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Table 15-4 <br /> Bookcliffs Commercial Laboratories <br /> Water Sample Bottle and Chemical Preservative Requirements <br /> Color Code Sample Type/Preservative Bottle Type Analysis <br /> No Color U Raw/No Chemical Preservatives Plastic Acidity, Alkalinity (total), BOD, Chlorine, <br /> EC, Odor, pH, Solids (dissolved, settleable, <br /> suspended total & volatile), Sulfite, <br /> Surfactants, Turbidity <br /> White W Filtered/No Chemical Preservatives Plastic Alkalinity (Bicarbonate, Carbonate, <br /> Hydroxide), Boron, Bromide, Chloride, <br /> Chromium +6, Color, Fluoride, Iodide, <br /> Nitrate/Nitrite, Phosphate (ortho), <br /> Silica, Sulfate <br /> Red R Raw/Acidified (HNO3) Plastic Total or Total Recoverable Metals <br /> c. Green G Filtered/Acidified (HNO3) Plastic Dissolved Metals <br /> Yellow Y Raw/Acidified (H2SO4) Plastic or Glass COD, Nitrogen (ammonia, organic & total), <br /> Phenols, Phosphorus (Organic, Total), TOC <br /> Yellow/Filtered Y/F Filtered/Acidified (H2SO4) Plastic or Glass DOC, Dissolved Nutrients <br /> Tan T Raw/Preserved (Zinc Acetate) Plastic Sulfide <br /> Orange 0 Raw/Acidified (H2SO4) Glass (1000ml) Oil and Grease <br /> Pink P Raw/Preserved (NaOH) Plastic Cyanides <br /> C <br /> m <br /> N' Sterile ST Raw/Preserved (Sodium Thiosulfate) Coliforms <br /> m <br /> a <br /> C:) Additional Information <br /> r <br /> - Cool all samples to 4°C. <br /> - Filtered sampled are to be filtered through 0.45 micron membrane filters except samples for DOC. Use 0.45 micron <br /> °D silver mes filters for DOC samples. <br /> - Phenols require a glass bottle. <br /> - Samples requiring coliforms (sterile bottle) or BOD (raw bottle) have a 24 hour holding time. <br />