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NAVAIR 17–20SC–42
TECHNICAL MANUAL
INSTRUMENT CALIBRATION PROCEDURE
SC–42
pH METERS
(HAVING pH TOLERANCES NOT BETTER
THAN +
0.03 PH)
THIS PUBLICATION SUPERSEDES NAVAIR 17–20SC–42
DATED 1 DECEMBER 1994
DISTRIBUTION STATEMENT C. DISTRIBUTION AUTHORIZED TO U.S. GOVERNMENT AGENCIES AND THEIR
CONTRACTORS TO PROTECT PUBLICATIONS REQUIRED FOR OFFICIAL USE OR FOR ADMINISTRATIVE OR
OPERATIONAL PURPOSES ONLY. OTHER REQUESTS FOR THIS DOCUMENT SHALL BE REFERRED TO NAVY
MEASUREMENT SCIENCE DIRECTORATE, NAVAL WARFARE ASSESSMENT STATION, P.O. BOX 5000
CORONA, CA 91718–5000
SC–42
DESTRUCTION NOTICE– FOR UNCLASSIFIED, LIMITED DOCUMENTS, DESTROY BY ANY
METHOD THAT WILL PREVENT DISCLOSURE OF CONTENTS OR “RECONSTRUCTION OF THE
DOCUMENT.”
PUBLISHED BY DIRECTION OF COMMANDER NAVAL AIR SYSTEMS COMMAND
1 MAY 1998
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Strany 1 - 1 MAY 1998

NAVAIR 17–20SC–42TECHNICAL MANUALINSTRUMENT CALIBRATION PROCEDURESC–42pH METERS(HAVING pH TOLERANCES NOT BETTER THAN +0.03 PH)THIS PUBLICATION SUPER

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TEST INST (S) CALIBRATION CHECKLIST PROC. NO.Beckman Instruments pHI 31 pH Meter MFG. MODEL SER. NO.PROCEDURE STEP NO. (1) FUNCTION TE

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TEST INST (S) CALIBRATION CHECKLIST PROC. NO.Beckman Instruments pHI 31 pH Meter MFG. MODEL SER. NO.PROCEDURE STEP NO. (1) FUNCTION TE

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TEST INST (S) CALIBRATION CHECKLIST PROC. NO.Corning M103 pH Meter MFG. MODEL SER. NO.PROCEDURE STEP NO. (1) FUNCTION TESTED

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TEST INST (S) CALIBRATION CHECKLIST PROC. NO.Corning M103 pH Meter MFG. MODEL SER. NO.PROCEDURE STEP NO. (1) FUNCTION TESTED

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TEST INST (S) CALIBRATION CHECKLIST PROC. NO.VWR Scientific 34100–674 pH Meter MFG. MODEL SER. NO.PROCEDURE STEP NO. (1) FUNCTION TEST

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TEST INST (S) CALIBRATION CHECKLIST PROC. NO.VWR Scientific 34100–674 pH Meter MFG. MODEL SER. NO.PROCEDURE STEP NO. (1) FUNCTION TEST

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TEST INST (S) CALIBRATION CHECKLIST PROC. NO.Orion Research 201 Digital pH Meter MFG. MODEL SER. NO.PROCEDURE STEP NO. (1) FUNCTION TE

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TEST INST (S) CALIBRATION CHECKLIST PROC. NO.Beckman Instruments 2000 Ion Analyzer MFG. MODEL SER. NO.PROCEDURE STEP NO. (1) FUNCTION

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(mV) (mV)4.1.4 Depress TI – mV pushbutton –1100 –1098 to –1102–1300 –1298 to –13024.2 pH Indication Tests4.2.2 TI Controls(s):Depress STBY, pH, and EX

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TEST INST (S) CALIBRATION CHECKLIST PROC. NO.Beckman Instruments 2000 Ion Analyzer MFG. MODEL SER. NO.PROCEDURE STEP NO. (1) FUNCTION

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LIST OF EFFECTIVE PAGESThe purpose of this list is to identify the pages in this document affected by any technical content changes made since theprev

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TABLE OF CONTENTSSection Page1 Introduction and Description 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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SECTION 1INTRODUCTION AND DESCRIPTION1.1 This procedure describes the calibration of pH Meters having pH tolerances not better than +0.03 pH. The i

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Valhalla 2720 GSWahl 392MLeeds and Northrup 93301Lab stockGeneral Cement 8867 orLocal supplyOmega PHA–4, PHA–7 & PHA–10 orOrion 910104, 910107 &am

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SECTION 4CALIBRATION PROCESSNOTEUnless otherwise specified, verify the results of each test and take corrective action whenever the test requirement i

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4.2 PH INDICATION TESTS NOTE The following test results will be invalid unless the ambient temperature of the TI can be maintained within69 to 77 deg

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4.3.4 Set the TI controls as specified on the applicable checklist. NOTE For TIs that use manual temperature compensation only, place the digital the

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4.4.4 Set and allow the temperature chamber and TI to stabilize at 25C (77F) and verify that the TI indicates within thespecified limits of the sta

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