BOD-Measurement-System BD 600
BOD measurement is an important measurement of the effects of domestic and industrial waste water on sewage plants and outflow points. The sensor system BD 600 is a 6 sample system that allows precise measurements of BOD based on the manometric principle. Manometric respirometers relate oxygen uptake to the change in pressure caused by oxygen consumption while maintaining a constant volume. Due to the modern integral pressure sensors, it is not necessary to use mercury for the measurements. The BOD values are stored automatically in the sensor memory at regular intervals and can be called up on the large-format display at any time without the need for time-consuming conversion using factors. This means that test series that end on a Sunday can be evaluated during the following week without any problem. Measurement series can be stored on USB stick/ SD card or transferred via USB cable to evaluate the data on a computer. The measurement period is user-selectable between 1 and 28 days to suit the application. While short measurement periods are useful for scientific applications, standard BOD measurements typically extend over a period of 5 days - and manometric determination of OECD, for example, generally takes place over a period of 28 days.Scope of supply:BD 600, complete unit with 6 or 12* sensor heads and control unit with batteriesPower supply unit incl. Y-cable for common power supply of BD 600 and stirring unitInductive stirring unit6 or 12* sample bottles6 or 12* rubber gaskets6 or 12* magnetic stirring rods1 overflow flask, 157 ml1 overflow flask, 428 ml1 bottle, 50 ml potassium hydroxide solution1 bottle, 50 ml nitrification inhibitor solution1 instruction manualremote controlSpecificationsMeasuring principle:respirometric, electronic pressure sensorRanges:0 - 40, 0 - 80, 0 - 200, 0 - 400, 0 - 800, 0 - 2000, 0 - 4000 mg/l O2Measurement period:User-selectable, between 1 and 28 daysPower supply:100-240 V, battery buffered or via power supply using Y-cableProtection class:IP 54 (sensor head)Interface:USB host port (USB stick), USB device port (computer), SD cardClock:Real timeApplication:BOD5 / BODF / OECD301F* 6 or 12 depending on BOD-System (BD600 or BD606)
Boiling stones, PTFE
Ultra-pure, virgin PTFE chips promote gentle, efficient boiling and help prevent overheating, even of highly volatile liquids. Ideal for continuous extraction methods. Stones minimize "bumping" during reflux and distillation. The boiling stones are not affected by acids, hydrocarbons, ketones, esters, alcohols or alkalis. They are easily cleaned and non-contaminating. Shows no trace of face acidity or alkalinity. They will not scratch or abrade glassware and leave no residue. Usable up to 288°C.Chemical resistantIdeal for boiling organic liquidsMinimizes superheating
Bottle-top dispenser Dispensette® S Trace Analysis Analog, valve Pt/Ir
Dispensette® S Trace Analysis is ideal for precise volume dosing of high purity media for trace analysis. Can be used as hydrofluoric acid dispenser with Pt / Ir valve.Analog volume displayQuickly adjustable dosing volumeVolume selection with interior scalloped trackSimple calibration adjustment with a supplied toolValve system - tight sealing without additional sealing ringsRemovable filling and exhaust valve with safety bulb (closes when discharge tube is not mounted)Filling valve, olive-shapedAutoclavable at 121 °CScope of supply:Bottle-top dispenser Dispensette® S TA, DE-M marked, with performance certificate, telescope filling tube, recirculation valve (optional), mounting tool, bottle adapters GL 28 / S 28 (ETFE), GL 32 (ETFE), S40 (PTFE)
Bottles (Karlsruhe bottles) with stoppers
The special bottle neck of the Karlsruhe bottles absorbs the water which is displaced by the stopper of the electrode. This construction guarantees clean working and ensures at the same time that the test results are not adulterated by unwanted entry of oxygen into the samples.
Butter butyrometer, according Roeder
Weighing method for 5 g butter, with two openings, frosted label on bulb, complete with rubber stoppers and glass beaker.
Butter butyrometer, borosilicate glass
Butter butyrometer according to Roeder‘s weighing method.
Butyrometer water bath WB 22 Pump
The water provides optimal operating comfort by splash-proof keypad and bright strong multi-display (LED). Modern microprocessor technology with PID temperature control ensures optimum temperature stability in the water bath. The circulation pump is used to improve the temperature distribution. The adjustable overheating protection protects the samples. Bath tanks and all parts in contact with the bath liquid are made of high quality stainless steel.Only suitable for milk butyrometer.
