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1—46

Phosphonates,

continued

Results may be expressed in terms of active phosphonic acid by multiplying the
result by the appropriate conversion factor in

Table 3

Active phosphonic acid (mg/L) = phosphate value x conversion factor.

Table 3

Phosphonate Type

Conversion Factor

Bayhibit AM PBTC

2.84

Dequest 2000, Wayplex NTP, ATMP

1.050

Dequest 2010, Wayplex HEDPA-60, HEDP

1.085

Dequest 2041, EDTMPA

1.148

Dequest 2051, HMDTMPA

1.295

Dequest 2060, DETPMPA

1.207

Содержание POCKET COLORIMETER II

Страница 2: ...1 2...

Страница 3: ...lay 1 11 Instrument Cap Cord 1 12 Phosphorus Reactive 1 15 Using Powder Pillows USEPA accepted for reporting 1 16 Using AccuVac Ampuls USEPA accepted for reporting 1 20 Sampling and Storage 1 24 Accur...

Страница 4: ...honates 1 39 Sampling and Storage 1 47 Accuracy Check 1 47 Standard Calibration Adjust Method 1 49 Interferences 1 49 Summary of Method 1 51 Reagents and Apparatus 1 52 Instrument Operation 2 3 Key Fu...

Страница 5: ...cedure Using Prepared Standards 2 17 Entering a Predetermined Calibration Curve 2 20 Editing a User entered or Factory Calibration Curve 2 22 Exiting the Calibration Routine 2 24 Deleting Calibration...

Страница 6: ...1 6...

Страница 7: ...ified in this manual Laboratory Safety As part of good laboratory practice please familiarize yourself with the reagents used in these procedures Read all product labels and the material safety data s...

Страница 8: ...ardous situation that may result in minor or moderate injury NOTE Information that requires special emphasis Precautionary Labels Please pay particular attention to labels and tags attached to the ins...

Страница 9: ...600 nm Absorbance range 0 2 5 Abs Dimensions 3 2 x 6 1 x 15 2 cm 1 25 x 2 4 x 6 inches Weight 0 2 kg 0 43 lbs Sample cells 25 mm 10 mL mark AccuVac Ampuls Operating conditions 0 to 50 C 0 to 90 relat...

Страница 10: ...productos qu micos GEFAHR Das Arbeiten mit chemischen Proben Standards und Reagenzien ist mit Gefahren verbunden Es wird dem Benutzer dieser Produkte empfohlen sich vor der Arbeit mit sicheren Verfahr...

Страница 11: ...d Display Item Description 1 POWER BACKLIGHT Key 2 ZERO SCROLL Key 3 MENU Key 4 Numeric Display 5 Range Indicator 6 Range Indicator 7 Menu Indicator 8 Calibration Adjusted Indicator 9 Battery Low Indi...

Страница 12: ...Use the instrument cap cord to secure the cap to the body of the colorimeter and prevent loss of the cap See Figure 1 on page 1 13 1 Loop the instrument cap cord through the ring on the cap 2 Remove...

Страница 13: ...1 13 Instrument Cap Cord continued Figure 1 Attaching the Instrument Cap Cord...

Страница 14: ...1 14...

Страница 15: ...esult obtained with the same lot of PhosVer 3 reagent The optional AccuVac Snapper simplifies testing by retaining the broken tip minimizing exposure to the sample and providing controlled conditions...

Страница 16: ...age 24 2 Add the contents of one PhosVer 3 Powder Pillow to the cell the prepared sample Immediately cap and shake 10 15 seconds Note Wipe off any liquid or finger prints 3 Wait at least 2 min but les...

Страница 17: ...ple the blank Wipe off any liquid or fingerprints 5 Press the POWER key to turn the meter on The arrow should indicate channel 1 Note See page 2 4 for information on selecting the correct channel 6 Pl...

Страница 18: ...ll show followed by 0 00 Remove the blank 8 Place the prepared sample into the cell holder with the diamond mark facing the keypad Cover the sample cell with the instrument cap 9 Press READ ENTER The...

Страница 19: ...Subtract the reagent blank from the reading for true concentration Note To convert results to other units use the conversion table Table 1 Table 1 To convert reading from To Multiply by mg L PO4 3 mg...

Страница 20: ...sample the blank Cap Collect at least 40 mL of sample in a 50 mL beaker 2 Fill a PhosVer 3 Phosphate AccuVac Ampul with sample Note Keep the tip of the ampule immersed until the ampule fills completel...

Страница 21: ...re completing steps 6 8 5 Press the POWER key to turn the meter on The arrow should indicate channel 1 Note See page 2 4 for information on selecting the correct channel 6 Place the blank into the cel...

