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The various GMP (good manufacturing practice) guidelines and international ISO standards regarding GMP cleanrooms are complex and often seem contradictory in their guidance, leading to confusion and, at times, misinterpretation. In the case of routine environmental controls, there is little prescriptive guidance and it is up to the cleanroom owner to devise an appropriate control plan. In the generally prescriptive GMP industry, this lack of direct instructions leaves users perplexed.
We started the series of different contact angles with a static contact angle. The static contact angle offers a fast way of characterizing the wettability of the solid. The static contact angle can, however, be problematic as there is no one static contact angle for any real surfaces. In a typical experiment, you measure the static contact angle on several different spots on the same
Being one of the key components in cleaning products, surfactants are in the limelight when it comes to enhancing the performance of a cleaning formulation. Contributing with key properties such as foaming, wetting of the surface to be cleaned, emulsifying the soils and keeping the dirt dispersed in solution to prevent re-deposition on surface, there are several performance
“The International Conference on Harmonization of Technical Requirements for Registration of Pharmaceuticals for
Human Use (ICH) is a unique project that brings together the regulatory authorities of Europe, Japan and the United
States and experts from the pharmaceutical industry in the three regions to discuss scientific and technical aspects
of product registration.” From the official website for ICH, www.ich.org.