Butyrometer Waterbath WB436
Universal water baths made of stainless steel with external heater, installed separately in the housing. With integrated overheat protection.Analog universal water bath with thermostatic heat controller and adjusting knob.Digital universal water bath with actual value temperature display measured by a PT 100 sensor. Timer with acoustic signal.Please order stainless steel butyrometer stand for 36 butyrometer separately.SpecificationsTemperature range:up to 100 °CDimensions:396 mm x 331 mm x 265 mmSupply requirements:230 V, 50...60 HzHeating output:1000 WUsable capacity:16 lNet/ gross weight:10 kgButyrometerstand (optional):for 36 piecesDimension stand (B x T x H):383 x 325 x 200 mmDiameter hole:27.2 mm
Bytac® Bench protectors
Bytac® Bench protectors, FEP Film with Vinyl or Aluminum Backing. Inert to most chemicals - Non-stick; easy to clean - Use to resurface bench tops and line fume hoods. Contrasting work surface for viewing color changes during titrations. Protects surfaces against absorption of radioactive chemicals. Vinyl backing is recommended for all applications up to 93°C. Aluminium foil-backing is resistant to high temperatures up to 182°C for up to one hour.
Calibrating standards TOC
Total Organic Carbon (TOC) standards are manufactured from high purity raw materials and are suitable for calibrating of TOC analysers to a high accuracy. These standards are independent, traceable and certified. TOC750P contains preservatives.
Calibration Kit for Turbidimeter Eutech™ TN-100
Calibration kit includes 4 x 60 ml standard solutions (0.02, 20.0, 100, 800 NTU).
Carbon Dioxide Safety Monitor AX60
Gas warning device for precise measurement of the amount of CO2 in the air. 3 alarm settings factory set: Time-weighted average (TWA) alarm (5000 ppm; 0.5% CO2), Low alarm (15,000 ppm; 1.5% CO2) and High alarm (30,000 ppm; 3% CO2)No calibration required (unless local regulations state otherwise)Very long life sensor can last up to 15 yearsUp to 4 x CO2sensors and 8 x CO2 alarms can be used per Central Display UnitSupplied with a relay on each alarm which can be used to trigger ventilation, extraction or a building management systemEasy installation and maintenance can be conducted by the userAdditional (quick connect) CO2 sensors and alarms available if more than one entrance to the laboratory or more than one risk areaAssists in compliance with Exposure Limit regulations such as EH40Scope of delivery: wall-mounted central display unit, CO2 sensor and CO2 alarm which can provide an early warning of a CO2 leak.Specifications:Range : Accuracy :0.1 to 5 % CO2 +/- 5 % of alarm setpointAlarm intensity :88 dbAMonitor Display :16 digit 2 line LCD in ppmTWA Alarm :5,000 ppm (0.5 %) over 8 hoursCO2 Alarms :15,000 ppm (1.5 %) and 30,000 ppm (3 %)Operating Temperature :-5 to 50 °CCentral Unit Dimensions :175 x 110 x 75 mmSensor & Alarm Dimensions :72 x 170 x 45 mmIP Rating :IP55 (IP54 Central Display Unit)Warranty :5 years for electronics and sensor
Catalyst tablets Kjeltabs
Environmentally hazardous substance, N.O.S., UN 3077, 9, III, (E).
Cell test Ammonium
For cyanide-free determination of ammonium in wastewater, groundwater, surface water and seawater.Scope of supply:25 tests
Cells for Photometer photoLab®
Cuvettes for photometric routine and water analytics in the UV-VIS and VIS range. Cells with matt side surface are suitable for the automatic cell detection of the photoLab® filter and spectral photometer. The glass and quartz cuvettes have a marking in order to place the cuvettes into the photometer in the same direction for an even higher precision.Automatic cell detectionGlass and quartz cells with marking for higher precisionHigh quality optical glass for VISHigh quality quartz glas for UV-VIS
Cellulose-Extraction thimbles Grade 603
Manufactured in pure cellulose according to DIN 12449.
Centrifuge Compact III
Small centrifuge for the determination of fat in milk and dairy products acc. to Gerber, solubility of milk powder acc. to Gerber and ADPI as well as for the application of the Babcock method.4 pre-programmed speeds for:Gerber Butyrometers (350 x g)Solubility in milk powder acc. to Gerber (164 x g)Solubility in milk powder acc. to ADPI (164 x g)Babcock (166 x g)Microprocessor controlTimer with 4 segment advertisements (minutes, seconds), adjustable from 1 to 99 minutes, countdown in secondsHeating with 2 segment advertisements, adjustable from 0 to 65 ° CAutomatic brakeCover lockUnbalance shut-offEmergency releaseError messageLED display to show brake, timer, motor, heating, error messagesSteel casingIncl. Rotor (of aluminium) for 8 inserts (please order separately)