TEST INSTRUCTIONS - Geotech Environmental Equipment
TEST INSTRUCTIONS - Geotech Environmental Equipment TEST INSTRUCTIONS - Geotech Environmental Equipment
PROCEDURE 1. Press and hold ON button until colorimeter turns on. 2. Press ENTER to start. 3. Press ENTER to select TESTING MENU. 4. Select ALL TESTS (or another sequence containing 69 Nitrite-TT) from TESTING MENU. 5. Scroll to and select 69 Nitrite-TT from menu. 6. Rinse a tube (0290) with sample water. Fill to 10 mL line with sample. 7. Insert the tube into chamber, close lid and select SCAN BLANK. 8. Remove the tube from colorimeter. 9. Add one *Nitrite Spectrophotometric Grade Tablet (3886). 10. Use Tablet Crusher (0175) to crush tablet. 11. Cap tube. 12. Shake vigorously for 20 seconds. 13. Wait 2 minutes. 14. Immediately, insert tube into chamber, close lid and select SCAN SAMPLE. Record result in ppm nitrite. 15. Press OFF button to turn the colorimeter off or press EXIT button to exit to a previous menu or make another menu selection. NOTE: For best possible results, a reagent blank should be determined to account for any contribution to the test result by the reagent system. To determine the reagent blank, follow the above test procedure to scan a distilled or deionized water blank. Then follow the above procedure to perform the test on a distilled or deionized water sample. This test result is the reagent blank. Subtract the reagent blank from all subsequent test results of unknown samples. To convert nitrite (NO 2 ) results to nitrite-nitrogen (NO 2 –N), divide results by 3.3. Nitrite-TesTab 2/2 Smart2 TEST PROCEDURES 1.07
NITRITE-NITROGEN–LOW RANGE DIAZOTIZATION METHOD CODE 3650-SC QUANTITY CONTENTS CODE 2 x 60 mL *Mixed Acid Reagent *V-6278-H 5 g *Color Developing Reagent *V-6281-C 1 Spoon, 0.1 g, plastic 0699 1 Dispenser Cap 0692 *WARNING: Reagents marked with an * are considered hazardous substances. To view or print a Material Safety Data Sheet (MSDS) for these reagents see MSDS CD or our web site. To obtain a printed copy, contact us by e-mail, phone or fax. Nitrite represents an intermediate state in the nitrogen cycle, usually resulting from the bacterial decomposition of compounds containing organic nitrogen. Under aerobic conditions bacteria oxidize ammonia to nitrites; and under anaerobic conditions, bacteria reduce nitrates to nitrites. Nitrites are often used as preservatives when added to certain foods. The nitrite concentration of drinking water rarely exceeds 0.1 ppm (mg/L). APPLICATION: This method is applicable for the determination of nitrite in drinking, surface and saline waters; domestic and industrial wastes. RANGE: 0.00–0.80 ppm Nitrite-Nitrogen METHOD: The compound formed by diazotization of sulfanilamide and nitrite is coupled with N–(1–naphthyl)–ethylenediamine to produce a reddish-purple color, which is read SAMPLE HANDLING & PRESERVATION: colorimetrically. Samples should be analyzed as soon as possible. They may be stored for 24 to 48 hours at 4°C. INTERFERENCES: There are few known interfering substances at concentration less than 1000 times the nitrite-nitrogen concentration; however, the presence of strong oxidants or reductants may readily affect nitrite concentrations. High alkalinity (above 600 mg/L) will give low results due to a shift in pH. Smart2 TEST PROCEDURES 2.04 Nitrite-Nitrogen–LR 1/2
- Page 89 and 90: PROCEDURE Use 10 mm square cell ada
- Page 91 and 92: CYANIDE PYRIDINE-BARBITURIC ACID ME
- Page 93 and 94: CYANURIC ACID MELAMINE METHOD-TURBI
- Page 95 and 96: CYANURIC ACID-UDV MELAMINE METHOD-T
- Page 97 and 98: DISSOLVED OXYGEN WINKLER COLORIMETR
- Page 99 and 100: PROCEDURE 1. Press and hold ON butt
- Page 101 and 102: FLUORIDE SPADNS METHOD CODE 3647-01
- Page 103 and 104: PROCEDURE 1. Press and hold ON butt
- Page 105 and 106: HYDRAZINE p-DIMETHYLAMINOBENZALDEHY
- Page 107 and 108: HYDROGEN PEROXIDE-LOW RANGE DPD MET
- Page 109 and 110: HYDROGEN PEROXIDE- HIGH RANGE DPD M
- Page 111 and 112: HYDROGEN PEROXIDE-SHOCK DPD Method
- Page 113 and 114: IRON I,I0-PHENANTHROLINE METHOD COD
- Page 115 and 116: IRON BIPYRIDYL METHOD CODE 3648-SC
- Page 117 and 118: IRON-UDV BIPYRIDYL METHOD-UNIT DOSE
- Page 119 and 120: PROCEDURE Use 10 mm square cell ada
- Page 121 and 122: LEAD PAR METHOD CODE 4031 QUANTITY
- Page 123 and 124: MANGANESE-LOW RANGE PAN METHOD CODE
- Page 125 and 126: MANGANESE-HIGH RANGE PERIODATE METH
- Page 127 and 128: MERCURY TMK METHOD CODE 4861 QUANT
- Page 129 and 130: MOLYBDENUM-HIGH RANGE THIOGLYCOLATE
- Page 131 and 132: NICKEL DIMETHYLGLYOXIME METHOD CODE
- Page 133 and 134: NITRATE ZINC REDUCTION CODE 3689-S
- Page 135 and 136: NITRATE-NITROGEN-LOW RANGE CADMIUM
- Page 137 and 138: PROCEDURE NOTE: Place Dispenser Ca
- Page 139: NITRITE DIAZOTIZATION CODE 3694-SC
- Page 143 and 144: NITROGEN, TOTAL CHROMOTROPIC ACID W
- Page 145 and 146: PROCEDURE Use COD adapter. 1. Prehe
- Page 147 and 148: OXYGEN SCAVENGERS DEHA (Diethylhydr
- Page 149 and 150: CARBOHYDRAZIDE PROCEDURE 1. Press a
- Page 151 and 152: HYDROQUINONE PROCEDURE 1. Press and
- Page 153 and 154: OZONE INDIGO METHOD CODE 365I-SC QU
- Page 155 and 156: PROCEDURE-HIGH RANGE A. PREPARATION
- Page 157 and 158: pH COLORIMETRIC METHOD CODE 3700-SC
- Page 159 and 160: PROCEDURE 1. Use Indicator, Range,
- Page 161 and 162: PHENOL AMINOANTIPYRINE METHOD CODE
- Page 163 and 164: PHOSPHATE-LOW RANGE ASCORBIC ACID R
- Page 165 and 166: PROCEDURE 1. Press and hold ON butt
- Page 167 and 168: PHOSPHATE-HIGH RANGE VANADOMOLYBDOP
- Page 169 and 170: PHOSPHORUS, TOTAL-LOW RANGE ASCORBI
- Page 171 and 172: PROCEDURE Use COD adapter. 1. Prehe
- Page 173 and 174: PHOSPHORUS, TOTAL-HIGH RANGE MOLYBD
- Page 175 and 176: PROCEDURE Use COD adapter. 1. Prehe
- Page 177 and 178: POTASSIUM TETRAPHENYLBORON METHOD C
- Page 179 and 180: SILICA-LOW RANGE HETEROPOLY BLUE ME
- Page 181 and 182: PROCEDURE 1. Press and hold ON butt
- Page 183 and 184: SILICA-HIGH RANGE SILICOMOLYBDATE M
- Page 185 and 186: SULFATE-HIGH RANGE BARIUM CHLORIDE
- Page 187 and 188: SULFIDE-LOW RANGE METHYLENE BLUE ME
- Page 189 and 190: SURFACTANTS ION PAIR EXTRACTION-BRO
PROCEDURE<br />
1. Press and hold ON button until colorimeter turns on.<br />
2. Press ENTER to start.<br />
3. Press ENTER to select <strong>TEST</strong>ING MENU.<br />
4. Select ALL <strong>TEST</strong>S (or another sequence containing 69 Nitrite-TT)<br />
from <strong>TEST</strong>ING MENU.<br />
5. Scroll to and select 69 Nitrite-TT from menu.<br />
6. Rinse a tube (0290) with sample water. Fill to 10 mL line with sample.<br />
7. Insert the tube into chamber, close lid and select SCAN BLANK.<br />
8. Remove the tube from colorimeter.<br />
9. Add one *Nitrite Spectrophotometric Grade Tablet (3886).<br />
10. Use Tablet Crusher (0175) to crush tablet.<br />
11. Cap tube.<br />
12. Shake vigorously for 20 seconds.<br />
13. Wait 2 minutes.<br />
14. Immediately, insert tube into chamber, close lid and select SCAN<br />
SAMPLE. Record result in ppm nitrite.<br />
15. Press OFF button to turn the colorimeter off or press EXIT button to exit<br />
to a previous menu or make another menu selection.<br />
NOTE: For best possible results, a reagent blank should be determined to<br />
account for any contribution to the test result by the reagent system. To<br />
determine the reagent blank, follow the above test procedure to scan a distilled<br />
or deionized water blank. Then follow the above procedure to perform the test<br />
on a distilled or deionized water sample. This test result is the reagent blank.<br />
Subtract the reagent blank from all subsequent test results of unknown samples.<br />
To convert nitrite (NO 2 ) results to nitrite-nitrogen (NO 2 –N), divide results by<br />
3.3.<br />
Nitrite-TesTab 2/2 Smart2 <strong>TEST</strong> PROCEDURES 1.07