Страница 22: ...ll turn on and the display will show followed by 0 00 Remove the blank 8 Place the ampule containing the prepared sample into the cell holder Cover the ampule with the instrument cap 9 Press READ ENTE...

Страница 23: ...ed 10 Subtract the reagent blank from the reading for true concentration Note To convert results to other units use conversion Table 2 Table 2 To convert reading from To Multiply by mg L PO4 3 mg L P2...

Страница 24: ...analyzed as soon as possible after collection If prompt analysis is impossible preserve samples up to 48 hours by storing at or below 4 C Warm to room temperature before testing Accuracy Check Standa...

Страница 25: ...r and drinking water concentrations without dilution are available to confirm test results See Optional Reagents on page 29 Standard Calibration Adjust Method To perform a standard calibration adjustm...

Страница 26: ...n present in concentrations exceeding those listed below Table 3 Aluminum Greater than 200 mg L Arsenate Interferes at any level Chromium Greater than 100 mg L Copper Greater than 10 mg L Hydrogen Sul...

Страница 27: ...unts or color May cause inconsistent results because the acid in the powder pillow may dissolve some of the suspended particles and because of variable desorption of orthophosphate from the particles...

Страница 28: ...complex giving an intense molybdenum blue color Reagents and Apparatus Required Reagents Description Unit Cat No PhosVer 3 Phosphate Reagent Powder Pillows 100 pkg 21060 69 OR PhosVer 3 Phosphate Reag...

Страница 29: ...50 pkg 14501 99 Phosphate Standard Solution 1 mg L as PO4 3 500 mL 2569 49 Phosphate Standard Solution 3 mg L as PO4 3 946 mL 20597 16 Optional Reagents continued Phosphate Standard Solution Voluette...

Страница 30: ...5 rolls pkg 391 33 sension 1 Basic Portable pH Meter with electrode each 51700 10 Pipet 2 mL serological each 532 36 Pipet TenSette 0 1 to 1 0 mL each 19700 01 Pipet Tips for 19700 01 50 pkg 21856 96...

Страница 31: ...accepted for reporting wastewater analysis Measuring Hints If the expected total phosphate concentration is greater than 3 mg L dilute the sample and apply the appropriate dilution factor to the resu...

Страница 32: ...e Rinse all glassware with 1 1 Hydrochloric Acid Solution Rinse again with deionized water 2 Add the contents of one Potassium Persulfate Powder Pillow Swirl to mix Note If only inorganic acid hydroly...

Страница 33: ...should be concentrated to less than 20 mL for best recovery After concentration maintain the volume near 20 mL by adding small amounts of deionized water Do not exceed 20 mL 5 Cool the sample to room...

Страница 34: ...de the organic phosphate plus the orthophosphate and the acid hydrolyzable condensed phosphate The organic phosphate concentration is determined by subtracting results of an acid hydrolyzable phosphor...

Страница 35: ...ollection for best results If prompt analysis is impossible preserve samples up to 48 hours by storing at or below 4 C Warm to room temperature before testing Interferences For turbid samples use 50 m...

Страница 36: ...etermined indirectly by subtracting the result of an acid hydrolyzable phosphorus test without potassium persulfate from the total phosphorus result with potassium persulfate This procedure must be fo...

Страница 37: ...99 Sodium Hydroxide Solution 5 0 N 100 mL MDB 2450 32 Sulfuric Acid Solution 5 25 N 100 mL MDB 2449 32 Required Apparatus Cylinder graduated 25 mL each 508 40 Flask Erlenmeyer 50 mL each 505 41 Option...

Страница 38: ...ted 50 mL each 508 41 Flask Erlenmeyer 125 mL each 505 43 Hot Plate 4 inch diameter 120 Vac each 12067 01 Hot Plate 4 inch diameter 240 Vac each 12067 02 Pad cooling 4 x 4 inches each 18376 00 pH Indi...

Страница 39: ...soft clean tissue between samples The digestion in step 6 is normally completed in less than 10 minutes However contaminated samples or a weak lamp can cause incomplete phosphate conversion Check conv...

Страница 40: ...Use a graduated cylinder or pipet to measure the sample 2 Pour the sample into a plastic 50 mL volumetric flask Dilute to the mark with deionized water Cap and invert to mix Table 1 Expected Concentra...

Страница 41: ...le to the shoulder with the diluted sample approximately 25 mL 4 Fill a sample cell with 10 mL of diluted sample the blank from the flask 5 Add the contents of one Potassium Persulfate for Phosphonate...

Страница 42: ...converted to orthophosphate during digestion Caution Wear UV safety goggles while the lamp is on 7 After digestion turn the power supply off and remove the lamp Caution Mixing bottle may be hot if lon...

Страница 43: ...e color will form if phosphate is present both sample and blank may develop color 10 Wait at least 2 minutes but no more than 10 minutes for full color development before completing steps 11 15 11 Pre...

