When it comes to testing HEPA and ULPA filters, two major standards are widely used:
В 1822 и ИСО 29463.
Although they are closely related, there are important differences in their structure, приложение, and global usage.
This guide explains the key differences to help you understand which standard to use—and why it matters.
1. Обзор EN 1822 и ИСО 29463
В 1822
- European standard
- Focused on HEPA/ULPA filter testing
- Widely used in Europe and many international projects
ИСО 29463
- International standard (based on EN 1822)
- Developed to harmonize global testing methods
- Increasingly adopted worldwide
👉 In simple terms:
ИСО 29463 = international version of EN 1822 (with some extensions)
2. Structural Differences
В 1822 Структура
В 1822 is typically divided into 5 части:
- Классификация, performance testing
- Aerosol production and measurement
- Flat sheet media testing
- Leak test (тест сканирования)
- Filter element testing
ИСО 29463 Структура
ИСО 29463 expands this into multiple parts with more detailed guidance, включая:
- Additional definitions
- Extended testing procedures
- Global harmonization
👉 ISO 29463 is more comprehensive and standardized internationally
3. Система классификации
Оба стандарта классифицируют фильтры по эффективности при MPPS.:
| Class Type | В 1822 | ИСО 29463 |
|---|---|---|
| HEPA | Н13–Н14 | Same |
| ГНЕВ | U15–U17 | Same |
👉 Classification values are essentially aligned
4. Testing Method Comparison
Similarities
Both standards include:
✔ MPPS determination
✔ Efficiency testing
✔ Leak (scan) тестирование
Differences
| Аспект | В 1822 | ИСО 29463 |
|---|---|---|
| Объем | ориентированный на Европу | Global |
| Detail level | Moderate | More detailed |
| Standardization | Regional | Международный |
👉 На практике:
Test principles are the same, but ISO 29463 is more standardized globally
5. Тест на утечку (Тест сканирования): No Real Difference
The most critical test in both standards is the тест сканирования.
- 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. Рекомендуемое решение для тестирования
To meet both EN 1822 и ИСО 29463 требования, a reliable scanning system is essential.
The SC-L8023 Scanning Filter Tester from SCPUR is designed for:
- Высокочувствительное обнаружение утечек
- Precise scanning control
- Стабильная и повторяемая производительность
👉 Suitable for both EN 1822 и ИСО 29463 тестирование
9. Заключение
В 1822 и ИСО 29463 are closely related standards for HEPA and ULPA filter testing.
- В 1822 → widely used in Europe
- ИСО 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 и ИСО 29463? Contact us for expert recommendations.
