Patent · US Expired

Method for calibration of a measurement apparatus

US5185263A · kind A · utility

31Cited by

6References

17Claims

0Family size

Assignee

AVL Medical Instruments · CH

Inventors

Herbert Kroneis · Graz, AT
Hermann Marsoner · St. Johann in Tirol, AT
Taghi Noormofidi · Graz, AT

Key dates

Filing date	Nov 4, 1991
Grant date	Feb 9, 1993
Priority date	—
Expiry date	Nov 4, 2011

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T436/115831
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

In order to calibrate a measurement apparatus used for determining at least the pH and pCO.sub.2 values in aqueous media, two aqueous base solutions A and B with good storage stability are mixed at a defined ratio immediately prior to calibration, the desired pH and pCO.sub.2 values being provided for calibration of the measuring electrodes of the measurement apparatus only after chemical reaction of the base solutions A and B has taken place.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.