When it comes to testing HEPA and ULPA filters, two major standards are widely used:
في 1822 و ايزو 29463.
Although they are closely related, there are important differences in their structure, application, and global usage.
This guide explains the key differences to help you understand which standard to use—and why it matters.
1. نظرة عامة على EN 1822 و ايزو 29463
في 1822
- European standard
- Focused on HEPA/ULPA filter testing
- Widely used in Europe and many international projects
ايزو 29463
- International standard (based on EN 1822)
- Developed to harmonize global testing methods
- Increasingly adopted worldwide
👉 In simple terms:
ايزو 29463 = international version of EN 1822 (with some extensions)
2. Structural Differences
في 1822 بناء
في 1822 is typically divided into 5 أجزاء:
- تصنيف, performance testing
- Aerosol production and measurement
- Flat sheet media testing
- Leak test (اختبار المسح)
- Filter element testing
ايزو 29463 بناء
ايزو 29463 expands this into multiple parts with more detailed guidance, مشتمل:
- Additional definitions
- Extended testing procedures
- Global harmonization
👉 ISO 29463 is more comprehensive and standardized internationally
3. نظام التصنيف
يصنف كلا المعيارين المرشحات على أساس الكفاءة في MPPS:
| Class Type | في 1822 | ايزو 29463 |
|---|---|---|
| هيبا | H13-H14 | Same |
| غضب | تحت 15 – تحت 17 | Same |
👉 Classification values are essentially aligned
4. Testing Method Comparison
Similarities
Both standards include:
✔ MPPS determination
✔ Efficiency testing
✔ Leak (scan) اختبار
Differences
| وجه | في 1822 | ايزو 29463 |
|---|---|---|
| نِطَاق | تركز على أوروبا | Global |
| Detail level | Moderate | More detailed |
| Standardization | Regional | دولي |
👉 عملياً:
Test principles are the same, but ISO 29463 is more standardized globally
5. اختبار التسرب (اختبار المسح): No Real Difference
The most critical test in both standards is the اختبار المسح.
- 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. حل الاختبار الموصى به
To meet both EN 1822 و ايزو 29463 متطلبات, a reliable scanning system is essential.
ال SC-L8023 Scanning Filter Tester from SCPUR is designed for:
- كشف التسربات بحساسية عالية
- Precise scanning control
- أداء مستقر وقابل للتكرار
👉 Suitable for both EN 1822 و ايزو 29463 اختبار
9. خاتمة
في 1822 و ايزو 29463 are closely related standards for HEPA and ULPA filter testing.
- في 1822 → widely used in Europe
- ايزو 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 و ايزو 29463? Contact us for expert recommendations.
