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4.4 of 5.0 with 35 Reviews
SALE PRICE: $294.09
Manufacturer: LaMotte
Brand: LaMotte
Manufacturer: LaMotte
Brand: LaMotte
The procedure requires about 15 minutes and employs a test strip. Inorganic As+3 and As+5 are converted to arsine gas. This reacts with the test strip in a closed container and produces yellow to brown colors on the strip. The strip color is compared to a color chart to determine concentration in ppb.
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4.4 of 5.0 with 25 Reviews
SALE PRICE: $294.83 15% OFF
Manufacturer: Cannon Instrument
Brand: CANNON Instrument
Manufacturer: Cannon Instrument
Brand: CANNON Instrument
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The Cannon ZCAC-RO-7 Zeitfuchs cross-arm viscometer has a permanently attached 51mm diameter round metal holder and a 600 to 3,000 centistokes (cSt) viscosity measuring range. It is suitable for the measurement of either transparent or opaque Newtonian fluids such as fuels and lubricants. It uses a viscometer constant of 1.0 centistokes per second (cSt/s) for calculating kinematic viscosity of sample sizes as small as 1.0mL. The ZCAC-RO-series size 7 viscometer uses a 230mm depth water bath (not included) for temperature-control testing and a vacuum (not included) to draw a sample up for timed testing between two sets of printed marks. It includes an ASTM International certificate of calibration. This calibrated capillary-style viscometer meets the ASTM International D446 standard for viscometers and the D445 standard for testing viscosity. A viscometer, also called a viscosimeter, is an instrument used to measure the friction caused by the relative motion of a Newtonian fluid and a known surface, and is usually expressed in units of poise (P), centipoise (cP), pascal seconds (Pa s), and millipascal seconds (mPa s). Viscometers have several forms, including but not limited to falling ball, rotational, vibrating, capillary, funnel, and bubble. A falling ball viscometer measures the time it takes for a ball of known diameter and density to fall through fluid in a cylinder of known diameter. A rotational viscometer measures the force required to stir a fluid. A vibrating viscometer measures the power input necessary to keep the oscillator vibrating at constant amplitude while immersed in a fluid. A capillary viscometer has a narrow-bore vertical section with two printed marks that measure time required for a known volume of fluid to fall a known distance. A funnel viscometer, such as a Ford, Zahn, or Shell cup, measures the time it takes a known volume of fluid to flow from the base of a cone through a short tube. A bubble viscometer measures the time required for an air bubble to rise through a fluid. Viscosity me...
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4.4 of 5.0 with 23 Reviews
SALE PRICE: $295.00 1% OFF
Manufacturer: BYK-Gardner USA
Brand: BYK-Gardner
Model: 0172
Manufacturer: BYK-Gardner USA
Brand: BYK-Gardner
Model: 0172
Ford viscosity cups have been produced by Gardner Laboratory. Each cup produced has been in Conformance with viscosity cup flow characteristics. They are calibrated against standard oils referenced to certified NIST (National Institute of standards and technology) oils. The cups are for low viscosity liquids, their Body made of solid bar aluminum and have a Stainless steel orifice. The Ford viscosity cups are d to be within 3 percent (drain time of calibration oil) throughout the recommended use range.
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4.4 of 5.0 with 28 Reviews
SALE PRICE: $295.89 5% OFF
Manufacturer: Thermo Scientific
Brand: UV-Vis
Manufacturer: Thermo Scientific
Brand: UV-Vis
Features an extensive selection of easy-to-install Excitation and Emission Filters that allows the user to configure the unit to meet application needs. Menu-driven software guides the operator through quantitative analysis, and automatic gain adjustment eliminates time consuming manual adjustment. Sample concentrations are calculated based upon linear regression analysis of standard curve data. Software includes a Filter Selection Help Guide and a Diagnostics menu for operation status checks. RS 232 serial interface included for data output to printer or computer. Large, versatile sample compartment accommodates a wide variety of cells or cuvettes. Ergonomic design facilitates quantitative analysis of multiple samples.
