GENERAL PRODUCTS Difference between free and total chlorine Chlorine is a common chemical used by for disinfection. High levels of chlorine, whether in liquid or produced by electrolysis of salt, is used in a variety of industries including produce washing, food processing, and the disinfection of medical equipment due to its’ effectiveness as a biocide.
Hanna Instruments prides itself on its ability to help customers easily and accurately measure commonly required elements essential to their field including total and free chlorine. It is important to note the difference between free and total chlorine. Free chlorine refers to available forms of chlorine, such as Hypochlorous acid and Hypochlorite, which are added to solutions for disinfection. When free chlorine combines with contaminants, it becomes combined chlorine, otherwise known as chloramines. Once chlorine is combined, it has a decreased ability to disinfect. The measure of total chlorine will always be higher than free chlorine, as it is the sum of both free chlorine and combined chlorine. Thus, measuring free chlorine is a direct indication of the effectiveness of sanitising solution. Hanna Instruments offers a wide range of instrumentation for measuring chlorine. From Chemical Test Kits (CTK) and Checker Handheld Colorimeters to single and Multiparameter field meters and bench tops, Hanna has an accurate, affordable solution for nearly any free and total chlorine application.
Free & Ultra High Range Total Chlorine Portable Photometer Free Chlorine Range 0.00 to 5.00mg/L (as Cl2) Total Chlorine Range 0 to 500mg/L (as Cl2) HI97771 is an advanced portable photometer for the measurement of free and ultra-high range total chlorine in water. This meter offers a superior optical system that utilises a reference detector and narrow band interference filters for extremely fast and repeatable measurements
These products are for everyone: home pool owners, maintenance services, pool installation companies, public and private pools. The range includes chlorine controllers, photometers, benchtops, checkers, & chlorine test kits.
Free Chlorine Portable Photometer Free Chlorine Range 0.00 to 5.00mg/L (as Cl2). The HI97701 has an innovative optical system that offers superior performance in accuracy, repeatability, and the short amount of time it takes to perform a measurement.
HANNA INSTRUMENTS JHB: (011) 615 6076 CPT: (011) 946 1722 DBN: (031) 701 2711 hanna@hanna.co.za www.hanna.co.za
Powerful & precise molecular pathogen detection Food companies, service labs and government regulators rely on the Hygiena BAX system which uses PCR (Polymerase Chain Reaction) technology to detect unwanted bacteria in raw ingredients, finished products and environmental samples. The BAX system is the leading PCR instrument in ISO-17025 labs worldwide. Whether you are looking for the power of PCR in a small footprint or a high-throughput solution for your laboratory, Hygiena’s BAX
system offers powerful technologies with two convenient options. The BAX system X5 and Q7 instruments feature two types of PCR detection technologies - real-time and end-point assays. BAX systems are automated and configured for convenience, minimising operator handling and improving ease-of-use. Systems provide all the necessary components for PCR polymerase, nucleotides and target-specific primers with tableted reagents and optimised media. PCR tablets feature an internal positive control ensuring every test is run properly. The closed tube system prevents contamination. In addition, outstanding sensitivity, specificity, and accuracy round out the system’s compelling value to its users. MICROSEP (PTY) LTD Frances Renwick Tel: (011) 553 2300 Fax: (011) 553 2400 frances.renwick@microsep.co.za www.microsep.co.za
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Analytical Reporter | Issue 4 | 2021
COVID-19
Far UVC Africa launches in SA successfully Far UVC Africa recently formalised their launch in South Africa with two media and distributor events in Johannesburg and Cape Town, the first COVID-19 pathogensafe events in the country. The launches showcased a number of products from the company’s range, and guests were able to view and engage with the units, demonstrating first-hand how the far-UVC light sanitising technology and units worked - such as the hand sanitising unit and the gateway unit, which disinfects the whole body within eight seconds. One of the expert speakers, Doctor Kgosi Letlape, executive director of Tshepang Trust and President of the African Medical Association, was able to share some facts about the success in this technology. He mentioned the key issue that has been associated with the spread of infections, even from Greek times, was hygiene. “UVC technology has been used extensively for many years, however, tragedy has inspired people to come up with more discoveries. They’ve now been able to bring us to a wavelength of ultra-violet light that will be able to do the job of sufficient disinfecting without harming humans.” Conrad Kullmann, managing director at Far UVC Africa mentioned how one of the biggest issues around such airborne diseases concerns indoors, not outdoors. He discussed how the UK are looking into improving quality of safety and sanitation within the indoor spectrum with the hopes that far-UVC is the next best approach. His presentation demonstrated back to the 2017 discussion hosted by Dr David Brenner, director for Radiological Research at Columbia University, who developed far-UVC light technology, and highlighted how we as humans are dealing with a war on superbugs and infections. Although quite controversial, recent published scientific research has shown how far-UVC sanitising light technology has the ability to kill all coronaviruses, H1N1, influenza, bacteria, SARS etc. and is starting to be rolled out via global
distribution to high-traffic areas such as retail outlets, office buildings and even the US Department of Defense. Dr Letlape described this type of innovation as “game-changing”. The idea is to stay ahead of what we are fighting against, while ensuring people feel safe in any occupied space. The narrow (222nm) wavelength far-UVC light has shown no risk when people are exposed to the chemical free ultra-violet. It also works well in conjunction with other standard safety sanitising methods when it comes to disinfecting.
FAR UVC AFRICA Tel: 082 578 3755 conrad@faruvcafrica.com wwwfaruvcafrica.com
A far-UVC sanitation gateway unit
