GB/T 44551-2024 English PDF

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GB/T 44551-2024: Optical functional films - Weathering resistance testing method - Solvent induction method
Status: Valid

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Basic data

Standard ID: GB/T 44551-2024 (GB/T44551-2024)
Description (Translated English): Optical functional films - Weathering resistance testing method - Solvent induction method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G15
Classification of International Standard: 71.080.99
Word Count Estimation: 10,139
Date of Issue: 2024-09-29
Date of Implementation: 2025-04-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 44551-2024: Optical functional films - Weathering resistance testing method - Solvent induction method

---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 - Weathering resistance testing method - Solvent induction method Determination method of weather resistance of optical functional films Solvent Induction Method Optical functional films-Weathering resistance testing method- Solvent induction method ICS 71.080.99 CCS G15 National Standard of the People's Republic of China Released on 2024-09-29 2025-04-01 Implementation State Administration for Market Regulation The National Standardization Administration issued

Table of Contents

Preface ... Ⅲ 1 Scope ... 1 2 Normative references ... 1 3 Terms and Definitions ... 1 4 Instruments, Equipment and Reagents ... 1 4.1 Glass bottle ... 1 4.2 Organic solvents 1 5 Samples ... 1 6 Status Adjustment ... 2 7 Test steps ... 2 7.1 Test Environment ... 2 7.2 Performance testing before weathering test ... 2 7.3 Weathering resistance test ... 2 7.4 Performance testing after weathering test ... 3 7.5 Detection of appearance changes after weathering test ... 4 8 Test Report ... 4

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 is required. 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 the China Petroleum and Chemical Industry Federation. This document is under the jurisdiction of the National Technical Committee for Standardization of Optical Functional Thin Film Materials (SAC/TC 431). This document was drafted by. Hefei Lucky Technology Industry Co., Ltd., Hengshan County Jiacheng New Materials Co., Ltd., Hunan Hexiangrun New Materials Co., Ltd., University of Science and Technology of China. The main drafters of this document are. Li Heng, Liu Changfeng, Liu Yulei, Li Chao, Han Jie, Xu Qianqian, Li Caicui, Liu Wenliang, Xie Jinpei, Liao Pingxiang, Li Ying, Li Liangbin, Meng Lingpu, Chen Jungen. Determination method of weather resistance of optical functional films Solvent Induction Method

1 Scope

This document describes the method for determining the weathering properties of optically functional films using the solvent-induced method. This document is applicable to the determination of optically functional films with surface coatings.

2 Normative references

The contents of the following documents constitute the 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. in this document. GB/T 2410 Determination of light transmittance and haze of transparent plastics GB/T 2918-2018 Standard environment for conditioning and testing of plastic specimens GB/T 9754 Paints and varnishes - Determination of specular gloss at 20°, 60° and 85° for paint films without metallic pigments GB/T 11186.2 Measurement methods for coating color Part 2.Color measurement GB/T 25257 Determination of warpage of optical functional films HG/T 4915 Determination of reflectivity of white reflective film ISO 17221 Plastics - Determination of image clarity (distinctness of image in reflection or transmission) image clarity (degree of sharpness of reflected or transmitted image)]

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Solvent induction method A method to characterize the changes in coating surface properties and precipitation by using the principle of penetration and diffusion and inducing the coating surface with stimulation by organic solvents. 4.Instruments, Equipment and Reagents 4.1 Glass bottles The bottle body is cylindrical, the volume of the glass bottle is (150±5) mm, and the inner diameter of the bottle mouth is (80±1) mm; the bottle mouth should be flat and without defect. 4.2 Organic solvents One of analytically pure butanone, ethyl acetate, and isopropanol. 5.Samples 5.1 The sample to be measured should meet the preparation requirements of the specified sample. ......

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