Advanced Technology Laboratories

3275 Walnut Avenue
Signal Hill, CA 90755
1.800.499.4388

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Preservation, Holding Times, Containers for Samples

Inorganics

Parameter	Solid Waste Method	Wastewater Method	Sample Volume & Container Type	Holding Time	Preservation
Acidity		305.1, 2310B	100 mL, Plastic or Glass	14 days	Cool, 4 °C
Alkalinity		310.1, 2320B	100 mL, Plastic or Glass	14 days	Cool, 4 °C
Ammonia		350.2	500 mL, Plastic or Glass	28 days	Cool, 4 °C, H2SO4 to pH < 2
Biochemical Oxygen Demand		405.1, 5210B	1 L, Plastic or Glass	48 hours	Cool, 4 °C
cBOD		405.1, 5210B	1 L	48 hours	Cool, 4 °C
Chemical Oxygen Demand		410.4	100 mL, Plastic or Glass	28 days	Cool, 4 °C, H2SO4 to pH < 2
Chloride	9056	325.3, 300.0	50 mL, Plastic or Glass	28 days	None required
Chlorine, Total Residual		330.3	500 mL, Plastic or Glass	Analyze immediately	None
Color		110.2	100 mL, Plastic or Glass	48 hours	Cool, 4 °C
Cyanide, Total and Amenable	9014/ 9010B	335.2, 335.1	500 mL, Plastic or Glass	14 days	Cool, 4 °C; if oxidizing agents present add 0.6 g of ascorbic acid per L; adjust pH > 12 with 10N NaOH.
Flashpoint	1010		200 mL	NA (soil); 7 days (water)	None
Fluoride		340.2, 300.0	300 mL, Plastic	28 days	None
Hardness		2340B	100 mL, Plastic or Glass	6 months	HNO3 , pH < 2
Nitrate	9056	300.0, 353.3	100 mL, Plastic or Glass	48 Hours	Cool, 4 °C
Nitrate-Nitrite		353.3	100 mL, Plastic or Glass	28 days	Cool, 4 °C, H2SO4 to pH < 2
Nitrite	9056	300.0; 354.1	50 mL, Plastic or Glass	48 hours	Cool, 4 °C
Oil and Grease		413.2	20 g / 1 L, Glass	28 days	Cool, 4 °C, H2SO4 to pH < 2
Oil and Grease - HEM		1664	1 L, Glass	28 days	Cool, 4 °C, H2SO4 to pH < 2
Oxygen, Dissolved		360.1	300 mL, Glass or BOD bottle	Analyze immediately	None
Oxygen, Dissolved		360.2	300 mL, Glass or BOD bottle	8 hours	None
pH	9040B, 9045C	150.1	20 g / 25 mL, Plastic or Glass	Analyze immediately	None required
Phenolics		420.1	500 mL	28 days	Cool, 4 °C, H2SO4 to pH < 2
Phosphate,Ortho		300.0; 365.3; 365.2	50 mL, Glass	48 hours	Cool, 4 °C
Phosphorus, Total		365.3; 365.2	50 mL	28 days	Cool, 4 °C, H2SO4 to pH < 2
Residue, Total		160.3	200 mL	7 days	Cool, 4 °C
Residue, Filterable		160.1	200 mL	7 days	Cool, 4 °C
Residue, Non-Filterable		160.2	200 mL	7 days	Cool, 4 °C
Residue, Settleable		160.5	1 L	48 hours	Cool, 4 °C
Residue, Volatile		160.4	200 mL	7 days	Cool, 4 °C
Specific Conductance		120.1	100 mL, Plastic or Glass	48 hours	Cool, 4 °C
Sulfate	9056	300.0, 375.4	50 mL, Plastic or Glass	28 days	Cool, 4 °C
Sulfide, Dissolved		376.2	125 mL, Plastic	Analyze immediately	NaOH + AlCl3, flocculate + settle. Transfer liquid, preserve w/ zinc acetate, pH > 9. Cool, 4 °C
Sulfide, Total		376.1, 376.2	500 mL, Plastic or Glass	7 days	Cool, 4 °C, add zinc acetate, pH > 9
Surfactants (MBAS)		425.1	250 mL	48 hours	Cool, 4 °C
Total Organic Carbon (TOC)	9060	415.1	40 ml	28 days	Cool, 4 °C, H2SO4 to pH < 2
Total Organic Halides (TOX)	9020B	450.1	500 ml, Amber glass	14 days	Cool, 4 °C, H2SO4 to pH < 2
TRPH		1664	20 g / 1 L	28 days	Cool, 4 °C, H2SO4 to pH < 2
Turbidity		180.1	100 mL, Plastic or Glass	48 Hours	Cool, 4 °C

REFERENCES

EPA 100-400 Series - Methods for the Determination of Inorganic Substances in Environmental Samples, EPA/600/R-93-100, August 1993.

EPA 200 Series - Methods for the Determination of Metals in Environmental Samples. Supplement I, EPA/600/4-91-111, May 1994.

EPA 500 Series - Methods for the Determination of Organic Compounds in Drinking Water, Supplement III, EPA/600/R-95/131, August 1994.

EPA 600 Series - Methods for the Determination of Nonconventional Pesticides in Municipal and Industrial Wastewater - Volume I - EPA-821-R-93-010 August 1993, Revision 1.

Test Methods for Evaluating Solid Waste Physical/Chemical Methods (SW-846) - Third Edition, September 1986; Final Update I, July 1992; Final Update IIA, August 1993; Final Update II, September 1994; Final Update IIB, January 1995; Final Update III, December 1996; Final Update IIIA, April 1998; Final Update IIIB, November 11, 2004.

Wagner, Robert E. - Guide to Environmental Analyrical Methods, 4th Edition, Genium Publishing Corporation, 1998.

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