Sample Containers, Preservations, and Hold Times
Analysis | Matrix | Container Type | Minimum Sample Volume | Preservation | Maximum Holding Time |
---|---|---|---|---|---|
Alkalinity |
Water | Plastic | 250 mL | Ice, < 6°C | 14 days |
Ammonia Nitrogen | Water | Plastic | 250 mL | H2SO4, pH < 2 Ice, < 6oC |
28 days |
Biological Oxygen Demand, 5-day | Water | Plastic | 1000 mL | Ice, < 6°C | 48 hours |
Carbonaceous Biological Oxygen Demand, 5-day | Water | Plastic | 1000 mL | Ice, < 6°C | 48 hours |
Chemical Oxygen Demand | Water | Plastic | 250 mL | H2SO4, pH < 2 Ice, < 6°C |
28 days |
Chloride |
Water | Plastic | 250 mL | Ice, < 6°C | 28 days |
Conductivity |
Water | Plastic | 250 mL | Ice, < 6°C | 28 days |
Dissolved Oxygen |
Water | Plastic | 250 mL | None | Immediately |
Fecal Coliform by Membrane Filtration |
Water | Sterile Plastic | 250 mL | Ice, < 6°C | 6 hours |
Fecal Coliform by Multiple Tube Fermentation | Water | Sterile Plastic | 250 mL | Ice, <6°C | 6 hours |
Solid | Sterile Plastic | 200 g | Ice, < 6°C | 30 hours | |
Hardness, Total | Water | Plastic | 250 mL | HNO3, pH < 2 Ice, < 6°C |
14 days |
Paint Filter Liquids |
Water | Plastic | 1000 mL | Ice, < 6°C | 48 hours |
pH, Liquid | Water | Plastic | 100 mL | None | Immediately |
pH, Solid | Solid | Plastic | 25 g | None | Immediately |
Salinity | Water | Plastic | 100 mL | Ice, < 6°C | 28 days |
Solids, Total Suspended | Water | Plastic | 500 mL | Ice, < 6°C | 7 days |
Solids, Total Dissolved | Water | Plastic | 250 mL | Ice, < 6°C | 7 days |
Solids, Total Volatile Suspended | Water | Plastic | 250 mL | Ice, < 6°C | 7 days |
Solids, Settleable | Water | Plastic | 1000 mL | Ice, < 6°C | 48 hours |
Solids, Percent and Percent Moisture | Solid | Plastic | 25 g | Ice, < 6°C | 7 days |
Sulfate, Total | Water | Plastic | 250 mL | Ice, < 6°C | 28 days |
Temperature | Water | Not Applicable | Not Applicable | None | Immediately |
Total Residual Chlorine | Water | Plastic | 100 mL | Ice, < 6°C | Immediately |
Total Coliform by Multiple Tube Fermentation | Water | Sterile Plastic | 250 mL | Ice, < 6°C | 6 hours |
Turbidity | Water | Plastic | 250 mL | Ice, < 6°C | 48 hours |