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anamed Elektrophorese GmbH, Germany

Since 2001 anamed Elektrophorese GmbH has been among the leading manufacturers of precast gels and buffers for vertical polyacrylamide electrophoresis. The user-oriented offer of the three company founders – who were previously able to garner industry experience in leading positions – was a success more

Fritsch GmbH, Germany

FRITSCH is one of the internationally leading manufacturers of application-oriented laboratory instruments for sample preparation and particle sizing. Here a short view of the FRITSCH instrument ranges: - Mills for crushing, micro-milling, mixing, homogenising of hard-brittle, fibrous, elasti more

PSS Polymer Standards Service GmbH, Germany

PSS Polymer Standards Service GmbH is the specialist in the field of chromatographic analysis of macromolecules. The range of products and services includes all components required for comprehensive GPC/SEC, Interaction Polymer Chromatography (IPC) and 2D analysis of synthetic and natural macromolec more

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Products Standards

Highest quality precision quartz and glass cuvettes for all applications

Verify your Spectrophotometer using Starna Certified Reference Materials – trusted by end-users worldwide for their excellent quality and reliability more

A Wish Come True: Ready-To-Use Solutions, Reagents, Salts and Standards

As a specialist for ready-to-use reagents, salts and standards for chemical analyses in the laboratory, Bernd Kraft® maintains more than 10,000 research laboratory chemicals in its portfolio more

Create Your Own Calibration Gas Standards

At a constant temperature, the device emits the compound through its permeable portion at a constant rate more

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  • Chemical Process Engineer (m/f/d)

    We are looking for a full-time position at our location Rheinmuenster as: Develop and document best practices, engineering tools, and templates to be used by Process Engineers, Production Engineers, Process Control Engineers, and other technology disciplines Develop and document most effective more

  • Supply Chain Manager Third Party Management (f/m/d)

    We would like to fill the following vacancy as soon as possible: Manages outsourced production, labelling, packaging and distribution of IMP’s (Investigational Medicinal Products) at established pharmaceutical CMO`s Sourcing of new qualified CMO´s for IND’s (Investigational New Drugs) Full more

Publications Standards

  • Random number generators go public

    On 10 July, researchers in Chile will unveil an online public random number service. Later in July, the U.S. National Institute of Standards and Technology (NIST) will launch its Randomness Beacon as a permanent service, upgrading a pilot program that began in 2013. Brazil, too, is planning a beacon more

  • Prevalence-induced concept change in human judgment

    Do we think that a problem persists even when it has become less frequent? Levari et al. show experimentally that when the “signal” a person is searching for becomes rare, the person naturally responds by broadening his or her definition of the signal—and therefore continues to find it even when it more

  • Toward a sustainable materials system

    Global annual resource use reached nearly 90 billion metric tons in 2017 and may more than double by 2050. This growth is coupled with a shift of materials extraction from Europe and North America to Asia. In 2017, 60% of all materials were extracted in Asia, and extraction is expected to rise subst more

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Authors Standards

  • Dr. Klaus Fritsch

    Klaus Fritsch is Manager Compliance of the Global Business Area “Laboratory Weighing” within Mettler-Toledo. He has been with Mettler-Toledo since 2005, acting as senior metrologist and consulting the industry to achieve compliance with applicable regulations when using weighing instruments. He rece more

Definition

Caesium standard

Caesium standard A caesium standard is a primary frequency standard in which electronic transition s between the two hyperfine ground state s of caesium-133 atom s are used to control the output frequency. By the definition of the SI second ... more

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