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For five decades, Quality Control Professionals have been using the  AQL Inspector's Rule. This easy to use slide rule streamlines the process of identifying sampling plans  for inspection using the MIL-STD-105E, ANSI/ASQ Z1.4 or ISO 2859-1 standard.

The AQL Inspector's Rule covers:

  • Single and Double sampling plans.
  • AQL levels from .065 to 15.
  • Normal, Tightened and Reduced Inspection levels.

February 2026: ISO 2859-1:2026 standard revision has been released.  Click here for our notes on this standard revision.

AQL Rule ANSI/ASQ Z1.4 English
AQL Rule ANSI/ASQ Z1.4 English
$25.00
AQL Rule ANSI/ASQ Z1.4 Spanish
AQL Rule ANSI/ASQ Z1.4 Spanish
$25.00
AQL Rule ISO 2859-1 English
AQL Rule ISO 2859-1 English
$25.00
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