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Influencing parameters, resulting errors in measurement and corrective measures   Influencing parameter Effect Influenceable by Determinable by Variations in air pressure at adjustment versus use of the pipette up to 0,2 % Constructive steps taken by manufacturer Observing barometer at the measuring or working place Difference in density of the liquid to be…

Ideal Calibration Interval

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ZeroSigma How do we arrive at the Calibration interval for the pipettes Not to be too cute.  It depends! It depends, On Your Budget, on your lab’s requirements on quality, On Number of pipettes and number of people using it, On Usage, How often, how long, by how many? Etc. But The industry average…

An Introduction

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On these pages ZeroSigma will provide Byte sized Knowledge from Years of experience on Liquid handling, especially on Pipette calibration, repair and maintenance. Let’s call them Nano Blog. These posts will be short by design. But when you need a longer exposition, we will be glad to expound on the rational, the details…

For reliable, dedicated and cost-effective pipette repair and calibration, come to Zero Sigma. Our primary function is to repair, calibrate and offer certification for all kinds of pipettes. Every variety of pipettes which service goes through the same procedure. This promotes a high degree of uniformity. The Pipette Calibration and validation procedure developed…

  Types of Pipettes Pipetting techniques Errors Terminology used Factors affecting accuracy of pipetting Proper techniques of pipetting Types of Pipettes                     Air Displacement Pipettes The plunger pushes out air and liquid is aspirated in. Less accurate, especially the continuously adjustable pipette. Should expect 1.5…