Analysis | Container | Preservative | Holding Time (Days unless stated otherwise) |
---|---|---|---|
pH | any | NONE | 15 minutes |
Ammonia, Nitrogen | 250 ml Plastic | 1 ml H2SO4ÿ/ liter | 28 |
Acute Bioassays | cubitainers | NONE | 36 hours |
Chronic Bioassays | cubitainers | NONE | 72 hours |
5-Day BOD + TSS | 1 liter Plastic | NONE | 48 hours |
Chloride | 500 ml Plastic | NONE | 28 |
Chloropyll A | 2 liter amber glass | NONE | 48 hours |
COD | 250 ml Plastic | 1 ml H2SO4ÿ/ liter | 28 |
Conductivity | 500 ml Plastic | NONE | 14 |
Cyanide, Total | 250 ml Plastic | 1 pellet NaOH | 14 |
Fecal Coliform | 250 ml Plastic | 4 ml 10% Na2SO3O3 | 6 hours |
Fluoride | 500 ml Plastic | NONE | 28 |
Hardness | 500 ml Plastic | 1 ml HNO3ÿ/ liter | 6 months |
MBAS | 500 ml Plastic | NONE | 48 hours |
Metals | 500 ml Plastic | 1 ml HNO3ÿ/ liter | 6 months |
Nitrate/Nitrite | 250 ml Plastic | 0.5 ml H2SO4ÿ/ liter | 48 hours |
Oil & Grease | 1 liter wide-mouth glass | 5 ml 1:1 HCI | 28 |
Phenols | 1 liter glass | 1 ml H2SO4ÿ/ liter + 3 scoops Copper sulfate | 28 |
Settleable Solids | 1 gallon Plastic | None | 48 hours |
Sulfate | 500 ml Plastic | NONE | 28 |
Sulfide | 1 liter Glass | 3 pellets NaOH + 1 ml 2N Zinc acetate | 7 |
Total Dissolved Solids | 500 ml Plastic | NONE | 7 |
Total Kjeldahl Nitrogen | 250 ml Plastic | 0.5 ml H2SO4 | 28 |
Total Phosphorous | 500 ml Plastic | 1 ml HNO3 | 6 months |
Total Solids | 250 ml Plastic | NONE | 7 |
Total Suspended Solids w/o BOD | 500 ml Plastic | NONE | 7 |
Turbidity | 500 ml Plastic | NONE | 48 hours |
Volatile Solids | 500 ml Plastic | NONE | 7 |