374 Results for: "Water Systems"

Supplier: Avantor

No matter what your requirements are for volumetric systems, HYDRA-POINT™ Karl Fischer reagents make water determination easy and trouble-free. They are pyridine-free and specially formulated for existing application procedures to give you consistent, reliable results for all types of samples.

Supplier: Lovibond Tintometer

For colour grading of clear, light yellow liquids such as clear oils, chemicals, petrochemicals and water. In particular, the Nessleriser 1209 is designed for companies wishing to comply with ASTM D 1209, which specifies a Nessleriser system for colour comparison using 100 ml tubes, with the 100 ml graduation mark 275 to 295 mm above the bottom of the tube. Each system covers a set measuring range and includes.

Supplier: VWR Chemicals

Every MediaBag T (tube-bag) is filled with pre-weighed granulated media. Connect the 0,2 μm filter unit aseptically to the tube by using the connector device. Add water under aseptic conditions into the bag via the filter system. Protect the tube end with the red cap.

Supplier: VELP SCIENTIFIC

Measurement system without mercury for determination of the amount of dissolved oxygen consumed by aerobic biological microorganisms in water. The sensor uses manometric technology and micrprocessor control to provide regular data measurements over defined periods.

Supplier: VWR Collection

These circulating chillers are an environmentally friendly, water-conserving and reliable means of controlling the temperature of liquids in open tanks or closed loop systems. They provide high cooling performance at low cost. With a temperature range from −10 to +40 °C, they are ideally suited for many process and routine applications.

Supplier: Lovibond

The Comparator System 2000+ is a precise and general purpose colorimetric system for water testing. It is a high quality instrument for visually matching the intensity of the colour of the sample with Lovibond glass filters. It includes an adjustable cell compartment for samples in cells of up to 40 mm in path length. Nessleriser 2150 and the 2250 are longer path length instruments for matching a column of a sample in a Nessler cylinder with Lovibond glass filters. They are designed for measuring concentrations that are below the sensitivity of the Comparator 2000+.

Supplier: JULABO GmbH

Environmentally friendly recirculating coolers that saves tap water, these units were designed for simple cooling tasks where reliable continuous operation is important. Due to their compact design, the coolers can be positioned either on or under laboratory bench tops. Units can be used with water, water/glycol or Julabo Thermal G. They are ideal for cooling rotary evaporators, Kjeldahl instruments, measurement cells, automated analysis systems, CCD cameras, polarimeters, refractometers, calorimeters and Soxhlet apparatus.

Supplier: VWR Collection

For quality control, routine monitoring, measuring temperatures in cuvettes, gas systems, reagents, chemical solutions, soil, water baths, ovens, incubators, petroleum products, foods and wastewater. Instant memory key recalls minimum and maximum readings over any time period. Stainless steel K-type thermocouple probe for any J-, K- or T-type probe.

Supplier: BURKLE

TeleScoop is a versatile sampling system with exchangeable tools for a wide range of applications. The tools (angular beaker, pendulum beaker, bottle holder, stainless steel beaker and dip net) are attached to the telescopic rod by a practical snap-in joint. Ideal for sampling from baths, tanks, shafts, open water courses. Sampling depths down to 6 m can be reached with the adjustable telescopic aluminium rod.

Supplier: CHROMACOL

Level 100 EPA vials: These are processed and packaged under a strict registered ISO Quality Management System in the same manner as Level 300 products. Level 100 products are not certified or pre-cleaned. Every case of product is labelled with its production number and is custody sealed to ensure reliable chain-of-custody. These convenience kits are recommended for discrete water sampling under EPA 40 CFR 136 'Guidelines for Establishing Test Procedures for the Analysis of Pollutants" and EPA 40 CFR 141 "National Interim Primary Drinking Water Regulations: Control of Trihalomethanes in Drinking Water'.

Supplier: VACUUBRAND

These chemistry vacuum systems can be used in a wide range of applications for evacuating or moving gases and vapours between containers in chemistry and physics laboratories, e.g. as an alternative to water jet pumps and rotary vane pumps. Compact construction, very quiet running, long service life; diaphragm and valves are very easy to replace. Oil-free vacuum.

