What circumstances can affect the pH levels and, in turn, the water quality in South Africa? Pictured: acid mine water from a coal mine in Mpumalanga. 4 Key Factors that affect pH in Water: 1. The concentration of carbon dioxide in the water Carbon dioxide (CO2) enters a water body from a variety of sources, …
Explaining the science of colour in the elevator Normally, when colleagues at the Tintometer® Group initially explain what the company does, the typical response is a fairly blank look. This makes the standard ‘elevator pitch’ somewhat challenging, unless you want to ride up and down a few times. Yet when you begin to explain the importance …
Dedicated biofilm detection and control should be enlisted and instilled as a fundamental and non-negotiable requirement for really effective QA programs, argues SA food safety consultant, Dr Robin Kirkpatrick. As if the large basket of challenges to optimal quality assurance were not already daunting, there is another key one to consider: the proverbial ‘elephant in …
What is the ideal pH level of water and when it it too alkaline or too acidic? This article explains what pH in water is and what effects the pH level will have on water quality. What options are there for measuring pH in water? The drinking water quality standards that are legislated by government …
The Felix Avocado Quality Meter has been upgraded to provide increased accuracy and reliability, so that avocado growers can more effectively estimate the ripeness of avocadoes through the electronic measurement of dry matter. Upgraded Technology: The technology behind the Avocado Quality Meter has been one of the biggest technology leaps in the scientific measurement of …
Measuring the salinity or the dissolved salt content of water is important as aquatic organisms, livestock, and crops thrive at different salinity levels. Freshwater has a salinity value of less than 0.5 ppt while seawater has an average salinity of 35 ppt. Introduction Salinity is the measure of the amount of dissolved salts in water. …
A simple extraction procedure using water is recommended for measuring the pH of non-aqueous solutions containing water-immiscible solvents. Water is added and mixed thoroughly with the sample. After reaching equilibrium, the solvent phase is separated and the pH of the water phase is then measured. Introduction 1. Solvents Liquids can serve as solvents to dissolve …
In Africa, power outages (euphemistically known as load shedding) are common. Other disasters, such as floods, more severe storms or large wildfires are also on the increase, mostly due to man’s intrusion and global warming. How do you plan for and handle food safety in the midst of a blackout? 9 Most Helpful Planning Tips …
NEW, award-winning technology! Simple, low-cost test to detect organic materials associated with microbial bacteria in water. Carbotect™ is a basic, water quality test that can be used by any worker. It will provide an immediate answer to the question, “Is this water or equipment safe to use right now? No special skills, electricity or capital …
What is the Pasteurization Process? Pasteurization is named after the French scientist Louis Pasteur, who found that the process of heating wine in the 1880s would inactivate bacteria / pathogens that caused spoilage. The pasteurization process was primarily associated with milk, but is now used to extend the shelf life of most beverages, including …
Don’t have the capital finance available to invest in quality water testing or laboratory equipment? Selectech now offers you a cost-effective option to hire equipment with the goal of owning the equipment in a 12 or 24-month period. The equipment will be delivered fully calibrated (with a calibration certificate, if appropriate to the instrument). Call-out …
Why not experiment with easy pH science techniques to increase plant growth? This article will simply explain what soil pH is; what effect soil pH has on nutrient availability and plant growth; how to measure it and optimise soil conditions. It is vital to know the pH of soil, because most South African soils are …
