State System for Ensuring Uniform Measurement. Glass electrodes, including combined electrodes, for determining the activity of hydrogen ions (pH) in aqueous solutions. Verification method.
NORM herausgegeben am 1.3.2004
Designation standards: R 50.2.035-2004
Publication date standards: 1.3.2004
The number of pages: 17
Approximate weight : 51 g (0.11 lbs)
Country: Russian technical standard
Kategorie: R