ISO 16321-4:2025

This document specifies minimum requirements for light-weight protectors designed to provide protection for the eyes or eyes and face from biological hazards, such as pathogenic micro-organisms in human or other animal bodily fluids that can deposit onto the face or eyes. NOTE 1 Typical scenarios for use include healthcare, retail and transport settings. This document specifies requirements for both single-use (disposable) and re-usable (disinfectable) products or components. This document applies to all afocal (plano) and prescription lensed protectors and their components. This document does not cover the respiratory equipment required for protection against aerosols, which can be used in conjunction with these eye protectors, and for which other standards apply. This document does not apply to — protectors intended for protection from specific hazards, e.g. mechanical hazards, harmful artificial optical radiation, dusts, molten metals, heat, flame, hot solids, harmful gases, vapours (refer to ISO 16321-1 to ISO 16321-3), — protectors specifically for sports (refer to the ISO 18527 series), — protectors for lasers (refer to ISO 19818-1), and — respiratory protection against aerosols (refer to ISO/TS 16975-4). NOTE 2 Guidance related to the specific selection, use and maintenance is provided in Annex A. NOTE 3 Where eye and face protection is incorporated in protective equipment, such as a hood, full face respirators, powered air purifying respirators (PAPR) hoods and headtops, the relevant requirements of this document apply to the components providing eye and face protection.