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ANSI Z87.1 vs. EN166: What Are the Differences?

ANSI Z87.1 and EN166 are two of the most widely recognized safety eyewear standards in the world. While both aim to protect users from eye injuries, they are developed by different organizations and have different testing methods, markings, and certification requirements.

Feature ANSI Z87.1 EN166
Region United States Europe
Standard Organization American National Standards Institute European Committee for Standardization
Main Purpose Occupational eye and face protection Personal eye protection in Europe
Impact Testing High Impact (Z87+) or Basic Impact Multiple impact levels (S, F, B, A)
Lens Marking Z87, Z87+ Optical class and impact codes
Certification Manufacturer self-certification with compliance testing CE conformity requirements in Europe
Common Markets USA, Canada European Union and many international markets

The Target Markets

Z87.1

Selling primarily in the United States.

Supplying industrial customers in North America.

Meeting OSHA-related workplace requirements.

EN166

Selling in Europe.

Requiring CE-marked PPE.

Serving customers who need detailed hazard classifications.