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Chemical Analysis
Table 8 Required Containers, Preservation Techniques and Holding Times
Parameter No./Name
27. Hardness
28. Hydrogen ion (pH)
31, 43. Kjeldahl and organic nitrogen
8
Metals
18. Chromium VI
35. Mercury
Metals, except boron, chromium VI and
mercury
[3, 5–8, 12, 13, 19, 20, 22, 26, 29, 30,
32–34, 36, 37, 45, 47, 51, 52, 58-60, 62,
9
63, 70-72, 74, 75]
.
38. Nitrate
39. Nitrate-nitrite
40. Nitrite
41. Oil and grease
42. Organic Carbon
44. Orthophosphate
46. Oxygen, dissolved probe
47. Winkler
48. Phenols
49. Phosphorus, elemental
50. Phosphorus, total
53. Residue, Total
54. Residue, Filterable
55. Residue, Nonfilterable (TSS)
56. Residue, Settleable
57. Residue, Volatile
61. Silica
64. Specific Conductance
65. Sulfate
66. Sulfide
67. Sulfite
68. Surfactants
69. Temperature
73. Turbidity
1
This table was taken from Table II published in the Federal Register, July 1, 1995, 40 CFR, Part 136.3, pages 643–645. Most organic
tests are not included.
Chemical Analysis
Page 30
2
Container
P, G
HNO
to pH<2, H
3
P, G
P, G
Cool 4 °C, H
P, G
P, G
HNO
P, G
P, G
P, G
Cool 4 °C, H
P, G
Cool, 4 °C, HCl or H
G
Cool, 4 °C, HCl or H
P, G
P, G
Filter immediately; Cool, 4 °C
G Bottle and top
G Bottle and top
Fix on site and store in dark
G only
Cool 4 °C, H
G
P, G
Cool, 4 °C, H
P, G
P, G
P, G
P, G
P, G
P, PFTE or quartz
P, G
P, G
Cool 4 °C, add zinc acetate plus
P, G
sodium hydroxide to pH>9
P, G
P, G
P, G
P, G
1
(continued)
3,4
Preservation
SO
to pH<2
2
4
None required
SO
to pH<2
2
4
Cool, 4 °C
to pH<2, Cool 4 °C
3
HNO
to pH<2
3
Cool, 4 °C
SO
to pH<2
2
4
Cool, 4 °C
SO
to
2
4
pH<2
SO4 or
2
H
PO
to pH<2
3
4
None required
SO
to pH<2
2
4
Cool, 4 °C
SO
to pH<2
2
4
Cool, 4 °C
Cool, 4 °C
Cool, 4 °C
Cool, 4 °C
Cool, 4 °C
Cool, 4 °C
Cool, 4 °C
Cool, 4 °C
none required
Cool, 4 °C
None required
Cool, 4 °C
Maximum Holding
5
Time
6 months
Analyze immediately
28 days
24 hours
28 days
6 months
48 hours
28 days
48 hours
28 days
28 days
48 hours
Analyze immediately
8 hours
28 days
48 hours
28 days
7 days
7 days
7 days
48 hours
7 days
28 days
28 days
28 days
7 days
Analyze immediately
48 hours
Analyze immediately
48 hours
5940022ChemAnal.fm
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