SECTION 1
INTRODUCTION AND DESCRIPTION
1.1 This procedure describes the calibration of pH Meters having pH tolerances not better than +0.03 pH. The instrument
being calibrated is referred to herein as the TI (Test Instrument).
1.2 All comments concerning this procedure should be directed to Navy Measurement Science Directorate, Naval Warfare
Assessment Station, P.O. Box 5000, Corona, CA 91718–5000.
1.3 This procedure includes tests of essential performance parameters only. Any malfunction noticed during calibration,
whether specifically tested for or not, should be corrected.
Table 1. Calibration Description
Performance
Specifications
TI
Characteristics
Test
Method
mV indication
pH indication
pH calibration
Temperature indication
Range: –1991 to +1999 mV
Tolerance: +
1 mV, +1 LSD
Range: 0 to 14 pH
Tolerance: +0.03 pH
Range: 0 to 14 pH
Tolerance: +
0.03 pH (relative)
Range: 0 to 99.9 C
Tolerance: +0.5 C
Range: –50 to 150 C
Tolerance: +5 C
TI indications are compared to
a DC millivolt standard.
TI indications are compared to
a DC millivolt standard.
Compared to standard pH
buffers.
TI indications are compared to
a digital thermometer.
SECTION 2
EQUIPMENT REQUIREMENTS
NOTES
Minimum use specifications are the principal parameters required for performance of the calibration, and are
included to assist in the selection of alternate equipment, which may be used at the discretion of the using
laboratory. Satisfactory performance of alternate items shall be verified prior to use. All applicable
equipment must bear evidence of current calibration.
The instruments utilized in this procedure were selected from those known to be available at Navy
calibration facilities, and the listing by make or model number carries no implication of preference,
recommendation, or approval for use by other agencies. It is recognized that equivalent equipment produced
by other manufacturers may be capable of equally satisfactory performance in this procedure.
NAVAIR 17–20SC–42
1
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Komentarze do niniejszej Instrukcji