The Series 8900 Ethylene Oxide Analyzer combines the selectivity of gas chromatography with the sensitivity of a Photoionization Detector (PID) providing interference free response to Ethylene Oxide (EtO) at levels below 0.05 ppm. This analytical method is referenced in OSHA’s “Occupational Exposure to Ethylene Oxide: Final Standard” 29 CFR Part 1910. The system documents exposure levels including: time-weighted averages (TWA), short-term exposure limits (STEL) and instantaneous alarms.

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The importance of oxygen to the health of the cornea is well known; as a result contact lens users will prefer a product with proven high oxygen performance. Lens manufacturers advertise their various product specifications, including oxygen permeability and transmission, usually to Eye Care Professionals who can then advise patients on the most suitable choices for their particular needs. The permeability is referred to as Dk and the transmission Dk/t. These properties are derived from:

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The International Conference on Harmonization, comprising councils representing the pharmaceutical industry, as well as scientists and authorities, defines the demands on functionality, performance and documentation for stability tests in the pharmaceutical industry in its ICH guidelines. Europe, Japan and the USA agreed to common stability tests. The objective of these tests is to gather information in order to make recommendations regarding the stability of substances or pharmaceuticals.

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UV light, temperature, humidity have a strong influence on the quality of pharmaceutical products. The preparate can lose its efficacy through inaccurate storage conditions. In the pharmaceutical industry, API and medicines are tested under long-term conditions to determine shelf life.

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An air flow which is temperature or air conditioned to achieve exactly the requested set values flows continuously through the test chamber. The air duct fitted to the chamber rear comprises all components required for air make-up. The chamber air is taken out of the test space by means of the recirculating air system, then it is passed via the fin-type heat exchanger where the chamber air is cooled down if necessary. An electrical heater installed in air flow direction behind the heat exchanger heats the recirculated air if required.

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