Recently Published

I/LA32-A—Newborn Screening by Tandem Mass Spectrometry; Approved Guideline
This guideline serves as a reference source for the numerous activities related to
operating a tandem mass spectrometry laboratory as part of public and private
newborn screening programs with the goal of creating greater test accuracy,
performance, and consistency among laboratories, thereby ensuring data quality
that will ultimately benefit all newborns worldwide.

This document is designed to assist newborn screening laboratory personnel in
the routine use of MS/MS for the detection of metabolites that may indicate certain
metabolic disorders using dried blood spot (DBS) specimens.
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EP09-A2-IR—Method Comparison and Bias Estimation Using Patient Samples;
Approved Guideline - Second Edition (Interim Revision)
Revisions include corrections in a few formulas, addition of definitions of symbols and
notes of  clarification, and regeneration of a graph in the appendix required for consistency
between the text and formulas in the body of the document and in the appendices.