Issued: 01-05-2012 Revision: 1.0 Copyright 2012 Agilent Technologies
Page 10 of 13
The meter automatically calculates and sets a new TDS factor. Calibration is done.
4. Performance Verification
For performance verification, evaluation of accuracy, inter-assay RSD and intra-assay RSD
will consist of at least three measurement sets. Each set will measure pH of three test
samples representing low, medium and high pH value. The test buffers were the same as the
standard buffers. To evaluate precision of the inter-assay and the intra-assay, three
measurement sets must be conducted in three different days. The acceptance criterion is
bracketed in the table in appendix document.
The accuracy and the precision of pH meter should be validated. Measure three testing
buffers. Each buffer is measured six times continuously. Repeat the procedure three times;
each repeat should be at least 24 hours apart. Calculate intra-day and inter-day RSD%.
5. Appendix
5.1 Change history
5.2 IQ - Mete Information
5.3 IQ – Environmental Conditions
Power input: 100 to 240 VAC, 1 A
Power output: 9 VDC, 1 A
5.4 IQ - Component Information
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