HOME   Cart(0)   Quotation   About-Us Policy PDFs Standard-List
www.ChineseStandard.net Database: 189760 (18 Oct 2025)

GB/T 14148-2011 English PDF

US$259.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 14148-2011: Glass blank of ophthalmic lenses
Status: Valid

GB/T 14148: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 14148-2011English259 Add to Cart 3 days [Need to translate] Glass blank of ophthalmic lenses Valid GB/T 14148-2011
GB/T 14148-1993English359 Add to Cart 3 days [Need to translate] Glass blank of ophthalmic lenses Obsolete GB/T 14148-1993

PDF similar to GB/T 14148-2011


Standard similar to GB/T 14148-2011

GB/T 10810.3   GB/T 10810.2   GB/T 14214   GB/T 10810.1   

Basic data

Standard ID GB/T 14148-2011 (GB/T14148-2011)
Description (Translated English) Glass blank of ophthalmic lenses
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard Y89
Classification of International Standard 11.040.70
Word Count Estimation 11,158
Date of Issue 2011-06-16
Date of Implementation 2011-12-01
Older Standard (superseded by this standard) GB/T 14148-1993
Quoted Standard GB/T 2828.1-2003; GB 10810.3
Regulation (derived from) Announcement of Newly Approved National Standards No. 9 of 2011
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary This standard specifies the ophthalmic lens blank product technical requirements, test methods, inspection rules and signs, bags, transport and storage. This standard applies to direct compression molding molten glass several commonly used ophthalmic lens blanks can also be used for other similar products in use and reference.

GB/T 14148-2011: Glass blank of ophthalmic lenses

---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.
Glass blank of ophthalmic lenses ICS 11.040.70 Y89 National Standards of People's Republic of China Replacing GB/T 14148-1993 Ophthalmic lens blank Issued on. 2011-06-16 2011-12-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Table of Contents

Preface Ⅰ 1 Scope 1 2 Normative references 1 3 Terms and definitions 4 Category 2 5 Requirement 2 6 Test Method 3 7 Inspection Rule 4 8 signs, packaging, transportation and storage 4 Appendix A (normative) calculation of solar ultraviolet transmittance and the spectral distribution of the constant light transmittance of 5

Foreword

This standard replaces GB/T 14148-1993 "ophthalmic lens blanks." This standard and GB/T 14148-1993 compared to the main changes are as follows. --- No technical requirements and classification, a single "qualified" technical indicators. --- Refractive technical requirements no longer apply only to 1.523 ophthalmic lens blank, and revised as follows. n is the refractive index of tolerance ± 0.002. Technology --- UV spectral region of GB 10810.3 required by the revised standard. --- Material and surface quality of the technical requirements of the standard reference GB 10810.1 modification. Appendix A of this standard is a normative appendix. The standard proposed by China Machinery Industry Federation. This standard by the National Standardization Technical Committee Optics and optical instruments - Optical glasses Technical Committee (SAC/TC103/SC3) Centralized. This standard is mainly drafted by. Donghua University, the National Optical glass enamels Quality Supervision and Inspection Center. The main drafters of this standard. Zhoujun Wen, Tang Lingling. This standard replaces the standards previously issued as follows. --- GB/T 14148-1993. Ophthalmic lens blank

1 Scope

This standard specifies the ophthalmic lens blank product technical requirements, test methods, inspection rules and signs, bags, transport and Storage. This standard applies to the molten glass by the direct compression molding of several commonly used ophthalmic lens blank, but also for other similar products Reference.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 2828.1-2003 Sampling procedures for inspection - Part 1. by acceptance quality limit (AQL) retrieval batch test sample Programme (ISO 2859-1.1999, IDT) GB 10810.3 spectacle lenses and related products - Part 3. Transmittance specifications and measurement methods (GB 10810.3-2006, ISO 8980-3.2003, MOD)

3 Terms and Definitions

The following terms and definitions apply to this standard. 3.1 From raw materials to finished products all process requirements by optical glass melted into a type having the stable physical and chemical properties suitable for grinding glasses Blank glass spectacle lenses. 3.2 Optical white sheet clearopticallens Colorless glass lenses. 3.3 Clexane optical sheet CRUXITEopticallens Pale pink glass lenses. 3.4 Alex optical sheet CROOKESopticallens Under incandescent pale mauve, pale blue green glass lenses under the fluorescent lights, the characteristic absorption peak wavelength of 560nm ~ 600nm range. 3.5 Chipping breakofedge Lens blank in the diameter direction of the collapse loss. 3.6 Thickness difference edgethicknessdifference The thickness of the lens blank at the two ends of a diameter difference.

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 14148-2011_English be delivered?

Answer: Upon your order, we will start to translate GB/T 14148-2011_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 14148-2011_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 14148-2011_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to [email protected]. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.

Question 5: Should I purchase the latest version GB/T 14148-2011?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 14148-2011 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.