852 | EN ISO 16321:2022 EYE AND FACE PROTECTION FOR OCCUPATIONAL USE: The EN 166:2001 standard is being replaced as the standard by which eye protectors will be tested and certified, by the new standard EN ISO 16321:2022 at the end of 2025. All current CE certificates under EN 166 remain valid until their expiry date as stated on the certificate. The advantage of the new EN ISO 16321:2022 standard is, it can be adopted worldwide and improves transparency and consistency in the eye protection market worldwide. EN ISO 16321:2022 Part 1: EN ISO 16321-1 General requirements Part 2: EN ISO 16321-2 Additional requirements for protectors used during welding and related techniques Part 3: EN ISO 16321-3 Additional requirements for mesh protectors Main changes relate to overhauled testing methods that lead to updated product requirements and revised lens and frame markings. EN ISO 16321:2022 only applies to plano and prescription glasses for occupational use or use in educational establishments. NEW AND CHANGED PARAMETERS Eyewear can now be tested on 6 new, different-sized head forms. The head form is now specified on the certificate and user instructions. Luminous transmittance: new requirements for lenses and face shields that differ (lenses’ LT >80%, face shields’ LT must be not less than 75%). Optical requirements • Field of view – new testing methods to increase objectivity. It now includes new criteria for suitability for driving • Scattered light – new testing method which uses a different measurement method (the wide-angle scatter) • Luminous transmittance – new requirements depending on the type of ocular (LT >80%, or LT must be not less than 75%) Physical requirements • New requirements on headband and harness if these are present • New requirements for mechanical strength (impact test) STANDARDS MANDATORY REQUIREMENTS EN 166:2002 STANDARD NEW EN ISO 16321 STANDARD High speed impact spectacles F: 45m/S C: 45m/S High speed impact goggles B: 120m/S D: 80m/S High speed impact face shields A: 190m/S E: 120m/S OPTIONAL REQUIREMENTS EXISTING Resistance against fogging Resistance to surface damage by fine particles Protection against gases and fine dust particles Protection against large dust particles Protection against molten metals and hot solids NEW High mass impact Protection against radiant heat Protection against streams of liquids Lens assessment for anti-reflective coatings Use in explosive atmospheres Chemical resistance
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