Assay of water pollutants
Continuous quick measurement of biochemical oxygen demand and ap
Continuous RBCOD measurement
Manganese III method for chemical oxygen demand analysis
Method and apparatus for measuring the nitrification effectivene
Method for determining constituents in water
Method for determining the respiration rate of a respiring mater
Method for measuring the ability of a yeast cell extract to infl
Method for monitoring fouling in commercial waters
Photoelectrochemical determination of chemical oxygen demand
Process and device for determining the biological oxygen demand
Process for determining oxidizable substances contained in an aq