GB/T 13511.2-2025 English PDF

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GB/T 13511.2-2025: Assembled spectacles - Part 2: Power-variation prescription assembled spectacles
Status: Valid

GB/T 13511.2: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 13511.2-2025	199	Add to Cart	3 days	Assembled spectacles - Part 2: Power-variation prescription assembled spectacles	Valid
GB 13511.2-2011	209	Add to Cart	3 days	Assembled spectacles -- Part 2: Progressive power	Valid

Similar standards

GB/T 10810.3   GB/T 10810.2   GB/T 14214   GB/T 13511.4   GB/T 13511.1   GB/T 13511.3   

Basic data

Standard ID: GB/T 13511.2-2025 (GB/T13511.2-2025)
Description (Translated English): Assembled spectacles - Part 2: Power-variation prescription assembled spectacles
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Y89
Classification of International Standard: 11.040.70
Word Count Estimation: 10,152
Date of Issue: 2025-02-28
Date of Implementation: 2026-03-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 13511.2-2025: Assembled spectacles - Part 2: Power-variation prescription assembled spectacles

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
GB/T 13511.2-2025 English version. Assembled spectacles - Part 2.Power-variation prescription assembled spectacles ICS 11.040.70 CCSY89 National Standard of the People's Republic of China Replaces GB 13511.2-2011 Fitting glasses Part 2.Progressive focus prescription spectacles Assembledspectacle-Part 2.Power-variationprescriptionassembledspectacles Released on 2025-02-28 2026-03-01 Implementation State Administration for Market Regulation The National Standardization Administration issued

Table of Contents

Preface III Introduction IV 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Requirements 1 4.1 Main reference point vertex power 1 4.2 Cylindrical lens axis direction 1 4.3 Vertex power change 1 4.4 Nominal prism power 2 4.5 Thickness 2 4.6 Vertical position (or height) of the fitting point 2 4.7 Horizontal position of the fitting point 2 4.8 Tilt 2 4.9 Light transmittance 2 4.10 Appearance 2 4.11 Assembly Quality 2 5 Test methods 3 5.1 Test conditions 3 5.2 Main reference point vertex power 3 5.3 Cylindrical Axis Direction 3 5.4 Vertex power variation 3 5.5 Nominal prism power 3 5.6 Thickness 3 5.7 Vertical position (or height) of the fitting point 3 5.8 Horizontal position of the fitting point 3 5.9 Tilt 3 5.10 Light transmittance 4 5.11 Appearance 4 5.12 Assembly Quality 4 6 Mark 4 6.1 Permanent Marking 4 6.2 Non-permanent selective marking 4 7 Marking and packaging 4 7.1 Sign 4 7.2 Packaging 5

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 2 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 13511.2-2011 "Fitting spectacles - Part 2.Progressive focus". Compared with GB 13511.2-2011, except for the structure In addition to 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 thickness requirements have been changed (see 4.5, 4.5 of the.2011 edition); c) Added requirements and test methods for light transmittance (see 4.9 and 5.10); d) The requirements for assembly quality have been changed (see 4.11, 4.9 of the.2011 edition). Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document was proposed by China Light Industry Federation. This document is under the jurisdiction of the National Technical Committee on Optometry Standardization (SAC/TC596). This document was drafted by. Shanghai Essilor Optics Co., Ltd., Jiangsu Wanxin Optics Co., Ltd., Carl Zeiss Optics (Guangzhou) Co., Ltd. Ltd., Yingchang Group Co., Ltd., Star Vision (China) Group Co., Ltd., Zhejiang Weixing Optics Co., Ltd., Mingyue Lens Co., Ltd. Company, Hebei Chaoshili Technology Co., Ltd., Shenzhen Shengda Tongze Technology Co., Ltd., Qianye Glasses Chain Co., Ltd., Jiangsu Quanzhen Optical Science and Technology Co., Ltd., Donghua University, National Eyeglass Glass Enamel Products Quality Inspection and Testing Center, and China Optical Association. The main drafters of this document are. Zhang Xin, Song Zhen, Zhong Jianfei, Liu Dan, Hou Dongcai, Cheng Haolin, Wang Song, Xie Gongxing, Bian Hongfeng, Ye Jiayi, Kang Ying, Wang Helan, Gao Fan, Ye Dingkan, Li Jun, Sun Huanbao, Li Yajing, Cheng Yifei, Gong Miao, Zhang Shengtao. This document was first published in.2011 and this is the first revision.

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 standard supporting the mandatory standard, 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 2.Progressive focus prescription spectacles

1 Scope

This document specifies the requirements, marking, labeling and packaging of progressive prescription spectacles and describes the corresponding test methods. This document applies to progressive focus 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 the 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 10810.2 Spectacle lenses Part 2.Progressive focus 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 10810.2, GB/T 26397 and GB 45185 apply to this document.

4 Requirements

4.1 Vertex power of the main reference point 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 regulations. 4.2 Cylindrical Axis Direction Measure according to the method described in 5.3.The axial deviation of the lens cylinder shall comply with the requirements of GB 45185. 4.3 Change in Vertex Power The test is carried out according to the method described in 5.4.The change in the vertex power of the progressive focus glasses including the main reference point and the secondary reference point shall comply with Table 1. regulations. ......

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