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4.4 of 5.0 with 37 Reviews
SALE PRICE: $296.91 1% OFF
Manufacturer: Thermo Scientific
Brand: UV-Vis
Manufacturer: Thermo Scientific
Brand: UV-Vis
Thermo Fisher Scientific manufactures analytical instruments, laboratory equipment, consumables, and software under the Thermo Scientific, Fisher Scientific, Barnstead, and Nalgene brands, among others. The company is headquartered in Waltham, MA.
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4.4 of 5.0 with 7 Reviews
SALE PRICE: $301.40
Manufacturer: BYK-Gardner USA
Brand: BYK-Gardner
Model: 0650
Manufacturer: BYK-Gardner USA
Brand: BYK-Gardner
Model: 0650
BYK-Gardner bubble viscometers are used to quickly determine kinematic viscosity of known liquids such as resins and varnishes. The time required for an air buble to rise is directly proportional to the viscosity of the liquid - the faster the bubble rises, the lower the viscosity. BYK-Gardner bubble viscometers come in lettered tubes A5 through Z10 in four different tube sets covering viscosity ranges from 0.05 to 1,000 stokes.
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4.4 of 5.0 with 35 Reviews
SALE PRICE: $306.00 1% OFF
Manufacturer: Wildlife Supply Company
Brand: Wildlife Supply Company
Manufacturer: Wildlife Supply Company
Brand: Wildlife Supply Company
The only tester in the world that measures electrical conductivity, total dissolved solids, pH and temperature! No more switching between meters - this one does it all! All pH and EC/TDS readings are automatically temperature compensated (ATC) for. The EC/ TDS conversion factor is user selectable as well as the temperature compensation coefficient B. Battery operated for portability with about 100 hours of continuous use. Waterproof, floating and with a large, easy-to-read dual-level LCD and automatic shut off. Replaceable pH electrode cartridge with cloth renewable junction. Adjustable B. Adjustable TDS ration. Battery level and stability indicator. The replaceable pH electrode cartridge with a cloth removable junction as well as an EC/ TDS graphite electrode which resists contamination by salts and other substances that come in contact with the electrode. Fast, efficient, accurate and portable.
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4.4 of 5.0 with 15 Reviews
SALE PRICE: $310.00
Manufacturer: COLE-PARMER
Brand: GFS Chemicals Inc
Manufacturer: COLE-PARMER
Brand: GFS Chemicals Inc
Kits include a 250-mL bottle of primary standard, a secondary standard-filled cuvette for each of the NTU values listed, and two empty glass cuvettes. All cuvettes are designed to fit your brand-name meter.
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4.4 of 5.0 with 21 Reviews
SALE PRICE: $311.08 1% OFF
Manufacturer: ASTA
Brand: Hudson Surface Tech
Model: PFA2309H00
Color: Silver
Manufacturer: ASTA
Brand: Hudson Surface Tech
Model: PFA2309H00
Color: Silver
μFocus targets give you a precisely formed dried droplet spot of predetermined size. You can work with larger (1700-2000 μm) spots and use standard spotting techniques. You can also work with much smaller spots (700-900 μm) that allow you to reduce the amount of matrix used, to maintain optimum matrix to analyte ratio with less concentrated or smaller analyte samples. Many users report 5-10x increases in sensitivity. Because μFocus spots are uniform, you also see improvements in spot-to-spot reproducibility, making quantitative analysis and fingerprint assays more reliable.
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4.4 of 5.0 with 31 Reviews
SALE PRICE: $313.00
Manufacturer: Scientific Equipment of Houston
Brand: SEOH
Manufacturer: Scientific Equipment of Houston
Brand: SEOH
An economically priced Spectrometer, but capable of performing most of the experiments like spectras, angle of prisms, refractive indexes etc. Consists of heavy base with 170 mm diameter circle, divided 0 to 360 degrees, which rotates independently and has locking screw. Collimator: Fixed, with adjustable axis, objective lens with focusing system, variable aperture slit. Telescope: Moveable with set screw and fine motion screw, adjustable axis. Telescope pillar carries vernier scale for accurate measurements. Focussable objective Lens. Ramsden Eyepiece with cross-wires and locking ring for focus lock. Prism Table: Provided with three leveling screws and engraved lines for prism placement in experiments. Comes complete with Prism Clamp, Grating Holder, Tommy Bar for axis adjustment and Instruction Sheet.
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