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CHEMICAL ANALYSIS INFORMATION
, continued
48. Phenols G only Cool 4°C, H
2
SO
4
to pH<2 28 days
49. Phosphorus, elemental G Cool, 4°C 48 hours
50. Phosphorus, total P, G Cool, 4°C, H
2
SO
4
to pH<2 28 days
53. Residue, total P, G Cool, 4°C 7 days
54. Residue, filterable P, G Cool, 4°C 7 days
55. Residue, Nonfilterable (TSS) P, G Cool, 4°C 7 days
56. Residue, Settleable P, G Cool, 4°C 48 hours
57. Residue, volatile P, G Cool, 4°C 7 days
61. Silica P, PFTE or
quartz
Cool, 4°C 28 days
64. Specific conductance P, G Cool, 4°C 28 days
65. Sulfate P, G Cool, 4°C 28 days
66. Sulfide P, G Cool 4°C, add zinc acetate plus
sodium hydroxide to pH>9
7 days
67. Sulfite P, G none required Analyze immediately
68. Surfactants P, G Cool, 4°C 48 hours
69. Temperature P, G None required Analyze immediately
73. Turbidity P, G Cool, 4°C 48 hours
1
This table was taken from Table II published in the Federal Register, July 1, 1995, 40 CFR, Part 136.3, pages 643-645. Organic
tests are not included.
2
Polyethylene (P) or glass (G).
3
Sample preservation should be performed immediately upon sample collection. For composite chemical samples each aliquot
should be preserved at the time of collection. When use of an automated sampler makes it impossible to preserve each aliquot,
then chemical samples may be preserved by maintaining at 4°C until compositing and sample splitting is completed.
4
When any sample is to be shipped by common carrier or sent through United States Mails, it must comply with the Department of
Transportation Hazardous Material Regulations (49 CFR Part 172). The person offering such material for transportation is responsible
for ensuring such compliance. For the preservation requirements of Table II, the Office of Hazardous Materials, Materials
Transportation Bureau, Department of Transportation has determined that the Hazardous Materials Regulations do not apply to the
following materials: Hydrochloric acid (HCl) in water solutions at concentrations of 0.04% by weight or less (pH about 1.96 or
greater); Nitric acid (HNO
3
) in water solutions at concentrations of 0.15% by weight or less (pH about 1.62 or greater); Sulfuric acid
(H
2
SO
4
) in water solutions at concentrations of 0.35% by weight or less (pH about 1.15 or greater); and Sodium hydroxide (NaOH) in
water solutions at concentrations of 0.080% by weight or less (pH about 12.30 or less).
5
Samples should be analyzed as soon as possible after collection. The times listed are the maximum times that samples may be
held before analysis and still be considered valid. Samples may be held for longer periods only if the permitee, or monitoring
laboratory, has data on file to show that the specific types of samples under study are stable for the longer time, and has
received a variance from the Regional Administer under §136.3(e). Some samples may not be stable for the maximum time
period given in the table. A permitee, or monitoring laboratory, is obligated to hold the sample for a shorter time if knowledge
exists to show that this is necessary to maintain sample stability. See §136.3(e) for details. The term “analyze immediately”
usually means within 15 minutes or less after sample collection.
6
Should only be used in the presence of residual chlorine.
7
Maximum holding time is 24 hours when sulfide is present. Optionally all samples may be tested with lead acetate paper before
pH adjustments in order to determine if sulfide is present. If sulfide is present, it can be removed by the addition of cadmium
nitrate powder until a negative spot test is obtained. The sample is filtered and then NaOH is added to pH 12.
8
Samples should be filtered immediately on-site before adding preservative for dissolved metals.
9
Numbers refer to parameter numbers in 40 CFR Part 136.3, Table 1B.
Table 4 Required Containers, Preservation Techniques and Holding Times
1
(continued)
Parameter No./Name Container
2
Preservation
3,4
Maximum Holding Time
5