Test | Holding Time | Containers | Notes |
MISA | MISA |
INORGANICS IN WATERS | Chemical Oxygen Demand (COD)
| 4 days (unpreserved); 30 days (preserved)
| Glass, plastic; Teflon, PP, HD/LD PE, PS, PET
| H2SO4 preserving solution;
|
Biochemical Oxygen Demand (BOD)
| 4 days
| Glass, plastic; Teflon, PP, HD/LD PE, PS, PET
| Protect from light; no field preservation to be used;
|
c-BOD
| 4 days
| Glass, plastic; Teflon, PP, HD/LD PE, PS, PET
| Protect from light; no field preservation to be used;
|
Total Cyanide
| 14 days
| Glass, plastic; Teflon, PP, HD/LD PE, PS, PET
| NaOH preserving solution;
|
WAD Cyanide
| 7 days
| Glass, plastic; Teflon, PP, HD/LD PE, PS, PET
| NaOH preserving solution;
|
Cyanate
| 7 days
| Glass, plastic; Teflon, PP, HD/LD PE, PS, PET
| NaOH to be used whether analysis by IC or colorimetry;
|
Thiocyanate
| 7 days
| Glass, plastic; Teflon, PP, HD/LD PE, PS, PET
| If both cyanate & thiocyanate to be analyzed -> preserve as if for cyanate
|
pH
| 4 days
| Glass, plastic; Teflon, PP, HD/LD PE, PS, PET
| No field preservation required;
|
NH3+ NH4
| 3 days (unpreserved); 14 days (preserved)
| Glass, plastic; Teflon, PP, HD/LD PE, PS, PET
| H2SO4 preserving solution;
|
TKN
| 3 days (unpreserved); 14 days (preserved)
| Glass, plastic; Teflon, PP, HD/LD PE, PS, PET
| H2SO4 preserving solution;
|
NO3+NO2
| 5 days
| Glass, plastic; Teflon, PP, HD/LD PE, PS, PET
| No field preservation required;
|
Dissolved Organic Carbon (DOC)
| 3 days (unpreserved); 10 days (preserved)
| Glass, plastic; Teflon, PP, HD/LD PE, PS, PET
| Protect from light; filtration + H2SO4 recommended
|
TOC
| 3 days (unpreserved); 10 days (preserved)
| Glass, plastic; Teflon, PP, HD/LD PE, PS, PET
| H2SO4 preserving solution;
|
Total P
| 14 days (unpreserved); 30 days (preserved)
| Glass, plastic; Teflon, PP, HD/LD PE, PS, PET
| H2SO4 preserving solution;
|
Orthophosphate
| 7 days
| Glass, plastic; Teflon, PP, HD/LD PE, PS, PET
| No field preservation required;
|
Specific Conductance
| 4 days
| Glass, plastic; Teflon, PP, HD/LD PE, PS, PET
| No field preservation required;
|
TSS
| 7 days
| Glass, plastic; Teflon, PP, HD/LD PE, PS, PET
| No field preservation required;
|
Volatile SS
| 7 days
| Glass, plastic; Teflon, PP, HD/LD PE, PS, PET
| No field preservation required;
|
TDS
| 7 days
| Glass, plastic; Teflon, PP, HD/LD PE, PS, PET
| No field preservation required;
|
TS
| 7 days
| Glass, plastic; Teflon, PP, HD/LD PE, PS, PET
| No field preservation required;
|
Metals (inc. hydrides)
| 30 days
| Plastic; Teflon, PP, HD/LD PE, PS, glass
| No filtration (total metals); HNO3 preserving solution;
|
Hexavalent Chromium (Cr6+)
| 5 days (unpreserved); 28 days (preserved)
| Glass with plastic lined cap; Teflon with plastic lined cap
| Buffer solutio to pH of 9.3-9.7 for field preservation
|
Mercury
| 28 days (recommended method); 14 days (alternate method)
| Teflon with plastic lined cap; Glass with plastic lined cap
| HCl (pH <2) recommended method; HNO3 (pH<2) + colour reagent for alternate method
|
Total Alkyl Lead
| 4 days
| Glass (amber) with plastic lined cap; Teflon
| No field preservation required;
|
Phenolics (4AAP)
| 30 days
| Glass with phenolic free cap; Teflon with phenolic free cap
| H2SO4 for recommended method;
|
Sulphide
