Table. 1.

Breakdown of lead time at which proficiency test materials were delivered

Section Lead time (hr)
Section 1 27 hours after shipping (after 1 day, before 6 PM)
Section 2 27.01?41.00 (after 2 days, before 8 AM)
Section 3 41.01?51.00 (after 2 days, before 6 PM)
Section 4 >51.01 (after 2 days, after 6 PM)
Lab Med Qual Assur 2022;44:55~60 https://doi.org/10.15263/jlmqa.2022.44.1.55
© Lab Med Qual Assur