GB/T 30076-2026Rare earth activated silicate phosphors for LEDs (English PDF)

Foreword

This document conforms to GB/T 1.1-2020 "Standardization Work Guidelines Part

1.Structure and Drafting Rules of Standardization Documents". Drafting is scheduled. This document replaces GB/T 30076-2013 "Rare Earth Silicate Phosphors for LEDs". Compared with GB/T 30076-2013, it has the following differences. Aside from structural adjustments and editorial changes, the main technical changes are as follows:

a) The original trademark numbers have been deleted (see Table 1 in the.2013 edition).

b) Product categories have been changed (see 4.1,.2013 edition of 4.1).

c) A new method for representing trademarks has been added (see 4.2);

d) The following grades were added. LM-09-05-A1, LM-09-05-A2, LM-09-05-A3, LM-09-05-A4, and LM-09-05-B (see Table 1);

e) The thermal stability index and its test requirements have been removed (see Tables 1 and

5.1 in the.2013 edition).

f) The external quantum efficiency, thermal quenching, high-pressure accelerated aging performance, and high-temperature and high-humidity performance indicators and their test requirements have been added (see...). Table 1, 6.1).

g) The test method was changed (see Chapter 6, Chapter 5 of the.2013 edition);

h) The inspection rules have been changed (see Chapter 7, Chapter 6 in the.2013 edition);

i) Changes were made to the markings, packaging, shipping, storage, and accompanying documentation (see Chapter 8, Chapter 7 of the.2013 edition). Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents. This document was proposed and is under the jurisdiction of the National Rare Earth Standardization Technical Committee (SAC/TC 229). This document was drafted by: GRINM Rare Earth New Materials Co., Ltd., Jiangsu Borui Optoelectronics Co., Ltd., and Xiamen Rare Earth Materials Research Institute. Institute, Jiangmen Keheng Industrial Co., Ltd., Baotou Rare Earth Research Institute, Jiangxi University of Science and Technology, and GRINM Rare Earth High Technology Co., Ltd. The main drafters of this document are. Liu Ronghui, Yu Xiaojiao, Liu Yuanhong, Liang Chao, Lin Fulin, Li Yunfeng, Song Biqing, Wang Jing, Ye Xinyu, and Tang Zongquan. Wang Haoyang, Xie Shihui, Wang Wei, Gao Jianhua, Wang Zhongzhi, Li Yan, Qin Shaowei. This document was first published in.2013, and this is its first revision. Rare earth silicate phosphor for LEDs

1.Scope This document specifies the classification and grade designation methods, technical requirements, test methods, and inspection rules for rare earth silicate phosphors used in LEDs. Packaging, marking, transportation, storage and accompanying documents. This document applies to the production and testing of rare earth silicate phosphors prepared by high-temperature solid-state methods, co-precipitation methods, etc.

Note. Rare earth silicate phosphors used in LEDs emit green, yellow-green, yellow, and orange-red light when excited by a light source with wavelengths from 250 nm to 500 nm. They are mainly used in the manufacture of Prepare LED light-emitting devices that are excited by ultraviolet or blue LED chips.

4 Product classification and brand designation methods

4.1 Classification The products are classified according to their structural composition into green, yellow-green, and yellow phosphors with a (Sr,Ba)2SiO4.Eu2 structure, and (Sr,Ba)3SiO5.Eu2 phosphors. There are two main categories of phosphors. orange-red phosphors and red phosphors.

4.2 Designation Method The brand designation consists of the first letter of the English word for luminescent material, Arabic numerals, and letters, and is divided into four levels.

a) The first level is represented by the first letters of the English word "LM" for luminescent materials;

b) The second level indicates the product's function and category, represented by the specified "09" (the product can be powered by ultraviolet or blue light LED chips). excitation);

c) The third level indicates the product's system, which belongs to the silicate system, and is represented by "05";

d) The fourth level, represented by the letter A, is a (Sr,Ba)2SiO4.Eu2 structure silicate phosphor, with serial numbers 1-4 indicating different emission levels. The peak wavelength range is represented by the letter B. (Sr,Ba)3SiO

5.Eu2 structure silicate phosphor. Each level is separated by the separator "".

5 Technical Requirements

5.1 Product Performance The performance of the product shall meet the requirements specified in Table

1.If the buyer has special requirements, they shall be determined through negotiation between the supplier and the buyer.

5.2 Appearance Quality The product should be a green, yellow-green, yellow, or orange-red powder, and should be uniform, clean, and free of visible impurities.

8 Packaging, marking, transport, storage and accompanying documents

8.1 Packaging, marking, transportation, and storage The packaging, labeling, transportation, and storage of the product shall be carried out in accordance with the provisions of GB 39176.The smallest packaging unit of the product can be divided into 6 types, respectively... Available in 50 g, 100 g,.200 g, 250 g, 500 g and 1000 g, with specific requirements to be determined through negotiation between the supplier and the buyer.

8.2 Accompanying Documents Each batch of products should be accompanied by documentation, which should include, in addition to a quality certificate conforming to GB 39176, preferably.

a) Product certificate;

b) Inspection reports during the product quality control process and finished product inspection reports;

c) Product instruction manual.