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In the 1980s, the European Union began harmonising regulatory requirements. In 1989, Europe, Japan, and the United States began creating plans for harmonisation. The International Conference on Harmonisation of Technical Requirements for Registration of Pharmaceuticals for Human Use (ICH) was created in April 1990 at a meeting in Brussels.
Section 5: Other Test Guidelines; Guidelines are numbered with three digit numbers, the section number being the first number. Sometimes guidelines are suffixed with a letter. Guidelines are under constant review, with guidelines being periodically updated, new guidelines being adopted, and guidelines being withdrawn.
With stability testing, pharmaceutical industry inspects the quality of drug substances and drug products as per the guidelines outlined by US Food and Drug Administration and International Council for Harmonisation of Technical Requirements for Pharmaceuticals for Human Use to make sure that they retained the quality over the period of time.
A series of unsuccessful and ineffective clinical trials in the past were the main reason for the creation of ICH and GCP guidelines in the US and Europe. These discussions ultimately led to the development of certain regulations and guidelines, which evolved into the code of practice for international consistency of quality research.
Carbon sampling was the first method of technology-assisted dye tracing that was based on the absorption of dye in charcoal.Charcoal packets may be placed along the expected route of the flow, later the collected dye may be chemically extracted and its amount subjectively evaluated.
Common industrial dyes of varying colors and types. Industrial dye degradation is any of a number of processed by which dyes are broken down, ideally into innocuous products. [1] Many dyes, specifically in the textile industry such as methylene blue or methyl red, are released into ecosystems through water waste. [2]
Triarylmethane dyes are synthetic organic compounds containing triphenylmethane backbones. As dyes, these compounds are intensely colored. They are produced ...
Colour fastness is a term—used in the dyeing of textile materials—that characterizes a material's colour's resistance to fading or running.Colour fastness is the property of dyes and it is directly proportional to the binding force between photochromic dye and the fibre.