| Parameter | Holding Time, days | Container | MInimum Amount, L | Preservation | Method |
|---|---|---|---|---|---|
| Fixed Gases | 3 / 30 | Tedlar Bag / Summa Canister | 1 | Keep out of sunlight | ASTM D1946 |
| Hydrocarbon Speciation | 3 / 30 | Tedlar Bag / Summa Canister | 1 | Keep out of sunlight | ASTM D2820 |
| Hydrogen Sulfide (H2S) | 24 hrs | Tedlar Bag / Silica Canister | 1 | Keep out of sunlight | GC/FPD |
| Landfill Gases (NMOCs) | 3 / 30 | Tedlar Bag / Summa Canister | Schmal | Keep out of sunlight | SCAQMD 25.1(M) |
| TPH(g) | 3 / 30 | Tedlar Bag / Summa Canister | Schmal | Keep out of sunlight | TO-3(M) |
| VOCs | 3 / 30 | Tedlar Bag / Summa Canister | Schmal | Keep out of sunlight | EPA TO-14A/TO-15 |