ISO 19818-1:2021
Eye and face protection - Protection against laser radiation - Part 1: Requirements and test methods
This document is applicable to protectors intended to provide protection against accidental exposure to laser radiation within the wavelength range 180 nm to 1 mm. It specifies the requirements, test methods and marking. Protectors intended for adjustment work on lasers are included in the scope of this document and are marked in the same way as other protectors, but selection of appropriate eyewear for a specific application is a choice of the user. Laser protective filters used as viewing windows in laser equipment machinery or incorporated into optical instruments such as operating microscopes and loupes that may be used for deliberate viewing of laser radiation as part of their function are outside the scope of this document.
Laser radiation in the wavelength range below 180 nm is absorbed in air, therefore eye and face protection should not be required.
This document is applicable to devices intended for patient protection during medical laser procedures except for treatment in the periorbital area. Guidance on eye protectors for patients (including those used for periorbital treatment) is given in ISO/TR 22463.
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements for the protector
4.1 Performance requirements
4.1.1 Laser pulse and exposure duration
4.1.2 Optical density (OD)
4.1.3 Transmittance to short pulses
4.1.4 Resistance category (RC)
4.1.5 Luminous transmittance
4.1.6 Dynamic protection
4.1.7 Field of view
4.1.8 Refractive power of filters and protectors
4.2 Construction of protectors
4.3 Robustness of protectors
4.3.1 Basic requirement
4.3.2 Optional requirements
4.4 Quality of material and surface of filters
4.4.1 Material and surface defects
4.4.2 Scattered light
4.5 Environmental stability
4.5.1 General
4.5.2 Filter and protector resistance to heat and humidity
4.5.3 Stability to ultraviolet radiation
4.5.4 Resistance of filters and frames to ignition by contact with hot surfaces
4.6 Marking
4.6.1 Marking requirements
4.6.2 Marking syntax and examples of marking
4.7 Manufacturer’s instruction and information
4.8 Requirements not mandatory for protectors worn by patients during medical or aesthetic treatment with lasers
5 Test methods
5.1 General
5.2 Optical density
5.3 Transmittance of short pulses
5.4 Resistance of filters and frames to laser radiation
5.5 Luminous transmittance of filters
5.6 Scattered light
5.7 Resistance to elevated temperature
Bibliography
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements for the protector
4.1 Performance requirements
4.1.1 Laser pulse and exposure duration
4.1.2 Optical density (OD)
4.1.3 Transmittance to short pulses
4.1.4 Resistance category (RC)
4.1.5 Luminous transmittance
4.1.6 Dynamic protection
4.1.7 Field of view
4.1.8 Refractive power of filters and protectors
4.2 Construction of protectors
4.3 Robustness of protectors
4.3.1 Basic requirement
4.3.2 Optional requirements
4.4 Quality of material and surface of filters
4.4.1 Material and surface defects
4.4.2 Scattered light
4.5 Environmental stability
4.5.1 General
4.5.2 Filter and protector resistance to heat and humidity
4.5.3 Stability to ultraviolet radiation
4.5.4 Resistance of filters and frames to ignition by contact with hot surfaces
4.6 Marking
4.6.1 Marking requirements
4.6.2 Marking syntax and examples of marking
4.7 Manufacturer’s instruction and information
4.8 Requirements not mandatory for protectors worn by patients during medical or aesthetic treatment with lasers
5 Test methods
5.1 General
5.2 Optical density
5.3 Transmittance of short pulses
5.4 Resistance of filters and frames to laser radiation
5.5 Luminous transmittance of filters
5.6 Scattered light
5.7 Resistance to elevated temperature
Bibliography