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Consumer safety sits at the heart of many certifications and approvals. For product safety – and fire safety in particular – Underwriters Laboratories Inc. (UL) has led the field since …

Valves are part of our everyday life – in water taps, bicycle valves, or as 3-way mixing valves in heating systems. The latter regulate the flow rates of liquids or …

How a Pipette Works In every laboratory, small liquid volumes frequently need to be measured and dispensed with care. For this purpose, pipettes are used. However, there are a few …

Prostheses, implants and suture materials all have one requirement in common: they should cause as little adverse effect as possible on the surrounding tissue and on the human body as …

Any substance that is not a pure substance is a mixture of substances. Since very few of the things that surround us are pure substances, the separation of mixtures is …

Anyone who has worked in a lab knows that pipettes are indispensable for handling liquids. Depending on the design, they either transfer liquids simply or dispense them with precision. Laboratory …

Honey, water, ketchup and a starch solution represent four liquids with four very different flow behaviours. Honey flows slowly and thickly, but it can be made thinner by gentle heating. …

Chemical products have become indispensable to everyday life. Plastic household items, medicines, detergents and specialised chemicals inside high-tech goods all make our lives easier, more comfortable and more liveable. Both …

In plant and mechanical engineering, in drive technology, or in precision mechanics, information on the friction behavior of the materials used is essential, with the coefficient of friction being a …

Plastics used in medical technology and pharmaceuticals are classified into six biocompatibility classes in the United States Pharmacopeia (USP), the US pharmacopoeia. To assign elastomers and other polymeric materials to …