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Table 5 • <br />ACZ, Inc./Bookcliffs Laboratory Division <br />Water Analysis Holding limes <br /> <br /> <br />Parameter <br /> <br />Container <br /> <br />Preservation Maximum <br />Storage <br />Regulatory* <br />Acidity Plastic/Glass Refrigeration 14 days <br />Alkalinity Plastic/Glass Refrigeration 14 days <br />BOD Plastic/Glass Refrigeration 48 hours <br />Boron Plastic None Required 28 days <br />Bromide Plastic/Glass None Required 28 days <br />COD <br />Coliforms Plastic/Glass <br />Plastic (sterile) Add H SO to pH 2 <br />Refrigeration 28 <br />24 days <br />hours <br />Chlorophyll Plastic/Glass 30 days in dark: 30 days <br /> freeze <br />Chromium VI Plastic/Glass Refrigeration 24 hours <br />Color Plastic/Glass Refrigeration 48 hours <br />Conductivity Plastic/Glass Refrigeration 28 days <br />Cyanide, Total Plastic/Glass Add NaOH to pH 12, 14 days <br /> Refrigeration <br />Fluoride Plastic/Glass None Required 28 days <br />Hardness Plastic/Glass Add HNO to pH 2 6 months <br />Meta]s, General Plastic/Glass Add HN03 to pH 2 6 months <br /> <br />Mercury <br />Plastic/Glass <br />Add HN03 to pH 2, <br />28 • <br />days <br /> Refrigeration <br />Nitrogen, Ammonia Plastic/Glass Add H SO to pH 2, <br />Refrigeration 28 days <br />Nitrogen, N0~/NO9 Plastic/Glass Refrigeration 28 days <br />Nitrogen, Ni~ritE Plastic/Glass Refrigeration 48 hours <br />Nitrogen, Total Plastic/G]ass Add H SO to pH 2, <br />Refrigeration 28 days <br />Oil and Grease Glass Add Hp50 to pH 2, <br />Refrigeration 28 days <br />Organic Carbon Glass Add H SO to pH 2, <br />Refrigeration 28 days <br />Phenols Glass Add H SO to pH 2, <br />Refrigeration 28 days <br />pH Plastic/Glass Analyze Immediately N/A <br />Phosphate Plastic/Glass Filter, 48 hours <br /> Refrigeration <br />Phosphate, Total Plastic/Glass H SO to pH 2, <br />R~fr~geration 28 days <br />Solids, Dissolved Plastic/Glass Refrigeration 7 days <br />Solids, Suspended Plastic/Glass Refrigeration 7 days <br />Solids, Settleable Plastic/Glass Refrigeration 48 hours <br />Silica Plastic Refrigeration 28 days <br />Sulfate Plastic/Glass Refrigeration 28 days <br />Sulfide Plastic/Glass NaOH to pH 9, 7 days <br /> Zinc Acetate <br />• <br />Turbidity Plastic/Glass Refrigeration (dark) 48 hours <br />*Environmental Protection Agency, Proposed Rules, Federal ke gister, <br />Vol. 49, No. 209, Oct. 26, 1984. <br />14 <br />