When it comes to testing HEPA and ULPA filters, two major standards are widely used:
में 1822 और आईएसओ 29463.
Although they are closely related, there are important differences in their structure, आवेदन, and global usage.
This guide explains the key differences to help you understand which standard to use—and why it matters.
1. एन का अवलोकन 1822 और आईएसओ 29463
में 1822
- European standard
- Focused on HEPA/ULPA filter testing
- Widely used in Europe and many international projects
आईएसओ 29463
- International standard (based on EN 1822)
- Developed to harmonize global testing methods
- Increasingly adopted worldwide
👉 In simple terms:
आईएसओ 29463 = international version of EN 1822 (with some extensions)
2. Structural Differences
में 1822 संरचना
में 1822 is typically divided into 5 पार्ट्स:
- वर्गीकरण, performance testing
- Aerosol production and measurement
- Flat sheet media testing
- Leak test (स्कैन परीक्षण)
- Filter element testing
आईएसओ 29463 संरचना
आईएसओ 29463 expands this into multiple parts with more detailed guidance, शामिल:
- Additional definitions
- Extended testing procedures
- Global harmonization
👉 ISO 29463 is more comprehensive and standardized internationally
3. वर्गीकरण का तरीका
दोनों मानक एमपीपीएस पर दक्षता के आधार पर फिल्टर को वर्गीकृत करते हैं:
| Class Type | में 1822 | आईएसओ 29463 |
|---|---|---|
| हेपा | H13–H14 | Same |
| क्रोध | U15-U17 | Same |
👉 Classification values are essentially aligned
4. Testing Method Comparison
Similarities
Both standards include:
✔ MPPS determination
✔ Efficiency testing
✔ Leak (scan) परीक्षण
Differences
| पहलू | में 1822 | आईएसओ 29463 |
|---|---|---|
| दायरा | यूरोप-केंद्रित | Global |
| Detail level | Moderate | More detailed |
| Standardization | Regional | अंतरराष्ट्रीय |
👉व्यवहार में:
Test principles are the same, but ISO 29463 is more standardized globally
5. लीक परीक्षण (स्कैन परीक्षण): No Real Difference
The most critical test in both standards is the स्कैन परीक्षण.
- 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. अनुशंसित परीक्षण समाधान
To meet both EN 1822 और आईएसओ 29463 आवश्यकताएं, a reliable scanning system is essential.
The SC-L8023 Scanning Filter Tester from SCPUR is designed for:
- उच्च-संवेदनशीलता रिसाव का पता लगाना
- Precise scanning control
- स्थिर और दोहराने योग्य प्रदर्शन
👉 Suitable for both EN 1822 और आईएसओ 29463 परीक्षण
9. निष्कर्ष
में 1822 और आईएसओ 29463 are closely related standards for HEPA and ULPA filter testing.
- में 1822 → widely used in Europe
- आईएसओ 29463 → global standard based on EN 1822
👉 In most cases, the testing methods are similar, and the choice depends on your market requirements.
