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Volumetric measurement

Volumetric measurement plays a central role in the laboratory. The user has to determine the degree of accuracy required for each measurement. Based on this, he can choose the appropriate volumetric instrument.

Reliable measurements require the use of precision instruments and their proper handling. To provide a better understanding of volumetric instruments and their operation, this booklet explains the most important terms for their classification and handling, and illustrates them by using BRAND laboratory equipment as examples.

The brochure 'Volumetric Measurement in the Laboratory' is designed to give the reader a quick overview of volumetric instruments. It is not intended to replace the operating manuals of the liquid handling instruments described. By all means, read the operating manuals supplied with these instruments before use – for your own safety and success.

Please do not hesitate to contact us if you have any further questions on the subject of volumetric measurement.

 

Please click on the preferred language for your download:

Graduated pipette, BLAUBRAND®, Class AS, DE-M, type 1, 10:0.1 ml, partial delivery, cotton plug end

AR-GLAS®. DIN EN ISO 835. Type 1 (zero on top). Calibrated to deliver (TD, Ex). Waiting time 5 seconds.All BLAUBRAND® graduated pipettes are delivered with batch number and enclosed one batch certificate per packing unit of the manufacturer. On demand also available with individual certificate, USP Individual certificate or DAkkS calibration

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HandyStep® touch, DE-M, inclusive universal AC adapter and shelf/rack mount

Repetitive pipettes are the first choice when it comes to efficient dispensing of long series. Positive displacement pipettes are often the right solution for pipetting viscous media. The new stepper HandyStep® touch from BRAND combines both features. With the touchscreen display, you conveniently swipe back and forth between functions and always have an overview of the essential information on your work steps. Operation is easy, even with protective gloves on. And speaking of easy, the days of manually changing tips are over. On the HandyStep® touch, lightly tapping on the Eject icon on the display is enough to eject the tip. The HandyStep® touch repetitive pipette automatically recognizes the volume of the new BRAND PD- Tips II. This saves time and reduces the risk of error. Tips from many other manufacturers can also be used, providing maximum flexibility. Charging is easy and efficient: simply place the HandyStep® touch in the inductive charging stand and the battery automatically starts charging. Overview - Touchscreen operation with intuitive menu navigation in English, German, Spanish, French and Chinese - HandyStep® touch with the features multi-dispensing, auto-dispensing and pipetting; HandyStep® touch S with the additional features sequential dispensing, multi-aspiration and titration - Automatic size detection of BRAND PD-Tips II - Compatible with PD-Tips prior to the PD-Tips II generation and with tips from many other manufacturers: for example, Encode™ tips, Repet-Tips®, Combitips®, Combitips® plus, Combitips® advanced (the above-mentioned brands are property of their respective owners) - Automatic tip ejection - Variable volume adjustment from 1.0 μl to 50 ml - Easy to clean thanks to smooth surface without grooves and edges - Inductively rechargeable Einsatzgrenzen: Operating temperature of instrument and reagent should be between +15 °C and +40 °C (59 °F to 104 °F) (other temperatures upon request) Vapor pressure up to 500 mbar Viscosity: At 50 ml PD-Tip: 20 mPa s; at 5 ml PD-Tip: 260 mPa s; at 1,25 ml PD-Tip: 977 mPa

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Dispensette® S Organic, Analog-adjustable, DE-M, 0.5-5ml, w/o recirculation valve

Whether you are dispensing solvents, acids, alkalis or saline solutions – the Dispensette® S bottle-top dispenser makes it easy, safe and efficient.With both the Dispensette® S and Dispensette® S Organic, you will always have the right dispenser at hand for a wide range of media. For efficient volume adjustment, you can choose between digital and analog adjustment, or fixed volume. Do you dispense long series, sterile applications or moisture-sensitive media? With numerous accessory options, the Dispensette® S also offers efficient solutions for special applications. Dispensette® S Organic (yellow color-code): Ideal for dispensing organic solvents, including chlorinated and fluorinated hydrocarbons (e.g., trichlorofluoroethane and dichlormethane), acids like concentrated HCl and HNO3 (except HF), trifluoroacetic acid (TFA), tetrahydrofuran (THF) and peroxides. Analog-adjustable Model: Rapid and safe volume setting with new internal scalloped track. Simple calibration adjustment with a supplied tool. Einsatzgrenzen: Operating temperature from +15 °C to +40 °C (from 59 °F to 104 °F) of instrument and reagent Vapor pressure up to max. 600 mbar. Aspirate slowly above 300 mbar, in order to prevent the liquid from boiling Kinematic viscosity up to 500 mm² /s (dynamic viscosity [mPas] = kinematic viscosity [mm² /s] x density [g/cm³) Density up to 2.2

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Transferpette® S, 0.1-1 µl, adjustable volume, D-1, DE-M

The Transferpette® S air displacement pipette allows you to work efficiently and ergonomically with both small and large volumes. Low operating forces and a short stroke ensure relaxed pipetting, even during long pipetting series. Due to its perfect ergonomics, the Transferpette® S provides a comfortable grip in any hand position, whether you are right- or left-handed, or have big or small hands. Changing your grip is not necessary, since the microliter pipette provides true one-hand operation: set the volume, pipette, eject the tip.The volume-change protection is also easy to operate with gloves on and protects your set volume against accidental adjustment. The Transferpette® S also features Easy Calibration technology, which makes calibration a breeze. Calibration can be carried out without tools. A compatibility table shows which tips fit which device, so that you always order the correct pipette tips.Einsatzgrenzen: Operating temperature of instrument and reagent should be between +15 °C and +40 °C (59 °F to 104 °F) (other temperatures upon request) Vapor pressure up to 500 mbar Viscosity: 260 mPa s For viscous media, the speed must be adjusted if necessary.

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