Acid Based Accounting (ABA)
Maxxam offers all acid base accounting (ABA) procedures including standard Sobek, modified Sobek, modified ABA, Net Acid Generation (NAG), siderite corrected NP, and BC Research Initial Test methods. Analyses commonly include paste pH, fizz rating, total sulphur, sulphate sulphur, sulphide sulphur and neutralisation potential (NP). We also calculates and provides maximum potential acidity (MPA), carbonate NP (NNP) and net NP.
Static Water Leaching Procedures
Short-term water extraction (18 to 24h) procedures are routinely conducted to determine the presence of readily leachable contaminants. Methods we offer include the MEND SFE, SPLP, TCLP and Meteoric Water Mobility Procedure (MWMP). Extract analysis commonly includes pH and dissolved metals by ICP-ES or ICP-MS. Other possible analytes include alkalinity, acidity, sulphate, TDS, bicarbonate, Cl, F, nitrate-N, nitrite-N, ammonia-N, TKN, total P, ortho-phosphate, CN species and other anions.