title: Uncertainty of analytical determinations.
abstract: Two examples of uncertainty calculation are described for determination of nitrates in solution (APHA method 4500B) and total suspended solids in water (APHA method 2540D).
authors: quantum@sltnet.lk
authors: Galappatti M S
authors: GM
authors: de Silva
mesh_terms: D008433:Mathematics; D009566:Nitrates / Q000032:analysis; D012996:Solutions; D013053:Spectrophotometry / Q000379:methods / Q000592:standards / Q000706:statistics & numerical data*; D035501:Uncertainty
chemical_list: D009566:Nitrates; D012996:Solutions