| Code P01 | Parameter | Unit |
| ALKYZZXX | Total alkalinity per unit volume of the water body | MicroEquivalents per litre |
| AMONAAD1 | Concentration of ammonium {NH4+ CAS 14798-03-9} per unit volume of the water body [dissolved plus reactive particulate <GF/F phase] by filtration and colorimetric autoanalysis | Micromoles per litre |
| DOXYZZXX | Concentration of oxygen {O2 CAS 7782-44-7} per unit volume of the water body [dissolved plus reactive particulate phase] | Micromoles per litre |
| NTOTZZXX | Concentration of nitrogen (total) per unit volume of the water body [dissolved plus reactive particulate phase] | Micromoles per litre |
| NTRIAAD1 | Concentration of nitrite {NO2- CAS 14797-65-0} per unit volume of the water body [dissolved plus reactive particulate <GF/F phase] by filtration and colorimetric autoanalysis | Micromoles per litre |
| ODSDM014 | Concentration of nitrate {NO3- CAS 14797-55-8} per unit volume of the water body [dissolved plus reactive particulate <unknown phase] by filtration and colorimetric autoanalysis and correction for nitrite | Micromoles per litre |
| PHOSMAZX | Concentration of phosphate {PO43- CAS 14265-44-2} per unit volume of the water body [unknown phase] by manual colorimetric analysis | Micromoles per litre |
| PHXXPR01 | pH per unit volume of the water body by pH electrode | pH units |
| PRESPR01 | Pressure (spatial co-ordinate) exerted by the water body by profiling pressure sensor and corrected to read zero at sea level | Metres |
| PSALCC01 | Practical salinity of the water body by CTD and computation using UNESCO 1983 algorithm and calibration against independent measurements | Dimensionless |
| SLCAAAD1 | Concentration of silicate {SiO44- CAS 17181-37-2} per unit volume of the water body [dissolved plus reactive particulate <GF/F phase] by filtration and colorimetric autoanalysis | Micromoles per litre |
| TEMPPR01 | Temperature of the water body | Degrees Celsius |
| TPHSZZXX | Concentration of total phosphorus {P CAS 7723-14-0} per unit volume of the water body [dissolved plus reactive particulate phase] | Micromoles per litre |
