Air filtration plays a critical role in maintaining indoor air quality across HVAC systems, industrial environments, and commercial buildings. To ensure reliable performance, general air filters must be evaluated according to standardized testing methods and classification systems.
This article provides an overview of testing standards, filter classification, and test rig systems, helping manufacturers and laboratories select the right solutions for performance validation.
1. What Are General Air Filters?
General air filters are primarily used in HVAC and ventilation systems to remove airborne particles such as:
- Dust
- Pollen
- Fine particulate matter (PM10, PM2.5, PM1)
Unlike HEPA filters, general ventilation filters focus on real-world particle size distribution, making their testing standards more application-oriented.
2. Key Testing Standards for General Air Filters
2.1 ايزو 16890
ال ايزو 16890 standard is currently the most widely adopted global standard for general ventilation filters.
الميزات الرئيسية:
- Classifies filters based on PM1, PM2.5, وكفاءة PM10
- Reflects real atmospheric dust conditions
- Replaces older standards like EN 779
نظام التصنيف:
- ePM1
- ePM2.5
- ePM10
- خشن
👉 This standard provides a more realistic evaluation compared to traditional methods.
2.2 في 779 (المعيار القديم)
في 779 was previously used in Europe, classifying filters as:
- G1-G4 (المرشحات الخشنة)
- F5-F9 (المرشحات الدقيقة)
Although now largely replaced by ISO 16890, it is still referenced in some markets and legacy systems.
3. Filter Classification Overview
Modern classification focuses on particle size efficiency, rather than only arrestance:
| تصنيف | نطاق حجم الجسيمات | طلب |
|---|---|---|
| خشن | >10 ميكرومتر | الترشيح المسبق |
| ePM10 | ≥10 ميكرومتر | Commercial HVAC |
| ePM2.5 | .52.5 ميكرومتر | Indoor air quality control |
| ePM1 | ≥1 ميكرومتر | High-performance ventilation |
This shift allows engineers to better match filters with real environmental requirements.
4. Test Methods and Key Parameters
To evaluate general air filters, several parameters are measured:
4.1 كفاءة الترشيح
- Based on particle size distribution
- Measured across multiple size ranges
4.2 هبوط الضغط
- Indicates airflow resistance
- Directly impacts energy consumption
4.3 القدرة على الاحتفاظ بالغبار
- Determines service life
- Evaluated through loading tests
4.4 Discharge/Conditioning Process
- Required in ISO 16890
- Simulates real operating conditions
5. Test Rig Systems for Air Filter Evaluation
A complete air filter test system typically includes:
- نظام توليد الهباء الجوي
- Particle measurement instruments
- نظام التحكم في تدفق الهواء
- نظام تغذية الغبار
- برامج الحصول على البيانات
These systems must provide:
✔ Stable airflow control
✔ Accurate particle measurement
✔ Repeatable test conditions
6. الحل الموصى به: SCPUR SC-16890 Test System
For laboratories and manufacturers seeking compliance with ISO 16890, ال
SC-16890 نظام اختبار مرشح التهوية العام from SCPUR is a highly reliable solution.
المزايا الرئيسية
- Fully compliant with ISO 16890
- دقيقة PM1 / PM2.5 / قياس كفاءة PM10
- Automated test procedures for improved consistency
- تحكم ثابت في تدفق الهواء وتحميل الغبار
- User-friendly software for data analysis
التطبيقات النموذجية
- HVAC filter manufacturers
- مختبرات اختبار الطرف الثالث
- Research institutions
- Quality control departments
👉 The SC-16890 system ensures precise, repeatable, and standards-compliant testing, helping users improve product quality and meet international requirements.
7. Why Proper Testing Matters
Accurate testing of general air filters ensures:
- Compliance with international standards
- Improved indoor air quality
- Reduced energy consumption
- Better product competitiveness
للمصنعين, investing in advanced test systems is essential to remain competitive in the global market.
8. خاتمة
With the adoption of ايزو 16890, general air filter testing has shifted toward more realistic, particle-based evaluation methods.
Understanding testing standards, أنظمة التصنيف, and selecting the right test rig—such as the SC-16890—are critical steps in ensuring reliable filter performance and market compliance.
