Overview of standards for wastewater monitoring in the chemical industry

Standard Method
pH value
EPA 150.1
DIN 38404-5
Direct measurement
Conductivity EPA 120.1
Alkalinity CaCO3 EPA 310.1  
Acid and base capacity DIN 38409-7
Chemical oxygen demand (COD) ISO 6060
ISO 15705
ASTM D1252
DIN 38409-44
Fluoride EPA 340.2
Chloride DIN 38405-1
Cyanide ASTM D2036-09
Total hardness, Ca2+, Mg2+ EPA 130.2
DIN 38406-3
Anions, e.g., F-, Cl-, Br-, NO2-, NO3-, PO43-, SO42-, etc. ISO 10304-1
ASTM D4327-03
EPA 300.0/EPA 9056
Ion chromatography
Cations, e.g., Li+, Na+, K+, NH4+, Mg2+, Ca2+, etc. ISO 14911:1998
Oxyhalides EPA 300.1, Part B
ASTM D6581-08
Chromium(VI) ISO 10304-3
ASTM D5257-03
EPA 218.7
Metal cyanide complexes ASTM D6994-10
Cyanides DIN 38405-13
Zn, Cd, Pb, Cu, Tl, Ni, Co DIN 38406-16