ISO 19734:2021 Eye and face protection — Guidance on selection, use and maintenance

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Eye and face protection — Guidance on selection, use and maintenance

1 Scope

This document gives guidance to specifiers and users on the control of eye and face hazards including physical, mechanical, chemical, optical radiation and biological and on the selection, use and maintenance of eye and face protectors.

This document applies to

— occupational use,

— tasks that are performed similarly to those in an occupation but not in the workplace, e.g. "do-it-

yourself", and

— schools, educational and research establishments.

This document does not apply to eye and face protection for

— ionizing radiation,

— low frequency radio waves,

— microwaves,

— sports or vehicular usage, and

— sunglasses for general (not occupational) use – see ISO 12312-1.

NOTE The ISO 18527 (all parts) sets requirements for eye protectors for some sports.

Brief advice on protection when using lasers is included but for detailed advice, see IEC/TR 60825-14.

This document is neither a whole nor partial substitute for risk assessment, which is an essential part of any eye and face protection programme.

Although this document has been written to help specifiers and users, any recommendations in this document are to be interpreted as guidance only and not intended to replace any national regulatory requirements. Risk assessment is the sole responsibility of the employer and not the PPE manufacturer or its authorised representative.

2 Normative references

The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

ISO 4007, Personal protective equipment — Eye and face protection — Vocabulary

3 Terms a nd definiti ons

1) 2)

For the purposes of this document, the terms and definitions given in ISO 4007 and the following apply .

1) The terms and definitions for risk and hazard have been included here for the reader's convenience.

2) The abbreviation PPE means personal protective equipment.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https:// www .iso .org/o bp

— IEC Electropedia: available at http:// www .electropedia .org/ NOTE ISO/IEC Guide 51:2014, Clause 4, states: The term “safe” is often understood by the general public as the state of being protected from all hazards. However, this is a misunderstanding: “safe” is rather the state of being protected from recognized hazards that are likely to cause harm. Some level of risk is inherent in products or systems. The use of the terms “safety” and “safe” as descriptive adjectives is avoided when they convey no useful extra information. In addition, they are likely to be misinterpreted as an assurance of freedom from risk. The recommended approach is to replace, wherever possible, the terms “safety” and “safe” with an indication of the objective – for example, the phrase “protective spectacles” should be used in preference to “safety spectacles”.

3.1

hazard

potential source of harm

[SOURCE: ISO/IEC Guide 51:2014, 3.2]

3.2

risk

combination of the probability of occurrence of harm and the severity of that harm

Note 1 to entry: Note 1 to entry: The probability of occurrence includes the exposure to a hazardous situation, the occurrence of a hazardous event and the possibility to avoid or limit the harm.

[SOURCE: ISO/IEC Guide 51:2014, 3.9]

4 General

4.1 Structure of the human eye

See Figure 1.

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