Textile products and nanotechnologies. Guidance on tests to simulate nanoparticle release. Skin exposure Ingestion-build-228203 BS 9997 provides a framework

BS 9997 provides a framework for an enhanced management system level as described in BS 9999:2017

This European Standard specifies requirements and describes test methods for manual triggering and stop devices of CO2-

Part 4: Fixed ladders

open access underground and tramway systems

Inclusion of four building type definitions and amendments to the gas protection scores recommended for different characteristic situations

Textile products and nanotechnologies. Guidance on tests to simulate nanoparticle release. Skin exposure Ingestion-build-228203 BS 9997 provides a frameworkWhat is this standard about? The effects of synthetic nanoparticles on human health and the environment are still poorly understood and therefore uncertain. In particular, it is unclear in which areas nanoparticles dose caused negative effects in the organism or in the environment (unknown dose response relationship). The underlying toxicological mechanisms and possible effects of nanoparticle exposure over long periods of time are poorly understood.