GB/T 5838.3-2015 English PDF

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GB/T 5838.3-2015: Phosphors -- Part 3: Test methods for properties
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Basic data

Standard ID: GB/T 5838.3-2015 (GB/T5838.3-2015)
Description (Translated English): Phosphors -- Part 3: Test methods for properties
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: L90
Classification of International Standard: 31-030
Word Count Estimation: 23,237
Date of Issue: 2015-05-15
Date of Implementation: 2016-01-01
Older Standard (superseded by this standard): GB/T 4070-1996
Quoted Standard: GB/T 5838
Regulation (derived from): National Standard Announcement 2015 No. 15
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 fluorescent water soluble chloride, density, particle size distribution, the relative brightness, the relative spectral power distribution, chromaticity coordinates, UV radiation stability, the relative brightness of the afterglow, the specific surface area, luminous efficiency, afterglow time, thermal stability, wet adhesion, dry adhesion, reflectivity, temperature characteristics, pH, conductivity testing methods. This section applies to the phosphor performance tests, in which the stability of the ultraviolet radiation, the afterglow brightness and relative surface area than the test method applies only to photoluminescence phosphor, luminous efficiency, afterglow time, thermal stability, wet adhesion, dry adhesion test method applies only reflectivity cathode ray luminescent phosphor.

GB/T 5838.3-2015: Phosphors -- Part 3: Test methods for properties

---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.
Phosphors Part 3. Test methods for properties ICS 31-030 L90 National Standards of People's Republic of China Replacing GB/T 4070-1996 Phosphor - Part 3. Performance test methods Issued on. 2015-05-15 2016-01-01 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 Determination of water soluble chloride 4 1 Determination of density 2 5 Determination of the particle size distribution of 6 3 7 relative brightness measured 4 8 Determination of relative spectral power distribution 5 9 Determination of chromaticity coordinates 6 Determination of the temperature characteristic of 10 7 11 pH measurement value 9 Conductivity measurement 12 9 13 Determination of organic light-emitting phosphor light stability of UV radiation 10 14 afterglow photoluminescence phosphor relative brightness measured 11 15 photoluminescent phosphors specific surface area measuring 11 16 cathode-ray luminescent phosphor luminous efficiency measurement 14 17 cathodoluminescence measurement of the luminescence decay time of the phosphor 14 Electroluminescent phosphor Determination of thermal stability of the cathode ray 18 15 19 Determination of organic light-emitting phosphor cathode-ray wet adhesion 16 Electroluminescent phosphor adhesion assay 20 dry cathode ray 17 21 cathode-ray luminescent phosphor reflectance measuring 18 Appendix A (normative) ethanol density 19

Foreword

GB/T 5838 "phosphor" series of national standards include the following. --- Part 1. Terminology; --- Part 2. grades; --- Part 3. Performance test methods; --- Part 4-1. Black and white phosphor display tubes; --- Part 4-2. Indicates useful phosphors; --- Part 4-3. CRT display tubes and phosphors; --- Part 4-4. color picture tube phosphors; --- Part 4-5. color display tubes phosphor. This part of GB/T 5838 Part 3. This section drafted in accordance with GB/T 1.1-2009 given rules. GB/T 4070-1996 "phosphor performance test method" in this section instead. This part of GB/T 4070-1996 compared to the main changes are as follows. --- All references to the terms and definitions GB/T 5838 (see Chapter 3); --- Modified water soluble chloride determined by the provisions of reagents and solutions (see 4.2 2, 4.2 3, 4.2 4, 1996 edition of 4.2.2, 4.2.3,4.2.4); --- Determination of particle size distribution increases the laser scattering method (see 6.2); --- Increase the measured temperature characteristics (see Chapter 10); --- Increase the measured pH value (see Chapter 11); --- Increasing the conductivity measurement (see Chapter 12); --- Increased photoluminescence phosphor surface area measurement (see Chapter 15); --- Increasing the cathode ray luminescent phosphor reflectance measurement (see Chapter 21); --- Increased ethanol density (see Appendix A). Please note that some of the content of this document may involve patents. Release mechanism of the present document does not assume responsibility for the identification of these patents. This part is proposed by the Ministry of Industry and Information Technology of the People's Republic of China. This part of the National Standardization Technical Committee device and semiconductor material (SAC/TC203) centralized. This section is drafted. the Rainbow Group, China Electronics Standardization Institute. The main drafters of this section. Zhang Donghong, Huang Ning songs, Peihui Chuan, Zhuang Weidong. This part of the standard replaces the previous editions are. --- GB 4070 ~ 4072-1983; --- GB/T 4070-1996. Phosphor - Part 3. Performance test methods

1 Scope

This section provides a water-soluble chloride phosphors, density, particle size distribution, the relative brightness, the relative spectral power distribution, chromaticity coordinates, ultraviolet Radiation stability, the relative brightness of the afterglow, the specific surface area, luminous efficiency, afterglow time, thermal stability, wet adhesion, dry adhesion, reflectivity, temperature Degree characteristic, pH, conductivity test method. This section applies to the phosphor performance tests, in which the stability of the ultraviolet radiation, the afterglow brightness and relative surface area than the test method only Suitable for photoluminescence phosphor, luminous efficiency test method, afterglow time, thermal stability, wet adhesion, dry adhesion, reflectivity only applies Cathode ray luminescent phosphor.

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 5838 phosphor terminology

3 Terms and Definitions

Terms and definitions GB/T 5838 defined apply to this document.

4 Determination of water soluble chlorides

4.1 Principle Nitric acid solution, chloride ions and silver ions form insoluble silver chloride precipitate. When low chloride content, chloride within a certain time Silver was a suspension, the solution was turbid, thereby performed turbidimetric chlorides. 4.2 Reagents and solutions 4.2.1 zinc sulfate solution (50g/L) Weigh 5.0g zinc sulfate, soluble in water, dilute to 100mL, shake. 4.2.2 nitric acid (25%) Weighed about 35mL of concentrated nitric acid (69.8%), diluted with water to 100mL, shake. 4.2.3 silver nitrate solution (25g/L) Weigh 2.5g of silver nitrate, plus 5mL nitric acid and water dissolved and diluted to 100mL volumetric flask, constant volume, shake. 4.2.4 Chloride standard solution 0.1000% Cl-. Accurately weigh 1.6484g of sodium chloride was added water dissolved and diluted to 1000mL volumetric flask, constant volume with pure water, ......

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