Parameter/Method of Analysis

Color

Visual Comparison Method (Platinum Cobalt Scale

Temperature

Use of Mercury-filled Thermometer

pH

Glass Electrode Method

BOD5

Azide Modification (Dilution Technique)

Dissolved Oxygen

Azide Modification (Wrinkler Method) of Membrane Electrode (DO Meter)

Settlelable Solids

Imhoff cone

Total Suspended Solids (TSS)

Gravimetric Method

Surfactants

Methylene Blue method (Colorimetric)

Oil and Grease

Gravimetric Method (Petroleum Ether Extraction)

Phenolic Substances

Chloroform Extraction Method

Total Coliforms

Multiple tube fermentation Technique or Membrane Filter

Fecal Coliforms

Multiple tube fermentation Technique or Membrane Filter

Arsenic

Silver Diethyldithiocarbonate Method (Colorimetric)

Cadmium

Atomic Absorption Spectrometry (Wet ashing w/ concentration HNO3+HCL

Chromium

Diphenyl Carbazide Colorimetric Method

Cyanide

Specific Electrode

Lead

Atomic Absorption Spectrometry

Mercury Total

Cold Vapor Technique (Mercury Analyzer, AAS)

PCB

Gas Chromatography (ECD)

Boron

Carmine Method

Chlorinated Hydrocarbons

Gas Chromatography

Organo Phosphorus Compounds

Gas Chromatography (FPD)

Nitrate as Nitrogen

Brucine Method for Saline Waters Specific Ion Electrode Method for Fresh Water

Phosphate as Phosporus

Stannouse Chloride Method