Contents

Click a page name

NADP Spring Meeting Preliminary Results for 1997
Field Blank and Reference Samples:
Field Blank Program: Paired Sample Results
Blind-Audit Program
Field Blank Program: Relative Percent Differences
Field Blank Program: Absolute Percent Differences
Field Blank Program: Paired-Sample Concentration Differences
How Blind Audit Samples Are Submitted
OVERVIEW OF HOW BLIND AUDIT SAMPLES ARE SUBMITTED
Blind Audit Program: Paired Sample Results
Blind Audit Program: Relative Percent Differences
Blind Audit Program: Absolute Percent Differences
Blind Audit Program: Paired-Sample Concentration Differences
Median Relative Percent Differences from 1990 to 1997
Median Relative Percent Differences from 1990 to 1997
Median Relative Percent Differences (1990 to 1997)
Median Relative Percent Differences (1990 to 1997)