pH-METER CALIBRATION METHOD

FIELD: thermal and nuclear power stations; meter calibration in extremely pure water of condensate type and power unit feedwater. ^ SUBSTANCE: for pH-meter calibration ammonia whose concentration varies by 1.5 - 2 times is dosed in working medium. Electric conductivity and temperature of working-med...

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Bibliographic Details
Main Authors BUSHUEV E.N, LARIN B.M, KOZJULINA E.V, OPARIN M.JU
Format Patent
LanguageEnglish
Russian
Published 10.01.2005
Edition7
Subjects
CONSTRUCTIONAL DETAILS OF INSTRUMENTS, OR COMPARABLE DETAILSOF OTHER APPARATUS, NOT OTHERWISE PROVIDED FOR
INSTRUMENT DETAILS
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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Summary:FIELD: thermal and nuclear power stations; meter calibration in extremely pure water of condensate type and power unit feedwater. ^ SUBSTANCE: for pH-meter calibration ammonia whose concentration varies by 1.5 - 2 times is dosed in working medium. Electric conductivity and temperature of working-medium H-cationized sample are measured. Measurement results are processed in computer with aid of set of equations characterizing ionic equilibrium in source sample and H-cationized samples. Calculated pH value is compared with measurement results. ^ EFFECT: enhanced precision and reliability of meter calibration in extremely pure waters. ^ 1 cl, 1 dwg, 1 tbl
Bibliography:Application Number: RU20020126046