Sample Requirements
Listed below are the sampling requirements for some of our regular tests. For more information, see our test list page.
Ammonia
Collect 500 ml or 10 g of sample in glass or plastic. Preserve with sulfuric acid.
Cation Exchange Capacity
Collect 100 g of sample in glass or plastic. No preservative required.
Carbon Oxygen Demand (COD)
Collect 50 ml or 2 g of sample in glass or plastic. Preserve with sulfuric acid.
Chloride
Collect 100 ml or 10 g of sample in glass or plastic. No preservative required.
Cyanide
Collect 500 ml or 10 g of sample in glass or plastic. Preserve with sodium hydroxide.
Dissolved Metals
Collect 250 ml of sample in glass or plastic. No preservative required.
Fluoride
Collect 50 ml or 10 g of sample in plastic. No preservative required.
Hardness
Collect 100 ml or 10 g of sample in plastic. Preserve with nitric acid.
Hexavalent Chromium
Collect 100 ml of sample in plastic. No preservative required.
Kjeldahl Nitrogen TKN
Collect 500 ml of sample in glass or plastic. Preserve with sulfuric acid.
Metals
Collect 250 ml or 10 g of sample in plastic. Preserve with nitric acid.
Mercury
Collect 250 ml of sample in plastic. Preserve with nitric acid.
Nitrate
Collect 100 ml of sample in glass or plastic. No preservative required.
Nitrite
Collect 100 ml of sample in glass or plastic. No preservative required.
Polychlorinated Biphenyls (PCBs)
Collect 1 L of sample in glass. No preservative required.
Pesticides
Collect 1 L of sample in glass. No preservative required.
Petroleum Hydrocarbons TPH
Collect 1 L of sample in glass. Preserve with sulfuric acid.
Phenolics
Collect 500 ml of sample in glass. Preserve with sulfuric acid.
Total Phosphorus
Collect 100 ml of sample in plastic. Preserve with sulfuric acid.
Ortho-Phosphorus
Collect 100 ml of sample in glass or plastic. No preservative required.
PNAs/PAHs
Collect 1 L of sample in glass. No preservative required.
Semivolatiles
Collect 1 L of sample in glass. No preservative required.
Silica
Collect 100 ml of sample in plastic. No preservative required.
Sulfate
Collect 500 ml of sample in glass or plastic. No preservative required.
TCLP
Collect 200 g in glass. No preservative required.
TOC
Collect 20 ml or 5 g in glass or plastic. Preserve with sulfuric acid.
TOX
Collect 500 ml of sample in amber glass. Preserve with sulfuric acid.
Dissolved Solids
Collect 250 ml of sample in glass or plastic. No preservative required.
Suspended Solids
Collect 250 ml of sample in glass or plastic. No preservative required.
Volatiles
Collect 40 ml or 10 g of sample in glass (no air). Preserve with sodium thiosulfate.