Laboratory Methods (Soils/Waters)

The table below lists the principal methods used for the routine testing of samples submitted to the laboratory. The APHA reference refers to the latest edition of "Standard Methods for the Examination of Water and Wastewater". Most of these procedures are employed for testing both soil and water matrices, with soil samples solubilized in some way prior to determination of the analyte. Tests marked with an asterisk are non NATA accredited.

Analyte Method
pH APHA 4500B
Conductivity APHA 2510B
Alkalies Na,K,Ca,Mg APHA 3120
Ammonia NH4+ APHA 4500G
Fluoride F- APHA 4500C
Chloride Cl- APHA 4500D
Alkalinity OH/CO3/HCO3- APHA 2320B
Nitrate NO3- APHA 4500F
Nitrite NO2- APHA 4500B
Sulphate SO4- APHA 4110B
Phosphate PO4- APHA 4500F
Sulphite SO3- APHA 4500B
Sulphide S- APHA 4500F
Total Solids APHA 2540B
Suspended Solids APHA 2540D
Total Dissolved Solids APHA 2540C
Volatile Suspended Solids APHA 2540E
Acidity APHA 2310B
Biochemical Oxygen Demand APHA 5210B
Chemical Oxygen Demand APHA 5220D
*Chlorine (Total/Free) APHA 4500G
Colour APHA 2120B
*Formaldehyde In-House
Hardness APHA 2340B
Hexavalent Chromium Cr(6+) APHA 3500B
Cyanide:
Free
Total
*WAD
*Amenable
APHA 4500E
APHA 4500CE
APHA 4500IE
APHA 4500GE
Ferrous Iron Fe(2+) APHA 3500B
MBAS APHA 5540C
Total Kjedahl Nitrogen APHA 4500B
Total Grease APHA 5520D
Phenolics APHA 5530BD
Total Phosphorus APHA 4500BF
*Eh In-House
Dissolved Oxygen APHA 4500G
Turbidity APHA 2130B
Total Organic Carbon APHA 5310C
*Dissolved Organic Carbon APHA 5310C
*Thiosulphate In-House
Metals:
Metals (Air/Acetylene)
Metals (Nitrous Oxide)
Metals (ICP-OES)
Hydrides
Mercury
APHA 3111B/C
APHA 3111D
APHA 3120
APHA 3114B
APHA 3112B
SOILS ONLY:
TOC/*TC (Combustion) In-House
Total Sulphur AS1141.36
Organic Matter AS1289.4.1.1
CEC (Silver Thiourea) In-House
Anions/Cations (Soluble) In-House
*Resistivity AS1289.4.4.1
Sugar AS1141.35
Dust Gauges AS3580.10.1
Cement Content In-house
*Acid Neutralising Capacity In-house
*Phosphorus Sorption In-house
*Available Phosphorus (Bray/Other) In-house
Leachate TCLP In-house
Lead (Paint/Wipes/Filters) In-house
*Emerson Class In-house