4970 Results for: "Check+Valves"

Supplier: VWR Chemicals

The reference standards are designed to check the accuracy and the reliability of the results. They are meant to provide reassurance that the photometer is working correctly.

Supplier: Sartorius Balances

QApp Pipette check advanced (Testing of piston stroke pipettes acc. to DIN EN ISO 8655)

Supplier: SIGMA ALDRICH MICROSCOPY

Ethidium homodimer is a red fluorescent dye. It cannot cross an intact plasma membrane, but can easily pass through a damaged plasma membrane. Ethidium homodimer is used to check membrane integrity. One molecule of EthD-1 will non-selectively bind four base pairs in dsDNA.

Supplier: Merck

Aquastar® standards for Karl Fischer titration can be used for monitoring and qualification of your Karl Fischer instruments, for checking and evaluating measuring results, and for performing titer determination of volumetric Karl Fischer reagents.

Supplier: VWR Chemicals

This product is not available in all countries. Please check with your local Avantor International office or supplier.

Supplier: Merck

MAS-100 air samplers are designed and manufactured to the most exacting standards. Ensuring compliant operation requires regular verification of the air flow of the instruments. This is because the air flow determines the impaction speed of the microbe-carrying particles from the air onto the agar surface and thus significantly influences the collection efficiency of your microbial air sampler. Regular checking of the air flow is therefore indispensable for your measurement reliability. 

Supplier: VWR Chemicals

Agarose RA™ is a general application agarose that provides good resolution and is cost effective for high volume users. It was developed specifically for quick checks of PCR products, plasmids preps, screening and cloning.

Supplier: VWR Collection

Pipetting accuracy is critical for successful experiments: A small inaccuracy in pipetting can result in important variations in results. The pipette check function of these touchscreen balances allows the user to check if the pipette is still accurate, as per directive ISO 8655 'Piston-operated volumetric apparatus - Gravimetric methods for the determination of measurement error' and customisable methods.

Supplier: Merck

Superior instrumental solution for reliable TLC plate analysis. It can analyse one or multiple plates up to an area of 20×20 cm. In addition, the device uses three LED light sources – white light (VIS), UV-A (366 nm), and UV-C (254 nm) to illuminate the plates from above in direct-light mode. It allows a quick visual check or a software-based analysis and quantification.

Supplier: VWR Collection

Laboratory safety showers should be tested once a month to check the functionality and the required water flow rate of 60 L/min. for emergency instances. This mobile test unit provides a very convenient and easy solution to test both body safety showers and handheld eye showers.

Supplier: LIOFILCHEM

Solution to hydrate samples collection swabs before surfaces checking.

Supplier: Merck

Potassium bromide is transparent from the near UV to long wave IR wavelengths. In IR-spectroscopy, solid samples which are difficult to melt or dissolve in any suitable IR-transmitting solvent, are analysed by grinding with potassium bromide powder, and pressing into a disc. This procedure has a high quality demand of the used potassium bromide. Potassium bromide Uvasol® is adjusted to a mean particle size of 150 μm. This is sufficient for the preparation of perfectly good pellets without the need for further pre-treatment and the associated risk of contamination. It also retains its powdery form over a period of years if stored in an airtight condition. Its physical suitability for pelletising is checked by a special application test and its chemical purity established by full spectrum FT-IR analysis.

Supplier: VWR Chemicals

Not suitable for extended storage. Check strength before use.

Supplier: IKA

These certified standard silicone oils can be used to check the measurement accuracy of ROTAVISC.

Supplier: EBRO

This data logger was developed to check the last rinsing water in the washer disinfector (WD). The measurement takes place during the cleaning program in the WD. An interruption restart of the machine after the water withdrawal is not necessary.

Supplier: VWR Collection

These sturdy, transparent plastic containers are made of translucent material. The translucent material allows users to check whether a container is empty or filled, even when stacked or closed.

Supplier: Avantor Fluid Handling

Calibration columns provide a simple, economical method for checking pump flow rates.

Supplier: JSP

PressToCheck™ twin filters for the Force®8 half mask and Force®10 full face mask facilitate instant and accurate checking of the face fit before entering the hazard area, without affecting the seal of the mask to the face.

Supplier: Thermo Fisher Scientific

Multi-Element Standard, ICP-MS Interference Check Standard solution B for 6020, Specpure®, Specpure®, Matrix: 5% HNO₃, Application: ICP-MS standards

Supplier: TCI

p-Xylene, Purity (GC): min. 99.0 %, Glass bottle

Supplier: VWR Chemicals

The catalase test can differentiate or identify microorganisms by checking their ability to produce catalase, an enzyme that protects microorganisms from toxic oxygen metabolites. Usually only aerobic microorganisms produce catalase.

Supplier: Testo

The testo 805 mini infrared thermometer is perfect for quick surface temperature checks, e.g. for food controls in supermarkets, for recording the temperature of incoming goods, or for scanning entire refrigerated sections.

Supplier: VWR Collection

Stainless steel masses adjusted to class 1 for precise checking and adjustment of electronic balances.

Supplier: VWR Chemicals

Supplied with certificate of analysis. Normally manufactured to order. Please check with customer services.

Supplier: LEICA MICROSYSTEMS

Reliable, reproducible, advanced cell checks. Make your cell culture experiments more reliable and consistent with AI-powered algorithms and analysis.

Supplier: EBRO

The easy-to-use software products are suitable for programming and read-out of Ebro® data loggers as well as for the evaluation of the measured values. For routine checks.

Supplier: Metro International

The stainless steel stem caster unit protect valuable materials and sensitive items from loss and they are ideal for use in wet environments. The heavy-gauge open wire construction keeps contents visible at all time making it easy to check inventory.

Supplier: LIOFILCHEM

The ESC (Easy Surface Checking) swab range includes a new generation of sampling devices for microbiological examination of surfaces, especially recommended for food and pharmaceutical industries.

Supplier: Brady

Temperature indicating labels are a cost-effective solution for temperature checks during maintenance or for trouble spotting during research and development. The labels extremely low profile allows for application on components, on industrial and household applications such as electric pumps, rotating equipment, brakes and refrigerators, in cold chains and hot spaces or in areas where measuring temperature becomes difficult or impractical.

Supplier: Hach

For accuracy checks in ammonia nitrogen determinations.