GB/T 5838.44-2015 English PDF

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GB/T 5838.44-2015: Phosphors -- Part 4-4: Phosphor for color picture tubes
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Basic data

Standard ID: GB/T 5838.44-2015 (GB/T5838.44-2015)
Description (Translated English): Phosphors -- Part 4-4: Phosphor for color picture tubes
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: L90
Classification of International Standard: 31-030
Word Count Estimation: 10,186
Date of Issue: 2015-05-15
Date of Implementation: 2016-01-01
Older Standard (superseded by this standard): GB/T 4779.1-1984; GB/T 4779.2-1984; GB/T 4779.3-1984
Quoted Standard: GB/T 191; GB/T 31418.3-2015; 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 Y22-G3, Y22-B2, Y22-R4 phosphor requirements, test methods, inspection rules, signs and packaging, transportation and storage. This section applies to a color picture tube phosphors.

GB/T 5838.44-2015: Phosphors -- Part 4-4: Phosphor for color picture tubes

---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 4-4. Phosphor for color picture tubes ICS 31-030 L90 National Standards of People's Republic of China Replacing GB/T 4779.1 ~ 4779.3-1984 Phosphor Part 4-4. color picture tube phosphors 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 4 Requirements 1 5 Test Method 4 6 Inspection rules 5 7 logo 5 8 packaging, transportation and storage of 6

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 4-4. This section drafted in accordance with GB/T 1.1-2009 given rules. This Part replaces GB/T 4779.1-1984 "color picture tube phosphors Y22-G3 phosphor", GB/T 4779.2-1984 "Color picture tube with a phosphor phosphor Y22-B2" and GB/T 4779.3-1984 "color picture tube fluorescent phosphors Y22-R4 powder". 4779.1 ~ 4779.3-1984 compared to major changes in this part of GB/T as follows. --- The GB/T 4779.1 ~ 4779.3 standards into three parts of a standard; --- Increased in Chapter 1, Chapter 2 and Chapter 3; --- Original standard GB/T 4779.1 ~ 4779.3-1984 first chapters, technical indicators combined polymorphs, and the appearance of the second chapter Chapter 4 of this Part requirements, Y22-G3, Y22-B2, Y22-R4 three kinds of phosphors were integrated, standardized phosphor Composition expression (Table 1); --- Modify, integrate the "center particle size by weight" and "weight median particle size" to "volume center particle size" (see 4.3 1, 1984 edition 2.2.1); --- Added "logarithmic standard deviation" (see 4.3.2); --- Modify, integrate the "chromaticity coordinates" and "chromaticity coordinates" to "chromaticity coordinates" (see 44, 1984 version 2.3.1.); --- Added "emission spectrum peak wavelength" (see 4.7.1); --- Original standard GB/T 4779.1 ~ 4779.3 Chapter 2 of the proposed test method into a single chapter that is in Chapter 5, and Y22-G3, Y22-B2, Y22-R4 three kinds of phosphors were integrated; --- Increased sampling and inspection rules Batch rules (see 6.2 and 6.3); --- All the test methods to modify the terms of reference for the new reference standard test method provisions; --- Original standard GB/T 4779.1 ~ 4779.3 Chapter 4 adjustment-oriented Chapters 7 and 8 portion, and Y22-G3, Y22- B2, Y22-R4 three kinds of phosphors were integrated. 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. This part of the standard replaces the previous editions are. --- GB/T 4779.1-1984; --- GB/T 4779.2-1984; --- GB/T 4779.3-1984. Phosphor Part 4-4. color picture tube phosphors

1 Scope

This section provides Y22-G3, Y22-B2, Y22-R4 phosphor requirements, test methods, inspection rules, logo and packaging, transportation And storage. This section applies to a color picture tube phosphors.

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 191 Packaging - Pictorial signs GB/T 31418.3-2015 phosphor Part 3. Performance test methods GB/T 5838 phosphor terminology

3 Terms and Definitions

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

4 Requirements

4.1 composition, crystal form, appearance and luminous color Composition, crystal form, appearance and luminous colors to comply with Table 1. Table 1 No. Species composition polymorph luminous color appearance 1 Y22-G3 ZnS.Cu · Al cubic crystal light yellow-green powder In the cathode-ray or UV 365nm Excitation light yellow-green hair 2 Y22-B2 ZnS.Ag · Cl CoO · Al2O3 cubic crystal light blue powder In the cathode-ray or UV 365nm Excited by blue light 3 Y22-R4 Y2O2S.Eu α-Fe2O3 cubic crystal powder pink In the cathode-ray or UV 365nm Red light excitation 4.2 mechanical impurities It should be free of mechanical impurities. ......

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