Taiwan Provincial Standard of the People's Republic of China
Latest
CNS 6839-1980
Scope
This standard applies to the glass electrode required to determine the Ph value using the film potential difference of a glass film, and the reference electrode used in combination. Note: This standard does not include special purpose and automatic test instruments.
CNS 6839-1980 history
1980CNS 6839-1980 Glass Electrodes for Measurement of pH Value