Stability Testing Chambers in the Pharmaceutical Industry

Stability testing chambers are enclosures used to assess the effects of pre-specified environmental circumstances on biological materials and industrial/electronic components. The most common use of these stability chambers (sometimes referred to as environmental chambers) is that of stand-alone specimen testing for decomposition and reduced efficiency under various temperature and humidity ranges.

Small Scale Stability Testing

Stability chambers were originally large and immobile but the demands of modern testing applications have led to smaller, more portable units. This is often called "Small Scale Stability Testing" and is commonly used in Food and Pharmaceutical product testing.

Using wireless technology provides convenient wireless test kits complete with calibrated sensor caps, logger caps and related logging software compliant software.

How Stability Testing Works

1. Humidity capsules are used to control the humidity within the test chamber

2. The humidity capsule is pierced and placed in the test chamber

3. The test material is placed in one of the other compartments within the test chamber

4. Sensor caps incorporate a temperature and humidity sensor on the inside of the cap

5. The sensor cap is also used to seal the test chamber

6. A logger cap which contains a memory chip and short range transceiver is connected to the sensor cap and is used to collect and transmit data wirelessly to the Control Software

7. Before connection the logger cap must first receive the test settings by docking the logger cap on the basestation which is connected to a computer or laptop.

8. The logger cap is then connected to the sensor cap to initiate the test. The unit is then incubated at the required temperature for the require time.

9. The temperature and humidity test conditions are then transferred wirelessly to the Control Software for presentation and reporting.

Each test monitored in its own micro-humidity chamber and humidity settings can be varied according to the testing requirement. Some Stability Testing are sold complete with customisable control software and built in offsite backups which comes in handy if when testing a large number of samples or when many locations need to share testing data quickly.

If possible try to source your stability testing chambers from a provider that also offers repair and calibration services. The integrity of the data is based on properly calibrated and fully functional units.

Amebis Ltd specialises in small scale stability testing chambers for the pharmaceutical industry. Manufactured in Ireland and available to Europe and the US. http://www.amebisltd.com.

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Moisture Sensors And Their Importance In The Agricultural Industry

It is not necessary at all to be an expert in agriculture or to have green fingers in order to know that water is essential for a healthy plant growth. Water provides plants and crops with the ability to absorb the minerals and nutrients that are present in the soil and, together with the appropriate sun light do the process of photosynthesis we have all studied at school.

Whenever plants receive the amount of water they require ?they grow healthily but when they are deprived of water they suffer from stress, turn yellower, dry out and finally die. For any of us who has a small balcony with a couple of plants it can sometimes be trickier to know exactly when a plant needs water and, what is even more difficult, determine the correct amount of water it needs. Thus, we touch the soil to see if it is wet or dry and end up pouring some water on it at least twice a week.

It is easy to imagine that, if knowing when a small plant in a flower pot needs watering is difficult, knowing when and how much a crop or a large garden needs watering is even more complex. If crops are not taken care properly, they can get lost and farmers can lose a lot of money. Therefore, it is of utmost importance to know when and how much to water them. In such complex scenario, there is no room for guessing. And this is exactly why moisture analysers, also usually referred to as moisture sensors, play such a significant role. In fact, many a time the experts that are in charge of large crops or gardens usually pair their moisture sensors with their irrigation channels. Thus, when the moisture analyser detects that the soil is dry enough to require watering, the irrigation system is automatically triggered.

Moisture sensors or humidity analysers are highly sensitive devices that estimate the humidity present in a certain product or item, whether it is potato chips, coffee beans, house paint or soil. In the particular case of soil humidity analysers, these devices report how much water is present in the soil by means of determining the soil's ability to transmit electricity. The wetter the soil is, the more electricity the soil will be able to transmit. Thus, it is really easy for agriculture experts to read the reports and know if the crops needs to be watered and, if they do, how much water they need. If these sensitive devices are used in combination with an automatic irrigation system such as water sprinklers or similar technologies, the irrigation system can be automatically triggered when the humidity sensor detects that the ability of the soil to transmit electricity is below the optimum standard and then are ?automatically stopped once the sensor determines that the standard has been reached again.

Eduard Writing for Moisture Sensors

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