| 7 days
| Glass or Plastic; Teflon, PP, H/LD PE, PS, PET
| Zinc acetate + NaOH; Zinc acetate + NaCO3
|
| Chloride
| 30 days
| Glass or Plastic; Teflon, PP, H/LD PE, PS, PET
| No field preservation required;
|
| Sulphate
| 30 days
| Glass or Plastic; Teflon, PP, H/LD PE, PS, PET
| No field preservation required;
|
| Fluoride
| 30 days
| Glass or Plastic; Teflon, PP, H/LD PE, PS, PET
| No field preservation required;
|
| Bromide
| 28 days
| Plastic; Teflon, PP, HD/LD PE, PS, PET
| No field preservation required;
|
| Total residual chlorine
| <1 hr
| Amber glass with ground-glass stopper
| Protect from light
|
| NDMA
| 14 days
| Amber glass with Teflon lined lid; Teflon with Teflon lined lid
| No field preservation required;
|
| Alkalinity
| 14 days
| Glass or Plastic; Teflon, PP, H/LD PE, PS
| No field preservation required;
|
| Colour
| 14 days
| Glass or Plastic; Teflon, PP, H/LD PE, PS, PET
| No field preservation required;
|
| Hardness
| 30 days (if preserved)
| Glass or Plastic; Teflon, PP, H/LD PE, PS, PET
| HNO3 preservation required;
|
| Turbidity
| 2 days
| Glass or Plastic; Teflon, PP, H/LD PE, PS, PET
| No field preservation required;
|
ORGANICS IN WATERS | Volatiles (Halogenated and non-Halogenated)
| 7 days (unpreserved); 14 days (preserved)
| Glass with Teflon lined septum lid; glass with foil lined cap (0 Headspace)
| If chlorinated, Na2S2O3; Bisulphate for alternate
|
Extractables, Base Neutral
| 30 days
| Amber glass with Teflon lined lid; Teflon with Teflon lined lid
| No field preservation required;
|
Extractables, Acid (Phenolics)
| 30 days
| Amber glass with Teflon lined lid; Teflon with Teflon lined lid
| No field preservation required;
|
Phenoxyacid Herbicides
| 30 days
| Amber glass with Teflon lined lid; Teflon with Teflon lined lid
| No field preservation required;
|
Organochlorine Pesticides
| 30 days
| Amber glass with Teflon lined lid; Teflon with Teflon lined lid
| No field preservation required;
|
Chlorinated SVOCs
| 30 days
| Amber glass with Teflon lined lid; Teflon with Teflon lined lid
| No field preservation required;
|
Dioxins & Furans
| 30 days
| Amber glass with Teflon lined cap; clear glass with teflon lined lid
| No field preservation required;
|
Solvent extractables
| 7 days (unpreserved); 30 days (preserved)
| Amber glass with Teflon lined cap;
| HCl (pH <2);
|
Fatty and Resin Acids
| 7 days
| Amber glass with Teflon lined lid; Teflon with Teflon lined lid
| No field preservation required;
|
Total PCBs
| 30 days
| Amber glass with Teflon lined lid; Teflon with Teflon lined lid
| No field preservation required;
|
Microbiology | E. coli
| 2 hours (unpreserved); 48 hours (preserved)
| Sterile plastic or glass
| Na2S2O3 field preservation
|
Total Coliforms
| 2 hours (unpreserved); 48 hours (preserved)
| Sterile plastic or glass
| Na2S2O3 field preservation
|
Fecal Streptococci
| 2 hours (unpreserved); 48 hours (preserved)
| Sterile plastic or glass
| Na2S2O3 field preservation
|
Pseudomonas aeruginosa
| 2 hours (unpreserved); 48 hours (preserved)
| Sterile plastic or glass
| Na2S2O3 field preservation
|
Legend:
|
|
|
HDPE - high density polyethylene
|
|
|
PET - polyethylene terephthalate
|
|
|
PP - polypropylene
|
|
|
H/LD PE - high / low density polyethylene
|
|
|
