Glossary

• Accepted reference value
• Accuracy
• Analytical measurement system
• Assignable cause
• ASTM D6299-13 and EPA Tier 3
• Bias
• Blind submission
• Check standard
• Common (chance, random) cause
• Control limits
• Double blind submission
• In-statistical-control
• Lot
• Precision
• Proficiency testing
• Quality control (QC) sample
• Repeatability conditions
• Reproducibility conditions
• Site expected value (SEV)
• Site precision
• Site precision conditions
• Site precision standard deviation
• Validation audit sample