ISO 16900-11:2025 呼吸用保護具 — 試験方法および試験装置 — Part 11:視野の決定 | ページ 2

Foreword

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This document was prepared by Technical Committee ISO/TC 94, Personal safety — Personal protective equipment, Subcommittee SC 15, Respiratory protective devices.

This second edition cancels and replaces the first edition (ISO 16900-11:2013), which has been technically revised.

The main changes are as follows:

• equipment for RPD headforms specified to use illuminated eyes;
• mounting the RPD in 8.3 more specified;
• Figure 1 changed to use headforms according to ISO 16900-5;
• Table 1 the total visual field score (VFS) and the number of critical dots were added;
• application of uncertainty of measurement former Annex A was deleted;
• figures revised where appropriate.

A list of all parts in the ISO 16900 series can be found on the ISO website.

Introduction

This document is intended as a supplement to the respiratory protective devices (RPD) performance standards. Test methods are specified for complete devices or parts of devices. If deviations from the test method given in this document are necessary, these deviations will be specified in the performance standards.

1 Scope

This document specifies the laboratory test method for determining the field of vision for a respiratory protective device (RPD).

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.

3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 16972 and the following apply.

ISO and IEC maintain terminology databases for use in standardisation at the following addresses: