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EN 17721
Plant biostimulants - Determination of the pH for liquid microbial plant biostimulants/pH in microbial products - Determination of pH
IEC 20/942/CD
IEC 60754-2 Ed. 2.0 Test on gases evolved during combustion of materials from cables - Part 2: Determination of acidity (by pH measurement) and conductivity
IEC 20/1180/RR
Review report on IEC 60754-1 Ed.2: Test on gases evolved during combustion of materials from cables - Part 1: Determination of the amount of halogen acid gas, IEC 60754-2 Ed.1: Test on gases evolved during combustion of electric cables - Part 2:Determination of degree of acidity of gases evolved during the combustion of materials taken from electric cables by measuring pH and conductivity
IEC 65D/112/DC
pH Measurements in difficult media - Definitions, standards and procedures
ISO/AWI 18191
Water quality - Determination of pHt in sea water - Method using the indicator dye m-cresol purple
ISO/TC 147/SC 2/WG 67
Physicochemical parameters in seawater
NA 119-01-03-01-17 AK -dormant
pH value
NA 062-09-21 AA
pH measurement technique
DIN EN 17721
Plant biostimulants - Determination of the pH for liquid microbial plant biostimulants/pH in microbial products - Determination of pH; German version EN 17721:2024
DIN 19266
pH measurement - Reference buffer solutions for the calibration of pH measuring equipment
