When it comes to testing HEPA and ULPA filters, two major standards are widely used:
在 1822 和 国际标准化组织 29463.
Although they are closely related, there are important differences in their structure, 应用, and global usage.
This guide explains the key differences to help you understand which standard to use—and why it matters.
1. EN概述 1822 和ISO 29463
在 1822
- European standard
- Focused on HEPA/ULPA filter testing
- Widely used in Europe and many international projects
国际标准化组织 29463
- International standard (based on EN 1822)
- Developed to harmonize global testing methods
- Increasingly adopted worldwide
👉 In simple terms:
国际标准化组织 29463 = international version of EN 1822 (with some extensions)
2. Structural Differences
在 1822 结构
在 1822 is typically divided into 5 部分:
- 分类, performance testing
- Aerosol production and measurement
- Flat sheet media testing
- Leak test (扫描测试)
- Filter element testing
国际标准化组织 29463 结构
国际标准化组织 29463 expands this into multiple parts with more detailed guidance, 包括:
- Additional definitions
- Extended testing procedures
- Global harmonization
👉 ISO 29463 is more comprehensive and standardized internationally
3. 分类系统
两个标准均根据 MPPS 效率对过滤器进行分类:
| Class Type | 在 1822 | 国际标准化组织 29463 |
|---|---|---|
| 高效空气过滤器 | H13–H14 | Same |
| 愤怒 | U15–U17 | Same |
👉 Classification values are essentially aligned
4. Testing Method Comparison
Similarities
Both standards include:
✔ MPPS determination
✔ Efficiency testing
✔ Leak (scan) 测试
Differences
| 方面 | 在 1822 | 国际标准化组织 29463 |
|---|---|---|
| 范围 | 以欧洲为中心 | Global |
| Detail level | Moderate | More detailed |
| Standardization | Regional | 国际的 |
👉实践中:
Test principles are the same, but ISO 29463 is more standardized globally
5. 泄漏测试 (扫描测试): No Real Difference
The most critical test in both standards is the 扫描测试.
- Detects local leaks in filters
- Ensures uniform performance
- Required for HEPA/ULPA validation
👉 Equipment requirements are essentially the same for both standards
6. Which Standard Should You Use?
Choose EN 1822 if:
- Your market is Europe
- Your clients specify EN standards
- You work with established HEPA production lines
Choose ISO 29463 if:
- You sell globally
- You need international compliance
- Your clients require ISO certification
👉 Many manufacturers now test according to both standards
7. Practical Challenges in Testing
Regardless of the standard, common challenges include:
- Detecting micro-leaks
- Maintaining stable aerosol concentration
- Achieving consistent scanning speed
- Avoiding false positives
👉 These challenges directly impact test accuracy
8. 推荐测试方案
To meet both EN 1822 和ISO 29463 要求, a reliable scanning system is essential.
这 SC-L8023 Scanning Filter Tester from SCPUR is designed for:
- 高灵敏度泄漏检测
- Precise scanning control
- 性能稳定且可重复
👉 Suitable for both EN 1822 和ISO 29463 测试
9. 结论
在 1822 和ISO 29463 are closely related standards for HEPA and ULPA filter testing.
- 在 1822 → widely used in Europe
- 国际标准化组织 29463 → global standard based on EN 1822
👉 In most cases, the testing methods are similar, and the choice depends on your market requirements.
👉 Need a testing solution that meets both EN 1822 和ISO 29463? Contact us for expert recommendations.
