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India updating ionomer resin standard

Bureau of Indian Standards publishes draft update to standard for ionomer resins in contact with foodstuffs, pharmaceuticals, and drinking water; accepting comments on the proposal until December 6, 2022

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Chemical metabolism in young and elderly

Scientists review studies demonstrating differences in drug pharmacokinetics between young and elderly people, recommend use of varying uncertainty factors for acceptable daily exposure calculations due to sensitivity differences

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RIVM studies argue applied maximum doses too low

Researchers from Dutch National Institute for Public Health and the Environment (RIVM) publish two peer-reviewed articles critically reviewing determination and application of maximum doses in toxicity studies; find that recent toxicity studies increasingly using unjustified low maximum doses, call for more clarity in testing guidelines

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Migration vs. solubility

New scientific study finds that in certain cases migration studies can be substituted by solubility measurements; modified OECD method shows solubility of select antioxidants, UV stabilizers in some food simulants is below SMLs