Ohaus Compact Scales help
Children’s Hospital Boston

Read how Ohaus CS-series compact scales are helping treat children with epilepsy in a hospital in Boston, Massachusettes. See how Ohaus's scales are being used to cafefully monitor ketogenic diets, tracking amounts of fats and carbohydrates to the exact gram.
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Ultrasonic Transesterification of
Oil to Biodiesel

In a time when the price of petroleum is ever-fluctuating and the strenuous quest to find a suitable alternative energy sources is key, some are already using ultrasconics to provide a way to covert vegetable oil and animal fats to biodiesel fuel. Learn more about how this process is maintained in a safe and effective manner with the use of ultrasonic transesterification.
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Take the challenge,
see if you’re right...

Chlorine in Drinking Water

Challenge: Liam is a laboratory technician working for Hydrolabs in Sulis Springs. He is performing a test designed to monitor the amounts of free chlorine in drinking water in a 250 ml beaker. He used an amperometric sensor and filled the sensor with fresh KCl solution. The membrane in the sensor was one month old. He calibrated his sensor at 11:00 a.m. and retrieved his sample from the refrigerator where it was stored. After he set his water sample out he began to set up the rest of the lab, including his colorimetry test kit. Around 1:00 p.m. he returned and started testing his sample of water for free chlorine. He used his colorimetry device to compare his results with the sensor. His results were erratic. 

Pondering what to do next, he then changed the fill solution and replaced the membrane cap. He checked the pH and then recalibrated his sensor again. The second test run yielded results that were similar to when he ran with the colorimetry device. What was the action that most likely fixed Liam’s situation?

1. Testing the pH of the water. If the pH is too high or too low, then there is no way he can get accurate results.
2. Recalibrating his sensor.
3. Changing the electrolyte fill solution.
4. Replacing the membrane cap. 

Respiratory Protection: Preparing Workplaces for an Influenza Breakout

An influenza outbreak in a workplace can deliver a devasting blow to productivity and morale. Learn ways to best protect your place of business from an outbreak and how to maintain operations should a pandemic occur.
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