Страница 44: ...pad Note Wipe off any liquid or finger prints Cover the sample cell with the instrument cap 13 Press ZERO SCROLL The meter will show followed by 0 0 Remove the blank 14 Place the prepared sample into...

Страница 45: ...D ENTER The meter will show followed by the results in mg L phosphate Multiply this value by the appropriate multiplier in Table 2 to obtain the true phosphate concentration Table 2 Sample Volume Mult...

Страница 46: ...ropriate conversion factor in Table 3 Active phosphonic acid mg L phosphate value x conversion factor Table 3 Phosphonate Type Conversion Factor Bayhibit AM PBTC 2 84 Dequest 2000 Wayplex NTP ATMP 1 0...

Страница 47: ...sis Best results are obtained when samples are analyzed as soon as possible after collection If prompt analysis is impossible preserve samples up to 48 hours by storing at or below 4 C Warm to room te...

Страница 48: ...hosphate concentration should increase 1 0 mg L for each 0 1 mL of standard added due to a dilution factor of 10 in the calibration Standard Solution Method 1 Fill a 10 mL sample cell to the 10 mL mar...

Страница 49: ...e Standard Calibration Adjust on page 2 13 Preparation of 2 mg L Phosphate Standard Solution 1 Using a volumetric class A pipet transfer 2 mL of a 100 mg L Phosphate Standard Solution to a 100 mL volu...

Страница 50: ...g L CDTA 100 mg L Chloride 5000 mg L Chromate 100 mg L Copper 100 mg L Cyanide 100 mg L Increase the UV digestion to 30 minutes Diethanoldithio carbamate 50 mg L EDTA 100 mg L Iron 200 mg L Nitrate 20...

Страница 51: ...using the PhosVer 3 method Phosphites and organophos phorus compounds React quantitatively Meta and polyphosphates do not interfere Silica 500 mg L Silicate 100 mg L Sulfate 2000 mg L Sulfide Interfer...

Страница 52: ...illows 1 Potassium Persulfate Powder Pillows Required Apparatus Description Unit Cat No Bottle mixing 6 pkg 439 06 Cylinder graduated 5 mL each 508 37 Flask volumetric 50 mL Nalge each 14060 41 Goggle...

Страница 53: ...xide Standard Solution 5 0 N 100 mL MDB 2450 32 Water deionized 4 L 272 56 Optional Apparatus Description Unit Cat No Ampule Breaker Kit each 21968 00 Cylinder graduated 10 mL each 508 38 Cylinder gra...

Страница 54: ...26710 00 UV lamp for 9 V battery power supply each 26708 00 UV lamp power supply for 26708 00 lamp requires 9 V batteries each 26706 00 Replacement Parts Batteries alkaline AAA 4 pkg 46743 00 Battery...

Страница 55: ...2 1 Section 2 Instrument Manual...

Страница 56: ...2 2...

Страница 57: ...the backlight This key functions the same in all instrument modes and ranges ZERO SCROLL In measurement mode sets the instrument to zero In menu mode scrolls through menu options Also scrolls numbers...

Страница 58: ...the current range 2 Press the READ ENTER key to toggle between ranges 3 Press MENU again to accept and exit back to the measurement screen Setting the Time 1 Press the MENU key then press the ZERO SCR...

Страница 59: ...ss the ZERO SCROLL key until the display shows RCL The instrument automatically stores the last 10 measurements 2 In RCL press READ ENTER to recall the stored measurements beginning with the most rece...

Страница 60: ...battery compartment cover The display will show the software version number e g P 1 6 after correct battery installation When replacing discharged batteries always replace the complete set of four alk...

Страница 61: ...2 7 Instrument Operation continued Figure 1 Battery Installation...

Страница 62: ...2 8...

Страница 63: ...ges in the order that they appear on the display Service Centers are listed in page 2 37 Error Messages 1 E 0 No Zero User mode Error occurs when trying to read a standard in the user calibration mode...

Страница 64: ...chemistry If the E 1 or E 2 error occurs while zeroing the meter the meter will require the user to re zero 4 E 3 Standard Adjust Error The value obtained on the prepared standard exceeds the adjustme...

Страница 65: ...r measure the absorbance value again If the problem persists contact a Service Center page 2 37 6 E 7 Standard Value Error User mode Standard concentration is equal to another standard concentration t...

Страница 66: ...e instrument If the problem persists contact a Service Center page 2 37 Note See Maximum Minimum Displayed Value on page 2 26 for more information 9 Overrange flashing number above stated test range N...

Страница 67: ...nown standard Use the standard described in the procedure 1 Place a blank in the meter in measurement mode Press ZERO SCROLL 2 Place the reacted standard in the meter Press READ ENTER 3 Press MENU the...

