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GB/T 13511.1-2025Assembled spectacles - Part 1: Single-vision and multifocal prescription assembled spectacles (English PDF)

配装眼镜第1部分:单焦和多焦定配眼镜

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Issued by

State Administration for Market Regulation, China National Standardization Administration

Level / Type

National · Recommended

Issue date

February 28, 2025

Implementation date

March 1, 2026

Scope

GB/T 13511.1-2025 is the English-translated version of 配装眼镜第1部分:单焦和多焦定配眼镜.

GB/T 13511.1-2025 — This document specifies the requirements, marking, labeling and packaging of monofocal and multifocal prescription spectacles and describes the corresponding test methods.

This document applies to single-focus and multifocal custom-made glasses with a light transmittance of Class 0, which are made according to the glasses processing order.

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Document preview — GB/T 13511.1-2025

National Standard of the People's Republic of China

ICS
11.040.70
Classification
Y 89

Issued by: State Administration for Market Regulation, China National Standardization Administration

Contents

  • Preface
  • Introduction
  • 1 Scope
  • 2 Normative references
  • 3 Terms and Definitions
  • 4 Requirements
  • 4.1 Vertex power
  • 4.2 Cylindrical lens axis direction
  • 4.3 Variation of the vertex power of multifocal lenses
  • 4.4 Center point position
  • 4.5 Nominal Prism
  • 4.6 Thickness
  • 4.7 Position and tilt of multifocal lenses
  • 4.8 Light transmittance
  • 4.9 Appearance
  • 4.10 Assembly quality
  • 5 Test methods
  • 5.1 Test conditions
  • 5.2 Vertex power
  • 5.3 Cylindrical Axis Direction
  • 5.4 Variation of the vertex power of multifocal lenses
  • 5.5 Center point position
  • 5.6 Nominal prism power
  • 5.7 Thickness
  • 5.8 Position and tilt of multifocal lenses
  • 5.9 Light transmittance
  • 5.10 Appearance
  • 5.11 Assembly Quality
  • 6 Permanent marking of fixed-point single-focal prescription glasses
  • 7 Marking and packaging
  • 7.1 Signs
  • 7.2 Packaging
  • Appendix A (Informative) Comparison of structure numbers between this document and ISO 21987:2017

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents" Drafting.

This document is Part 1 of GB/T 13511 "Fitting spectacles". GB/T 13511 has been published in the following parts.

--- Part 1: Single-focal and multifocal prescription spectacles;

--- Part 2: Progressive focus prescription glasses;

--- Part 3: Single vision presbyopia spectacles;

--- Part 4: Multifocal and progressive presbyopic lenses.

This document replaces GB 13511.1-2011 "Fitting spectacles - Part 1: Single vision and multifocals" and is consistent with GB 13511.1-2011.

In addition to structural adjustments and editorial changes, the main technical changes are as follows.

a) The scope has been changed (see Chapter 1, Chapter 1 of the 2011 edition);

b) The terms and definitions have been changed (see Chapter 3, Chapter 3 of the 2011 edition);

c) Added requirements for the axial direction of the cylindrical lens when the absolute value of the cylindrical lens vertex power is 0.12m-1~0.25m-1 (see 4.2);

d) Added the position requirements for fixed-point single-focus lenses (see 4.4);

e) The requirements for assembly quality have been changed (see 4.10, 5.8 of the 2011 edition);

f) Added the requirement for permanent marking of fixed-point single-vision lenses (see Chapter 6);

g) The relevant requirements for presbyopic spectacles have been deleted [see 5.6.6~5.6.9 and 7.1c), 7.2b) of the 2011 edition].

This document is modified to adopt ISO 21987:2017 "Ophthalmic optics - Complete eyeglass lenses".

Compared with ISO 21987:2017, this document has many structural adjustments. The structural number changes between the two documents are shown in the table below.

See Appendix A.

The technical differences between this document and ISO 21987:2017 and their reasons are as follows.

--- Added applicable conditions (see Chapter 1) to adapt to the standard system of GB/T 13511;

--- Removed normative references to ISO 7944, ISO 8429, ISO 8598-1, ISO 8624, ISO 8980.2 and ISO 14889 (See Chapter 3, 5.2, 5.3.1, 5.3.3, 5.3.6, 6.5, and Chapter 8 of ISO 21987) to adapt to my country's standard system;

--- Replaced ISO 8980.1 (see Chapter 3, 4.9.1, 5.10.1, 5.11) with the normative reference GB/T 10810.1 to adapt to our the technical conditions of the country and increase operability;

--- ISO 13666 (see Chapter 3) has been replaced by the normative reference GB/T 26397 to adapt to my country's technical conditions and increase the Operability;

