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Joined 2026-09-21 Message
Tagged: Work by Hanna Instruments
Publisher: Hanna Instruments.
Online text: www.nist.gov/document/hanna-5221-ph-meter-manual
Cited passages: Hanna Instruments, HI5221 & HI5222 instruction manual, pp. 45–47, 49–50 and 73–74: calibration, measurement, rinsing and electrode conditioning.