711 NESSLERIZER SYSTEMS/AQUA COMPARARTOR TEST KITS/COD
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Nesslerizer BodyAvailable in 2 lengths. Long path length allow the visual measurements of parameters in which very pale colours are produces such as color of water & low iamges of chlorine. Integrated PrismBrinsg Simple & standard together into one field of view fo side by side viewing. Nessler IlluminatorSuppplied with north american , UK & EU style plugs to ensure usability worldwide. Low voltage is maintained at 12 v ensurign no high voltage near liquid samples.
Light SourceSimple one button press operation the light is on olny when you need it Provides a constant & stable light using a tungsten lamp & caliberated color temprature filter. This guarantess 24 hr correct lighitng conditions for the whole day. |
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The Aqua Comparator™ is an accurate, easy-to-use test kit for water analysis. Simply add the reagent to the sample cell, rotate the disc until the color matches the sample and read the concentration value.
The instructions provide a step-by-step explanation of how to conduct the water test, ensuring that even "non-chemists” can achieve reliable and accurate measurements quickly.
Test Kit includes: Comparator, Color Disc, Sample Cells, Instructions, Reagents, and Carrying Case. |
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Model 605-AHT Pocket Comparator with Magnifying Prism & 600-DA "Daylite" Illuminator Hand-held and completely portable, comparator outfits are ideal for testing water, wastes, boiler and cooling water, process fluids, swimming pools, spas, and more... Ideal for lab, plant, field or classroom. Exclusive Features:Pocket Comparator is made of tough, chemical resistant phenolic. Compact, only 3-3/4 inches square. Precision diffuser provides even illumination to color standard and sample, without distortion or shadow. Color discs contain 9 to 10 guaranteed permanent color standards. Color discs fit interchangeably in the comparator. Precision polished standards have uniform colors edge to edge. Much easier to compare than continuous color wedges having different colors from top to bottom. Square precision tubes supplied with comparator show uniform colors edge to edge. Superior to round tubes, which cause errors because colors seen are not uniform. |
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Model 611-A Aqua Tester with Magnifying Prism For Color of Water & Very Low Concentrations Important Features:1.15 times more sensitivity than conventional comparator methods. The most advanced visual instrument for measuring color of water over 5 ranges
(APHA Pt-Co Color, ASTM D-1209), fluoride, and low chemical concentrations of chlorine, ammonia, nitrogen, silica, etc.
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Orbeco-Hellige’s micro-COD Method, when performed with The Analyst or The Mini Analyst, offers low-cost, simple Chemical Oxygen Demand testing fully compatible with USEPA 410.4 and Standard Methods 5220 Uses convenient 16mm diameter screw-cap tubes containing a specific oxidizing agent. The tubes, containing reagents and samples, are heated with a convenient COD reactor (see below) at 150°C for 2 hours (or less under certain conditions) and then are inserted into the Analyst or the Mini Analyst for a direct test reading. The 2 hour time period is mandatory for EPA approved methods, but COD readings for non-reporting purposes may be obtained in as little as 15 minutes for readily oxidized wastes. The Chemical Oxygen Demand (COD) test is widely used as a measure of organic cantamination by determing the quantity of oxygen required for oxidation of reduced species including organic matter, in a water sample using a specific oxidizing agent, temperature and time reduction. COD testing is more reliable and is preferred to BOD testing as test results are more reproducible and are ready in two hours (or less) rather than 5 days. In addition, COD testing is a better indicator of organic pollutants in industrial wastewater containing cyanides and heavy metals. COD testing affords rapid response to changing conditions before critical problems develop.
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