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What is the number issued by OSHA found on all safety glasses?

  1. Z85

  2. Z90

  3. Z87

  4. Z93

The correct answer is: Z87

The correct answer is Z87, which is the designation for safety glasses that meet the standards set by the Occupational Safety and Health Administration (OSHA) for eye protection in various work environments. The Z87 marking indicates that the eyewear has undergone testing to ensure it provides adequate protection against specific impacts, chemical exposure, and other hazards that workers may face. This certification is crucial for ensuring worker safety and compliance with regulations, as it helps employers identify appropriate safety stocks. Eyewear displaying the Z87 marking is recognized as meeting the minimum performance criteria for occupational safety. The other options, like Z85, Z90, and Z93, are related to other aspects of eye and face protection or different standards but do not pertain specifically to the general certification of safety glasses under OSHA guidelines. Therefore, Z87 is the standard designation to look for when considering safety glasses intended for use in environments with potential eye hazards.