--- Added normative references to GB/T 14214 (see 4.9.2, 5.10.2) to adapt to my country's technical conditions and increase operability;

--- Added normative references to GB 45184 (see 4.5.2, 4.8, 5.2, 5.6.2, 5.9) to adapt to my country's technical conditions and increase the Operability;

--- Added normative references to GB 45185 (see 4.1, 4.2, 4.4, 5.3, 5.5, 5.9) to adapt to my country's technical conditions and increase the Operability;

--- Changed the terms and definitions (see Chapter 3, see Chapter 3 of ISO 21987:2017) to adapt to my country's technical conditions and increase the Operability;

--- Deleted the general rules for classification, manufacturing of complete eyeglass lenses and optical requirements (see Chapter 4, 5.2, 5.3.1) to adapt to my country's standard system;

--- Deleted the horizontal prism deviation diagram and vertical prism deviation diagram (see Figure 1 and Figure 2 of ISO 21987:2017).

As Figures 1 and 2 are consistent with the requirements of Table 2 of this document, no graphical representation is required;

---Deleted the deviation of the vertex power of the main reference point of the progressive focus lens, the prism power requirements of progressive focus glasses, and the axial deviation of the polarized lens and non-permanent markings (see Table 2, 5.3.6, 5.6, 7.2 of ISO 21987:2017) to adapt to my country's standard system;

--- Changed the lens reference point thickness requirements (see 4.6, 5.4 of ISO 21987:2017) to adapt to my country's technical conditions;

--- Added light transmittance requirements (see 4.8) to adapt to my country's technical conditions;

--- Changed the assembly quality requirements (see 4.10, Chapter 8 of ISO 21987:2017) to adapt to my country's technical conditions;

--- Changed the marking and packaging (see Chapter 7, Chapter 9 of ISO 21987:2017) to adapt to my country's technical conditions;

--- Deleted the reference to this standard (see Chapter 10 of ISO 21987:2017) to adapt to my country's technical conditions.

The following editorial changes were made to this document.

--- To be consistent with my country's technical standard system, the name of the standard is changed to "Fitting spectacles - Part 1: Single-focal and multifocal prescription spectacles";

--- Deleted the informative Appendix C.

Introduction

Fitted glasses include custom-made glasses and presbyopia glasses, which are suitable for vision correction of people with various refractive errors or presbyopia.

The purpose of GB/T 13511 "Fitting glasses" is to standardize the fitting of glasses.

Production and use, improve the quality and safety of fitted glasses, and protect the vision health of consumers.

GB/T 13511, as a recommended national standard supporting the mandatory standards, consists of four parts.

--- Part 1: Single-focus and multifocal prescription glasses. The purpose is to ensure the quality and safety of single-focus and multifocal prescription glasses and to improve Work level.

--- Part 2: Progressive focus custom-made spectacles. The purpose is to ensure the quality and safety of progressive focus custom-made spectacles and improve the processing level.

--- Part 3: Single-vision presbyopia spectacles. The purpose is to improve the product quality of single-vision presbyopia spectacles and protect the visual health and Safe to use.

--- Part 4: Multifocal and progressive presbyopia lenses. The purpose is to improve the product quality of multifocal and progressive presbyopia lenses and ensure the quality of presbyopia lenses.

The visual health and safety of use of the elderly.

Fitting glasses

Part 1: Monofocal and multifocal prescription spectacles

1 Scope

This document specifies the requirements, marking, labeling and packaging of monofocal and multifocal prescription spectacles and describes the corresponding test methods.

This document applies to single-focus and multifocal custom-made glasses with a light transmittance of Class 0, which are made according to the glasses processing order.

2 Normative references

The contents of the following documents constitute essential clauses of this document through normative references in this document.

For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to this document.

GB/T 10810.1 Spectacle lenses Part 1: Single focus and multifocal GB/T 14214 General requirements and test methods for spectacle frames GB/T 26397 Ophthalmic Optics Terminology GB 45184 Safety technical specification for components of ophthalmic products GB 45185 Safety technical specification for finished eyeglasses for ophthalmic products

3 Terms and definitions

The terms and definitions defined in GB/T 10810.1, GB/T 26397, GB 45184 and GB 45185 and the following terms and definitions apply to this document.

Assembled spectacles Finished glasses composed of lenses with vertex power and frames.

Note. Prescribed glasses are divided into custom-made glasses and presbyopia glasses.

prescription assembled spectacles Fitted glasses are made according to the glasses processing order or specific requirements.

4 Requirements

4.1 Vertex power

Measure according to the method described in 5.2.The vertex power deviation of each principal meridian plane of the lens and the vertex power deviation of the cylindrical lens shall comply with GB 45185.

Regulation.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 14 pages — is available in the English PDF.

Referenced standards

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