Страница 68: ...bration Adjusted icon will appear in the display window To turn off Standard Calibration Adjust SCA 1 Press MENU 2 Press ZERO SCROLL until SCA appears in the display 3 Press READ ENTER then press ZERO...

Страница 69: ...uments Any chemistry that can be run at the instrument wavelength may be user entered in these channels Using prepared standard solutions that cover the range of interest the meter generates a calibra...

Страница 70: ...rations are stored upon exit from the calibration or edit modes Note To return to factory settings following the instructions in Retrieving the Factory Calibration on page 2 25 If the instrument is sh...

Страница 71: ...reagent blank is significantly more turbid or colored than deionized water Use the deionized water or the reagent blank as the zero concentration point S0 in the following calibration procedure 1 Turn...

Страница 72: ...ter or range RES resolution cannot be changed 6 In uncalibrated meters or meters with ranges labeled Abs RES will appear Press ZERO SCROLL to review the current resolution decimal placement Press ZERO...

Страница 73: ...AD ENTER key to move from digit to digit Use the ZERO SCROLL key to change the number 12 After completing entry of the first standard value press the READ ENTER key The display will show A1 13 Insert...

Страница 74: ...dure uses the Edit mode 1 Turn on the instrument and select the range to be calibrated An arrow at the top of the display will point to the selected range To change ranges press the MENU key then use...

Страница 75: ...appear on the display 7 To enter the absorbance value for S0 press the READ ENTER key to go to entry mode Use the ZERO SCROLL key to select the numerical value then press the READ ENTER key to accept...

Страница 76: ...ay Note When editing a factory calibrated meter or range RES resolution cannot be changed Note When RES or S0 appears in the display press ZERO SCROLL to quickly scroll to the data to be edited 3 In u...

Страница 77: ...the READ ENTER key to go to entry mode Use the ZERO SCROLL key to select the numerical value then press the READ ENTER key to accept the entry and advance to the next decimal place Repeat this sequenc...

Страница 78: ...ation or the factory calibration if no user entered calibration has been completed Deleting Calibration Points 1 Select the range containing user entered calibration points See Switching Ranges on pag...

Страница 79: ...Select the range to restore factory default calibration See Switching Ranges on page 2 4 2 Press and hold the MENU key until USER then CAL appears 3 Press the ZERO SCROLL key to find dFL 4 Press the R...

Страница 80: ...ue of the standards entered in a user calibration Measurements that exceed the minimum or maximum standards entered in the user calibration will return a flashing number indicating underrange or overr...

Страница 81: ...alibration with the following standards S0 1 00 S1 2 00 S2 4 00 For Hach calibrated programs the maximum and minimum displayed values always equal the factory calibrated values and cannot be changed M...

Страница 82: ...C Immunity Per 89 336 EEC EMC EN 61326 1998 Electrical Equipment for measurement control and laboratory use EMC requirements Supporting test records by Hach Company certified compliance by Hach Compan...

Страница 83: ...EN 55022 CISPR 22 Class B emissions limits Canadian Interference causing Equipment Regulation IECS 003 Class A Supporting test records from Hach EMC Test Facility certified compliance by Hach Company...

Страница 84: ...to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment...

Страница 85: ...moving one of its batteries to verify that it is or is not the source of the interference 2 Move the Pocket Colorimeter instrument away from the device receiving the interference 3 Reposition the rece...

Страница 86: ...2 32...

Страница 87: ...2 33 At Hach Company customer service is an important part of every product we make With that in mind we have compiled the following information for your convenience GENERAL INFORMATION...

Страница 88: ...2 34...

Страница 89: ...0 227 4224 Loveland Colorado 80539 0389 U S A By FAX For order information by E mail 970 669 2932 Hach Loveland orders www hach com Information Required Hach account number if available Purchase order...

Страница 90: ...ts in analytical methods they are happy to put their talents to work for you Call 1 800 227 4224 or E mail techhelp hach com International Customers Hach maintains a worldwide network of dealers and d...

Страница 91: ...3H 0X4 800 227 4224 USA only 800 665 7635 Canada only FAX 515 232 3835 Telephone 204 632 5598 FAX 204 694 5134 E mail canada hach com Latin America Caribbean Africa Europe the Middle East Far East Ind...

Страница 92: ...efective product or refund the purchase price excluding original shipping and handling charges Any product repaired or replaced under this warranty will be warranted only for the remainder of the orig...

Страница 93: ...mage caused by misuse neglect accident or improper application or installation damage caused by any repair or attempted repair not authorized by Hach Company any product not used in accordance with th...

Страница 94: ...ranty gives you specific rights and you may also have other rights that vary from state to state This warranty constitutes the final complete and exclusive statement of warranty terms and no person is...

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