Supplier: VACUUBRAND

These chemistry vacuum systems can be used in a wide range of applications for evacuating or moving gases and vapours between containers in chemistry and physics laboratories, e.g. as an alternative to water jet pumps and rotary vane pumps. Compact construction, very quiet running, long service life, diaphragm and valves are very easy to replace. Oil-free vacuum.

Supplier: VACUUBRAND

These chemistry vacuum systems can be used in a wide range of applications for evacuating or moving gases and vapours between containers in chemistry and physics laboratories, e.g. as an alternative to water jet pumps and rotary vane pumps. Compact construction, very quiet running, long service life; diaphragm and valves are very easy to replace. Oil-free vacuum.

Supplier: VACUUBRAND

These chemistry vacuum systems can be used in a wide range of applications for evacuating or moving gases and vapours between containers in chemistry and physics laboratories, e.g. as an alternative to water jet pumps and rotary vane pumps. Compact construction, very quiet running, long service life, diaphragm and valves are very easy to replace. Oil-free vacuum.

Supplier: MP Biomedicals

Role of a balanced salt solution in cell culture is multifaceted and can be divided into four principal functions: 1. Serves as an irrigating, transporting and diluting fluid while maintaining intra- and extracellular osmotic balance; 2. Provides cells with water and certain bulk inorganic ions essential for normal cell metabolism; 3. Combined with a carbohydrate, such as glucose, provides the principal energy source for cell metabolism; 4. Provides a buffering system to maintain the medium within the physiological pH range (7,2 to 7,6).

Supplier: MP Biomedicals

Storage: +4°C, protect from light
3- (4,5-Dimethyl-2-thiazolyl-2)-2,5-diphenyl-tetrazolium bromide is used as a colorimetric metabolic activity indicator in cell viability assays. Thiazolyl Blue Tetrazolium Blue (MTT) is a dye used in measurement of cell proliferation. MTT produces a yellowish solution that is converted to dark blue, water-insoluble MTT formazan by mitochondrial dehydrogenases of living cells. The blue crystals are solubilized with acidified isopropanol and the intensity is measured colorimetrically at 570 nm. MTT has been used as a histochemical/cytochemical reagent and for the detection of NAD. ADP-linked enzyme systems in tissue cannot be detected with MTT, due to binding of the cation by the cyanide trap used. MTT is rapidly reduced to the formazan, which chelates with nickel, copper, and cobalt; the cobalt chelate has been used in oxidative systems.

Supplier: MP Biomedicals

Tris have been useful as buffers in a wide variety of biological systems. It has been used as a starting material for polymers, oxazolones (with carboxylic acids) and oxazolidines (with aldehydes). It does not precipitate calcium salts and is of value in maintaining solubility of manganese salts. It can be used for the direct standardization of a strong acid solution; the equivalence point can be determined either potentiometrically or by use of a suitable indicator such as 3-(4-Dimethylamino-1-naphthylazo)-4-methoxybenzenesulfonic acid. It is RNAse and DNAse-free. Tris is relatively non-hygroscopic ; but, if needed, it can be dried at 100 °C for up to 4 hours to remove any water.
Tris is used in pH control in vitro and in vivo for body fluids and in buffering systems for electrophoresis applications.Tris is used in assays used to characterize the activity and kinetics of the enzymes that catalyze SUMOylation of Small ubiquitin-like proteins (SUMO) and SUMO-dependent protein-protein interactions.

Supplier: IKA

The HBC circulating baths have a high-quality stainless steel bath, an extended temperature range for tempering fluids in open and covered water baths up to 200/250 °C. The LED/ graphic TFT Display illustrates all relevant process parameters. The large surface of the radiator allows for an optimum heat exchange and a smooth warming of the medium. Units feature push and turn buttons for intuitive menu navigation. All models conform to the highest safety classification III (FL) for use with flammable liquids according to DIN 12876. HBC immersion circulators ensure short heating up times and have a temperature stability of ±0,01 /0,02 K ( basic/control model). The units have an integrated cooling coil, adjustable safety circuit and a front drain valve for safe emptying. To drain the system, a separate valve helps to avoid direct contact with fluid.

