Today’s sophisticated and ever-changing technologies have made the world smaller and opened up new ways of communicating. The publication of a revised International Standard ensures that we are all “talking”…
With a mandate to manage everything from transport to sewerage, to public lighting and civil protection, it’s no wonder citizens expect a lot from their local governments. Newly revised guidelines help…
By 2030, water scarcity will have displaced between 24 and 700 million people, according to UN Water, the United Nations coordinating body on water issues. World Water Day is focusing on Sustainable Development…
Chlorination is necessary to prevent epidemics of waterborne disease however excess chlorination is wasteful, produces harmful disinfection byproducts, exacerbates corrosion and causes deterioration in aesthetic qualities, leading to consumer complaints. Residual chlorine must be continuously monitored to prevent both under- and over-chlorination and factors including pH, temperature and fouling must be considered as these also affect the disinfectant strength of residual chlorine. Standard methods used by water utility companies to determine residual chlorine concentration in drinking water distribution systems are appraised and found to be unsuitable for continuous monitoring. A selection of newly developed methods for residual chlorine analysis are evaluated against performance criteria, to direct research towards the development of chlorine sensors that are suitable for use in water systems. It is found that fouling tolerance in particular is generally not well understood for these selected sensor technologies and that long-term trials in real systems is recommended.
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Gone are the days when the workplace was built around a fairly straightforward structure, consisting of employer, employee, customer. The winds of technological change may be sweeping away traditional…
Introduction The meeting was held at the National Physical Laboratory, Teddington, UK, on 9th and 10th October 2018. This was the fourth such meeting, with the general aim of bridging the so-called ‘valley of death’ in translating research on graphene into meaningful products. The speakers were primarily academics and those from companies manufacturing graphene. One…
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This paper provides a database of mechanical properties for most of the commercially available platinum alloys currently in use for jewellery purposes. The alloys were tested for mechanical properties through tensile and microhardness testing in the as-cast and hot isostatically pressed conditions. Microstructural characterisations were performed using scanning electron microscopy (SEM).
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Sensors are vital to process and product control across a large number of industries. A network of sensors is used for monitoring and controlling machinery, systems and processes in chemicals, pharmaceuticals, biotechnology, energy, water, wastewater, oil, gas, plastic, paper, food and beverages among others. Technologies for Sensing The technologies are as varied as the applications….
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Whether you are being admitted to the hospital, getting medical treatment or simply doing your annual check-up, take a look at some of the specific ways ISO standards are changing healthcare for the better…
While some countries have made great progress toward universal health coverage, half the world’s population are still unable to obtain the health services they need. ISO’s collaboration with the World Health Organization…