OPSpecs Chart N=4 90% AQA

This is an example OPSpecs chart for a 10% analytical quality requirement with 90% AQA (analytical quality assurance) and with N=4 (4 control measurements).

OPSPECS CHARTS:

10% Analytical Quality Requirement

90% AQA (Analytical Quality Assurance, error detection)

Common control rules with N's of 4