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About This Item


Full Description

The objective of this standard is to provide reasonable and adequate guidance on the test methods, protocols and specifications for devices used to provide eye protection from lasers and laser systems. Testing procedures are provided in this document to ensure that eyewear, windows, and barriers maintain their specified level of protection throughout the life of the products. Such protective devices include laser eye protective devices or instrument filters, laser window filters, and laser area protective barriers, screens or beam blocking curtains. Depending on the protective device, laser type, temporal mode of operation and wavelength(s), different test methods may be required. (soft bound, 60 pgs.)

The recommended stepwise procedure for using this standard is as follows:
  • Determine the type of protective equipment (device); eyewear, barrier, or window.
  • Determine the filter technology used; absorptive, reflective, or hybrid.
  • Determine the material type of eyewear/windows under study: material, metal, plastic, glass, hybrid, etc.
  • Determine the appropriate laser or laser system: continuous wave, Q switched, or sub-nanosecond, or some combination of pulse durations.
  • Determine the wavelength or wavelength band of the laser protection.
  • Determine the specified optical density or barrier threshold level as identified by the manufacturer at the wavelength in question.

Document History

  1. LIA Z136.7-2020

    Testing and Labeling of Laser Protective Equipment

    • Most Recent
  2. LIA Z136.7-2008


    Testing and Labeling of Laser Protective Equipment

    • Historical Version