Comment on “Which fraction of stone wool fibre surface remains uncoated by binder? A detailed analysis by time-of-flight secondary ion mass spectrometry and X-ray photoelectron spectroscopy” by Hirth et al., 2021, RSC Adv., 11, 39545, DOI: 10.1039/d1ra06251d

Abstract

A thin organic layer (binder, oil, adventitious carbon) on a stone wool fibre surface is incomplete and inhomogeneous and leaves the bare fibre surface available for dissolution in lung fluid.