Cents, Two Cent pieces and Three Cent Silver pieces.