Caltest Lab

Caltest Inorganic Methods

Wet Chemistry (not all capabilities listed):

  • Cyanide (Total or WAD) by SM4500-CN E/I, Reporting Limit 3 ug/L (1 ug/L Low Level RL avail upon request)
  • Phenols (Total) by EPA 420.4, Reporting Limit 5 ug/L
  • Oil and Grease by EPA 1664, Reporting Limit 5 mg/L (Total and/or Hydrocarbons)
  • Hexavalent Chromium (CrVI) by SM3500-CR D (18th edition), Reporting Limit from 2-10 ug/L
  • Anions by IC (Cl, F, SO4, NO3) by EPA 300.0
  • Alkalinity (Total, Bicarbonate, Carbonate and Hydroxide) by SM2320B
  • Ammonia (as Nitrogen) by EPA 350.2/SM4500-NH3 C
  • Biochemical Oxygen Demand (BOD) by EPA 405.1/SM5210B
  • Chemical Oxygen Demand (COD) by EPA 410.4
  • MBAS (Foaming Agents/Surfactants) by EPA 425.1/SM5540C
  • Nitrite as Nitrogen by EPA 354.1/SM4500-NO2 B
  • Nitrate + Nitrite as Nitrogen by EPA 353.2
  • Total Kjeldahl Nitrogen (TKN) by EPA 351.3/SM4500-NH3 C
  • Phosphorus (Total / Dissolved / Ortho) by EPA 365.2/SM4500-P E, Reporting Limit down to 0.01 mg/L
  • Total Solids (by percent) by EPA 160.3/SM2540B
  • Total Suspended Solids (TSS) by EPA 160.2/SM2540D
  • Total Dissolved Solids (TDS) by EPA 160.1/SM2540C
  • Total Settleable Solids by EPA 160.5/SM2540F
  • Total Volatile Solids/Volatile Suspended Solids by EPA 160.4
  • Sulfide (Total or Dissolved) by EPA 376.2/SM4500-S D
  • Total Organic Carbon (TOC) by EPA 415.1/SM5310B
  • Dissolved Organic Carbon (DOC) by EPA 415.1/SM5310B
  • Note: all dissolved analyses need 0.45 micron filtration prior to analysis.

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