GB/T 25257-2010 English PDF

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GB/T 25257-2010: Optical functional films -- Determination of warping degree
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 25257-2010	189	Add to Cart	3 days	Optical functional films -- Determination of warping degree	Valid

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Basic data

Standard ID: GB/T 25257-2010 (GB/T25257-2010)
Description (Translated English): Optical functional films -- Determination of warping degree
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G15
Classification of International Standard: 71.080.99
Word Count Estimation: 8,849
Date of Issue: 2010-09-26
Date of Implementation: 2011-08-01
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 optical functional film warpage measurement methods. This standard applies to the determination of optical functional film warpage.

GB/T 25257-2010: Optical functional films -- Determination of warping degree

---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.
Optical functional films. Determination of warping degree ICS 71.080.99 G15 National Standards of People's Republic of China Optically functional film warpage measurement method 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. 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. Liu province, Sun Zhiying, Fan Jinlong, Zhang trip. Optically functional film warpage measurement method

1 Scope

This standard specifies the method for determination of warpage of the optical functional film. This standard applies to the determination of the optical functional film warpage.

2 Terms and definitions

The following terms and definitions apply to this document. 2.1 Optically functional film opticalfunctionalfilms Has excellent optical properties of various original film and functional film industry is mainly applied to the display. 2.2 Warp warp Film material production process, due to incidental coating, tension control, drying and other treatment processes and other factors can cause the internal should Power imbalance, caused when the film plane is placed uneven phenomenon. 2.3 Warpage warpingdegree The degree of warping, warpage and warpage directions represented. 2.4 Warp direction warpingdirection Bending direction of warpage of the film. 2.5 Warpage warpingvalue Characterization warpage specific values, in millimeters (mm).

3 Select Sample

Warpage of the test specimen should be representative of the shaft into a film should be discarded and the outer layer of the sample 2-3, and direction of the sample to be Labeling; samples usually rectangular, which will help to identify the direction of the film for processing. a) shall select A4 (21mm × 29.7mm) size of the test samples were warp; the special needs of the occasion, according to the supply-side and demand-side The two sides previously agreed to crop size and testing; b) the apparent sample should be no creases, scratches, bubbles, foreign bodies, water spots and other ills, trimming should be smooth, no glitches, no gap; c) the preparation and testing of the sample, the operator should wear gloves yarn and avoid breathing directly at the sample; d) each sample of at least 3 specimens tested.

4 Test conditions

All samples should be ± 23 ℃ 2 ℃ and at a relative humidity of 50% ± 5% environmental balance, equilibrium time is generally 2h ~ 8h. level ......

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