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QBT2506-2017

Chinese Standard: 'QBT2506-2017'
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QB/T 2506-2017English150 Add to Cart 0--15 minutes. Auto immediate delivery. Uncut finished spectacle lenses. Optical hard resin lenses Valid QB/T 2506-2017
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QB/T 2506-2017
QB
NATIONAL LIGHT INDUSTRY STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
ICS 11.040.70
Classification No.. Y 89
Record No.. 57027-2017
Replacing QB 2506-2001
Uncut Finished Spectacles Lenses –
Optical Hard Resin Lenses
眼镜镜片 光学树脂镜片
ISSUED ON. JANUARY 09, 2017
IMPLEMENTED ON. JULY 01, 2017
Issued by. Ministry of Industry and Information Technology of PRC
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative References ... 4
3 Terms and Definitions ... 5
4 Classification ... 7
5 Requirements ... 7
6 Test Methods ... 11
7 Inspection Rules ... 14
8 Marking and Package ... 15
9 Transportation and Storage ... 17
Appendix A (Normative) UV Transmittance and Blue Light Transmittance
Calculated Spectral Function ... 18
Appendix B (Normative) Spectral Distribution of Spectral Radiation in the
Infrared Band ... 20
Appendix C (Normative) Spectral Luminous Efficacy Function in Visible Light
Band ... 22
Foreword
This Standard was drafted as per the rules specified in GB/T 1.1-2009.
This Standard replaced QB 2506-2001 Optics Resin Spectacles Lenses.
Compared with QB 2506-2001, besides the editorial modifications, this Standard has
the major technical changes as follows.
--- Increase the material properties of photochromic spectacles lenses and
progressive power spectacles lenses;
--- Add lens transmittance and classification, lens blue light transmittance, lens
infrared transmittance;
--- Add the lens light-resistant irradiation performance;
--- Adjust the lens tolerance of refractive index into ±0.005;
--- Adjust the lens abbe number tolerance into ±5%.
This Standard was proposed by China Light Industry Council.
This Standard shall be under the jurisdiction of National Center for Standardization of
Glasses.
Drifting organizations of this Standard. Carl Zeiss Optical (Guangzhou) Co., Ltd.,
Donghua University, China National Inspection & Testing Center for Ophthalmic Optics
Glass and Enamel Products, Shanghai Yishilu Optical Co., Ltd., Shanghai Conant
Optics Co., Ltd., Bizhen Optical (Shanghai) Co., Ltd., Jiangsu Wanxin Optical Co., Ltd.,
Shanghai Leez Optical Glasses Co., Ltd., Shanghai Mingyue Optics Glasses Co., Ltd.,
Rodenstock Trading (Shanghai) Co., Ltd., and Riccino (Xiamen) Optical Inc.
Chief drafting staff of this Standard. Tang Lingling, Nie Xiaoling, Huang Hongliang,
Zhang Peng, Cao Genting, Ouyang Xiaoyong, Tian Ling, Ye Jiayi, Xie Gongxing, Jin
Xiang, Gao Qi, Wu Guoqing, and Zhou Xianjian.
The historical edition replaced by this Standard is as follows.
--- QB 2506-2001.
Uncut Finished Spectacles Lenses -
Optical Hard Resin Lenses
1 Scope
This Standard specifies the terms and definitions, classification, requirements, test
methods, inspection rules, marking, package, transportation, storage of optical hard
resin lenses.
This Standard is applicable to the spectacles lenses made of polymer materials with
optical property.
2 Normative References
The following documents are essential to the application of this document. For the
dated documents, only the versions with the dates indicated are applicable to this
document; for the undated documents, only the latest version (including all the
amendments) are applicable to this document.
GB/T 2828.1 Sampling Procedures for Inspection by Attribute - Part 1. Sampling
Schemes Indexed by Acceptance Quality Limit(AQL) for Lot-by-Lot Inspection
GB/T 8427 Textiles - Tests for Color Fastness - Color Fastness to Artificial Light.
Xenon Arc Fading Lamp Test
GB 10810.1 Uncut Finished Spectacle Lenses - Part 1. Single-Vision and
Multifocal Lenses
GB 10810.2 Uncut Finished Spectacle Lenses - Part 2. Progressive Power
Spectacle Lenses
GB 10810.3 Spectacle Lenses and Related Eye Wear-Transmittance
Specifications and Test Methods
GB 10810.4 Uncut Finished Spectacle Lenses - Part 4. Specifications and Test
Methods for Anti-Reflective Coatings
GB 10810.5 Uncut Finished Spectacle Lenses – Part 5. Requirements of
Abrasion-Resistant for Spectacle Lends Surface
GB/T 26397 Ophthalmic Optics – Terminology
such mark and the actual polarized surface direction shall be ±3°.
5.4.2.4 Claimed transmittance
5.4.2.4.1 When the lens claims that its visible light transmittance is of x%, then its
visible light transmittance τv shall be no less than (x-0.5)%.
5.4.2.4.2 When the lens cla......
Related standard:   QB/T 5283-2018  QB/T 5277-2018
   
 
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