Supplier: MEMMERT

Humidity chambers which have corrosion resistant, stainless steel inner chamber and housing for long-term climatic tests at constant temperature and humidity. Ideal for food processing, cosmetics, pharmaceutical, biotechnology and electronics industries. Units feature an auto diagnostic system with fault indication for temperature and humidity control. The working chamber is heated on all six sides; this together with electronic humidity control prevents condensation forming in the chamber. Distilled water is supplied from an external 2,5 litre tank by means of a self priming pump. lnternal log memory 1024 kB (ring buffer) for all relevant data, capacity is approximately three months at one minute intervals. GLP/GMP compliance is assisted by the USB interface and 'Celsius' software for programming and documentation.

Supplier: JULABO GmbH

Ultra-low temperature refrigerated circulators for heating and cooling. The units are suitable for external temperature applications with simultaneous operation in the bath tank. The units provide particularly high heating and cooling capacities for rapid heating and cooling times even for large volume, external systems. FP models offer proportional cooling control to ensure energy saving performance and to reduce heat generation to the environment. Models with the designation W are water cooled. All models have handles and castors which allow easy transportation and drain ports for conveniently draining the bath fluid. The units offer an improved insulation to prevent ice formation and have a filling level display. Typical applications: Temperature control of jacketed reaction vessels, autoclaves, mini plant installations, kilo labs, freezing point determination, calibration at low temperatures and petroleum testing.

Supplier: IKA

ICC compact immersion circulators allow for flexible coupling to water baths of different volumes. They are designed for tempering liquids up to temperatures of 150 °C. The convenient carrying handle and compact design allow easy transportation as well as comfortable use. An economic and attractive solution for basic applications such as sample tempering and glassware heating.

Supplier: Lovibond

Comparator 2000+ is a versatile modular system for testing water.This kit measures chlorine, alkalinity, pH calcium hardness and cyanuric acid.

Supplier: Lovibond

These non oxidising biocide test kits are based on novel colorimetric or titrimetric procedures and are designed to measure the accurate biocide levels in minutes to ensure continued system control.

Supplier: Lovibond

CHECKIT® Comparator is a compact and handy colorimetric unit which is suitable for both mobile and static analysis work. Supplied with a generous number of different colour scales, it provides the basis for a comprehensive, easy-to use colorimetric analysis system.

Supplier: Lovibond

CHECKIT® Comparator is a compact and handy colorimetric unit which is suitable for both mobile and static analysis work. Supplied with a generous number of different colour scales, it provides the basis for a comprehensive, easy-to use colorimetric analysis system.

Supplier: Lovibond

CHECKIT® Comparator is a compact and handy colorimetric unit which is suitable for both mobile and static analysis work. Supplied with a generous number of different colour scales, it provides the basis for a comprehensive, easy-to use colorimetric analysis system.

Supplier: Lovibond

CHECKIT® Comparator is a compact and handy colorimetric unit which is suitable for both mobile and static analysis work. Supplied with a generous number of different colour scales, it provides the basis for a comprehensive, easy-to use colorimetric analysis system.

Supplier: Lovibond

CHECKIT® Comparator is a compact and handy colorimetric unit which is suitable for both mobile and static analysis work. Supplied with a generous number of different colour scales, it provides the basis for a comprehensive, easy-to use colorimetric analysis system.

Supplier: Lovibond

CHECKIT® Comparator is a compact and handy colorimetric unit which is suitable for both mobile and static analysis work. Supplied with a generous number of different colour scales, it provides the basis for a comprehensive, easy-to use colorimetric analysis system.

Supplier: Lovibond

CHECKIT® Comparator is a compact and handy colorimetric unit which is suitable for both mobile and static analysis work. Supplied with a generous number of different colour scales, it provides the basis for a comprehensive, easy-to use colorimetric analysis system.