GB/T 3504-2015 in English
VALIDEuropium oxide
- Issued on:2015-09-11
- Implemented on:2016-04-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$97.00
| Standard No: | GB/T 3504-2015 |
| Document status: | VALID |
| Title in English: | Europium oxide |
| Title in Chinese: | 氧化铕 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2015-09-11 |
| Implemented on: | 2016-04-01 |
| Superseding: |
GB/T 3504-2006 Europium oxide
|
| ICS Classification: | 77.120.99-Other non-ferrous metals and their alloys |
| Chinese Classification: | H65-Rare metals and their alloys |
| Professional Classification: | GB-National Standard |
| Related Keywords: | europium oxide
europium oxide standards oxide introduction in-depth interpretation eu2o3-4n impurity indicators fixed range optimized requirements standard dimensions gb/t3504-2006 gb/t3504-2015 grade classification |
| Related Topics: | edta and europium
GBT3504 GB/T 3504-1992 GB/T 3504-2006 GB/T 3504-2015 europium |
《GB/T 3504-2015氧化铕》由TC229（全国稀土标准化技术委员会）归口，主管部门为国家标准化管理委员会。
本标准规定了氧化铕的要求、试验方法、检验规则和标志、包装、运输、贮存及质量证明书。
本标准适用于化学法或其他方法制得的,供制作稀土荧光粉和X射线增感屏活化剂等用途的氧化铕产品。
Introduction
In-depth interpretation and application guide of europium oxide standards
1. Background and significance of standard revision
GB/T3504-2015 "Europium Oxide" standard is an important specification for the rare earth industry, replacing the original GB/T3504-2006 version.
- The text description of the scope has been modified
- Character grades have been added (see Chapter 3)
- The original grade 071035 has been deleted
- The assessment indicators for impurity content have been adjusted
- New requirements for marking, packaging, transportation and storage have been added
| Standard dimensions | GB/T3504-2006 | GB/T3504-2015 |
|---|---|---|
| Grade classification | Only 071035 | Eu2O3-5N, Eu2O3-4N |
| Impurity indicators | Fixed range | Optimized requirements for rare earth impurities and non-rare earth impurities |
| Physical properties | Central particle size is not specified | New requirements in the range of 2.5μm~6.0μm |
2. Interpretation of the main contents of the standard
2.1 Product classification and brand representation
The standard stipulates that europium oxide is divided into two brands, Eu2O3-5N and Eu2O3-4N according to chemical composition. The specific brand representation method should follow GB/T17803.
2.2 Chemical composition requirements
| Item | Eu2O3-5N | Eu2O3-4N |
|---|---|---|
| REO content (%) | ≥99.0 | ≥99.0 |
| Eu2O3/REO content (%) | ≥99.9 | ≥99.9 |
3. Implementation suggestions and precautions
3.1 Procurement
Both the supplier and the buyer should clearly define the requirements for brand and chemical composition. Special requirements shall be negotiated separately.
3.2 Inspection Process
- Chemical composition testing is based on GB/T14635 and GB/T18115.6
- Particle size distribution testing is based on GB/T20170.1
- Numerical rounding is based on GB/T8170
3.3 Quality Management
It is recommended to establish an internal quality traceability system and regularly review key indicators to ensure stable product quality.
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