ANSI/ASQ Z1.4-2008 Standard
The ASQ (American Society for Quality) has released the ANSI/ASQ Z1.4-2008 standard. The forward of this standard states:
"This standard is a reaffirmation of ANSI/ASQC Z1.4-2003, "Sampling Procedures and Tables for Inspection by Attributes."
There are no changes from the ANSI/ASQ Z1.4-2003 to ANSI/ASQ Z1.4-2008 standard. All AQL Inspector's Rule conforming to ANSI/ASQ Z1.4-2003 do conform to ANSI/ASQ Z1.4-2008.
ANSI/ASQ Z1.4-2003 Standard
In December 2003 the ASQ (American Society for Quality) released the ANSI/ASQ Z1.4-2003 standard. This is a revision to the ANSI/ASQC Z1.4-1993 standard. The ASQ began shipping this new standard revision in middle January 2004.
Changes in ANSI/ASQ Z1.4-2003 revision
The only change to the AQL Inspector's Rule (ANSI version) for the ANSI/ASQ Z1.4-2003 revision will be item 4 above. None of the numbers, sample plans or operation of the AQL Inspector's Rule changes with this revision.
The AQL Inspection Manual will be updated in 2004 to include the items list above.
All previous AQL Inspector's Rule's (ANSI version) conform to and may be used for inspection to the ANSI/ASQ Z1.4 2003 and 2008 revisions with the one note listed in item 4 above.