EN 170 Legacy Ultraviolet Filter Reference
EN 170:2002 is the legacy transmittance and marking reference for ultraviolet filters in occupational eye protection. It has been withdrawn; EN ISO 16321-1:2022+A1:2025 is the current general reference for new occupational eye/face protection.
UVUV filter performanceAlways verify the actual product label, manufacturer technical documentation and conformity markings.
EN 170:2002 is the legacy transmittance and marking reference for ultraviolet filters in occupational eye protection. It has been withdrawn; EN ISO 16321-1:2022+A1:2025 is the current general reference for new occupational eye/face protection.
Identification of existing EN 170-marked UV-filter protectors and comparison with the current series when selecting new products.
Do not rely on a legacy filter code alone; verify the actual UV source, filter performance, protector type and current conformity documentation together.
A class code is not a selection decision by itself. Interpret it together with task-specific risk assessment and manufacturer data.
EN 170:2002 is a withdrawn legacy filter reference.
Current general reference for new occupational eye/face protection.
UVUV filter performanceMatched to the actual UV source and product declaration.
Location varies by manufacturer and design. These are the first places to check; final verification must use the actual product and manufacturer documentation.
The marking should be legible, durable and match the product.
EN 170:2002Withdrawn UV-filter reference
EN ISO 16321-1:2022+A1:2025Current general reference for new occupational eye/face protection
Occupational protection is selected for actual optical and mechanical hazards.
Lens colour alone is not evidence of spectral protection.
Verify current product standard and manufacturer spectral performance.
Use for quick pre-checks. It does not replace certification, competent inspection or task-specific risk assessment.
Is lens clean and optically serviceable?
Treating a dark lens alone as verified UV protection.
Verify current product standard and manufacturer spectral performance.
Is lens clean and optically serviceable?
Is manufacturer performance adequate for the actual UV source?