GB/T 25276-2010 English PDF

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GB/T 25276-2010: Triacetyl cellulose (TAC) films for liquid crystal display (LCD) -- Determination of thickness
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 25276-2010	139	Add to Cart	3 days	Triacetyl cellulose (TAC) films for liquid crystal display (LCD) -- Determination of thickness	Valid

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Basic data

Standard ID: GB/T 25276-2010 (GB/T25276-2010)
Description (Translated English): Triacetyl cellulose (TAC) films for liquid crystal display (LCD) -- Determination of thickness
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G15
Classification of International Standard: 71.080.99
Word Count Estimation: 6,623
Date of Issue: 2010-09-26
Date of Implementation: 2011-08-01
Quoted Standard: GB/T 2918
Adopted Standard: ISO 4593-1993, NEQ
Regulation (derived from): National Standard Approval Announcement 2010 No.6 (Total No.161)
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 method for measuring film thickness using cellulose triacetate (TAC) LCD sector (LCD). This standard applies to mechanical measurement and ray method for measuring the thickness of the liquid crystal display g9 shy with TAC. Also apply to an ophthalmic lens with a TAC film thickness measurement. Does not apply to the determination of TAC film thickness lace pressure.

GB/T 25276-2010: Triacetyl cellulose (TAC) films for liquid crystal display (LCD) -- Determination of thickness

---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.
Triacetyl cellulose (TAC) films for liquid crystal display (LCD). Determination of thickness ICS 71.080.99 G15 National Standards of People's Republic of China Liquid crystal display (LCD) with triacetate Cellulose ester (TAC) film thickness measurement method Triacetylcelulose (TAC) filmsforliquidcrystaldisplay (LCD) - (ISO 4593.1993, NEQ) Issued on. 2010-09-26 2011-08-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard and ISO 4593.1993 "Plastics film and sheet thickness mechanical scanning Determination" non-equivalent. The standard proposed by China Petroleum and Chemical Industry Association. This standard by the National Standardization Technical Committee of the optical thin film materials function (SAC/TC431) centralized. This standard was drafted. China Lucky Film Group Corporation. The main drafters of this standard. Sun Zhiying, Liu province, Xu Lili, INTO. Liquid crystal display (LCD) with triacetate Cellulose ester (TAC) film thickness measurement method

1 Scope

This standard specifies the liquid crystal display (LCD) film thickness measurement method using cellulose triacetate (TAC). This standard applies to mechanical measurement and ray method for a liquid crystal display with a TAC film thickness measurement. Also suitable for use glasses Determination of the film thickness of the TAC. Not for measuring pressure lace TAC film thickness.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 2918 plastic sample conditioning and testing of the standard environment

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 Optically functional film opticalfunctionalfilms With a variety of original film and functional film excellent optical performance is mainly used in flat panel displays.

4 Instrument

4.1 Mechanical thickness gauge You should meet the following accuracy. --- 100μm inside (including 100μm) accuracy of 1μm; --- 100μm to 250μm (including 250μm) accuracy of 2μm; --- 250μm above accuracy 3μm. Note 1. When the measuring instrument incapable of higher accuracy requirements, should not use this method, but should be used in a more appropriate measurement instrument or measurement method. ISO 4591 "Plastics film and sheeting measuring the average sample thickness, web thickness and average yield of measuring the weight measurement (gravimetric thickness Degree) "set forth in the weighing method applied thickness was measured. Measuring instrument should have a planar surface and a lower surface measuring surface flat or convex surface on the measurement, all measuring surface should be thrown Light. The vertical measuring surface is a plane/plane, each measuring surface diameter should be between 2.5mm to 10mm, less than two non-parallel plane 5μm. By measuring the surface should be adjusted to meet the above requirements. Measurement should face between the load applied to the specimen in 0.5N to 1.0N. When measuring the upper and lower surfaces of the convex/plane, the radius of curvature of the measuring surface should be between 15mm to 50mm in diameter measured surface should not Less than 5mm, the face should be measured between the load applied to the specimen in 0.1N to 0.5N. Note 2. The pass-through output measurements can use mechanical method (micrometer), an optical method (using a mirror meter) or electrical method (inductive method) and other methods. ......

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