GB/T 28217-2025 English PDF

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GB/T 28217-2025: Lens edgers
Status: Valid

GB/T 28217: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 28217-2025	239	Add to Cart	3 days	Lens edgers	Valid
GB/T 28217-2011	229	Add to Cart	3 days	Lens edger	Valid

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GB/T 30002   GB/T 38009   GB 31892   GB/T 10810.2   GB/T 10810.1   

Basic data

Standard ID: GB/T 28217-2025 (GB/T28217-2025)
Description (Translated English): Lens edgers
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Y89
Classification of International Standard: 11.040.70
Word Count Estimation: 11,111
Date of Issue: 2025-05-30
Date of Implementation: 2025-12-01
Older Standard (superseded by this standard): GB/T 28217-2011
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 28217-2025: Lens edgers

---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.
ICS 11.040.70 CCSY89 National Standard of the People's Republic of China Replaces GB/T 28217-2011 Eyeglass lens edge grinding machine Released on 2025-05-30 2025-12-01 Implementation State Administration for Market Regulation The National Standardization Administration issued

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 replaces GB/T 28217-2011 "Edging Machines for Spectacle Lenses". Compared with GB/T 28217-2011, except for structural adjustments and editing In addition to the changes in performance, the main technical changes are as follows. --- Changed the scope (see Chapter 1, Chapter 1 of the.2011 edition); --- Changed the relevant definitions (see Chapter 3, Chapter 3 of the.2011 edition); --- Change "lens processing range" to "processing range", change the requirements and test methods (see 4.1 and 5.1, 4.1 of the.2011 edition and 5.1); --- Change "processing lens accuracy" to "processing accuracy" (see 4.2 and 5.2, 4.2 and 5.2 of the.2011 edition); --- Change "curvature of lens chamfer edge" to "lens chamfer", change requirements and test methods (see 4.2.1 and 5.2.1,.2011 4.2.1 and 5.2.1 of the.2014 edition); --- Change "lens dimension error" to "lens dimension", change the requirements and test methods (see 4.2.2 and 5.2.2, 4.2.2 and 5.2.2 of the.2011 edition); ---Change "shape similarity between lens and profiling template or frame" to "shape similarity of lens", change requirements and test methods (See 4.2.3 and 5.2.3, 4.2.3 and 5.2.3 of the.2011 edition); ---Change "lens size adjustment range" to "lens size adjustment range and accuracy", and change the requirements and test methods. Method (see 4.2.4 and 5.2.4, 4.2.4 and 5.2.4 of the.2011 edition); --- Added lens processing reference point deviation requirements and test methods (see 4.2.5 and 5.2.5); --- Added scanning function requirements and test methods for the front frame and lining of the spectacle frame (see 4.2.6 and 5.2.6); --- Added lens centering and upper suction cup functional requirements and test methods (see 4.2.7 and 5.2.7); --- Changed the function and performance requirements of edge grinding machines (see 4.3, 4.3 of the.2011 edition); --- Changed the anti-loosening and protection requirements and test methods (see 4.4.1 and 5.4.1, 4.4.1 and 5.4.1 of the.2011 edition); --- Added electrical safety requirements and test methods (see 4.4.2 and 5.4.2); --- Added requirements and test methods for the locking device of the grinding chamber door (see 4.4.3 and 5.4.3); --- Added environmental applicability requirements and test methods (see 4.4.4 and 5.4.4); --- Changed the appearance quality requirements (see 4.5, 4.5 of the.2011 edition); --- Added maintenance and servicing requirements and test methods (see 4.6 and 5.6); --- The cooling function test method has been changed (see 5.3.2, 5.3.2 of the.2011 edition); --- Changed the lens clamping mechanism test method (see 5.3.3, 5.3.3 of the.2011 edition); --- Changed the grinding wheel running performance test method (see 5.3.5, 5.3.4 of the.2011 edition); --- The continuous working performance test method has been changed (see 5.3.6, 5.3.6 of the.2011 edition); --- Change "batch" to "inspection lot" and change the requirements (see 6.1, 6.1 of the.2011 edition); --- Changed the product inspection requirements (see 6.2, 6.2 of the.2011 edition); --- Changed the product marking (see 7.1.1, 7.1.1 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., Ningbo Mingxing Technology Development Co., Ltd., Ningbo Fario Optics Technology Development Co., Ltd. Development Co., Ltd., Yingchang Group Co., Ltd., Donghua University, Xinlian Optical Technology Co., Ltd., National Eyeglass Glass Enamel Products Quality Inspection and Testing Center, Zhejiang Quality Science Research Institute. The main drafters of this document are. Gu Weiqiang, Ye Jiayi, Chen Guang, Chen Shaoxiong, Xu Suizhao, Chen Yuchen, Liu Yibing, Hou Dongcai, Zheng Delong, Wang Wenxing and Wang Likun. This document was first published in.2011 and this is the first revision. Eyeglass lens edge grinding machine

1 Scope

This document specifies the requirements, inspection rules, marking, packaging, transportation and storage of ophthalmic lens edge grinding machines and describes the corresponding tests. method. This document applies to the production, inspection, sales and maintenance management of edge grinding machines used in fitting eyeglasses. This document is not intended for large industrial edge grinding machines.

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 4793 Safety technical specification for electrical equipment for measurement, control and laboratory use GB/T 13384 General technical requirements for packaging of electromechanical products GB/T 14710 Environmental requirements and test methods for medical electrical appliances GB/T 38004 Spectacle frame measurement system and terminology GB/T 42125.1 Safety requirements for electrical equipment for measurement, control and laboratory use Part 1.General requirements

3 Terms and definitions

The terms and definitions defined in GB/T 38004 and the following apply to this document. 3.1 Edge grinding machines Equipment used for cutting (grinding) edges, polishing, etc. of lenses. 3.2 Patternedgers An edge grinding machine that uses a physical template to determine the shape of the lens for processing. 3.3 Patternlessedgers An edge grinding machine that determines the shape of the lens for processing by scanning the shape of the front frame of the eyeglass frame and setting parameters without using a template.

4 Requirements

4.1 Processing scope The types of materials that can be processed and the diameter range of the processed lenses should be clearly stated. The machining accuracy shall meet the requirements of 4.2.1 and 4.2.2. ......

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