Understanding EN 1822 HEPA Filter Testing

The International Standard for HEPA & ULPA Filter Evaluation.

بيت

>

في 1822

Overview of the EN 1822 Standar

Overview of the EN 1822 معيار

في 1822 is an international standard used to evaluate the performance of high-efficiency particulate air (هيبا) and ultra-low penetration air (غضب) المرشحات. The standard defines test methods for measuring filtration efficiency, identifying the most penetrating particle size (MPPS), and verifying filter integrity through leak detection.

Ensuring high-efficiency filters provide reliable particle removal performance under defined test conditions.

Cleanroom Manufacturing

Cleanroom Manufacturing

Pharmaceutical Production

Pharmaceutical Production

Semiconductor Facilities

Semiconductor Facilities

Laboratory Filtration Systems

Laboratory Filtration Systems

Key Test Methods in EN1822

MPPS Efficiency Measurement

MPPS Efficiency Measurement

One of the core principles of EN1822 is testing filter efficiency at the Most Penetrating Particle Size (MPPS).

The MPPS represents the particle size that is most difficult for the filter to capture. Testing at this size ensures that the filter meets its required performance under the most challenging conditions.

Leak Detection Test

In addition to efficiency measurement, EN1822 requires leak testing to verify the integrity of the filter.

During the leak scan test:

  • an aerosol is introduced upstream of the filter
  • a scanning probe moves across the downstream surface
  • particle concentration is monitored to identify potential leaks

This test ensures that the filter frame, seal, and media are free from local defects.

Leak Detection Test

Filter Classification According to EN1822

EN1822 classifies filters based on their measured efficiency at the MPPS. Typical HEPA classifications include:

فصل

Minimum Efficiency

ح13

≥ 99.95%

ح14

≥ 99.995%

ULPA filters extend to higher classes such as U15, U16, and U17 with even stricter efficiency requirements.

Typical Test Configuration

A typical EN1822 test system includes several key components. These elements work together to ensure stable aerosol generation and accurate particle measurement during testing.
وحدات توليد الهباء الجوي

مولد الهباء الجوي

Dust Feeder Module

Upstream Sampling System

Pressure Drop Monitoring Sensors

Particle Counter

radar-line

Scanning Probe For Leak Detection

نكهة

Controlled Airflow System

مصممة للعمل في العالم الحقيقي

Application in Filter Manufacturing

Stable and repeatable measurement conditions are essential to ensure that efficiency results reflect actual filter performance. EN1822 testing is commonly used in:

EN1822 Testing Solutions

Filtration testing systems designed for EN1822 procedures typically support:

  • MPPS هfficiency Measurement
  • Automated Leak سcanning
  • سtable Aerosol زeneration
  • صrecise صarticle جounting

These systems enable laboratories and manufacturers to perform reliable HEPA filter verification according to international standards.

منضدة اختبار تسرب مرشح هيبا

ناقش متطلبات اختبار الترشيح لديك

أخبرنا بنوع الفلتر الخاص بك, معيار الاختبار, وسيناريو التطبيق.

سيساعدك مهندسونا في تحديد حل الاختبار الأكثر ملاءمة - بدءًا من الأنظمة القياسية وحتى الأنظمة الأساسية المخصصة بالكامل.

تحقق من جودتك من خلال أنظمة الاختبار القياسية العالمية

خبراؤنا على استعداد لتصميم حل مخصص لك. أخبرنا عن مشروعك, ودعنا نتحقق من جودتك بدقة وسرعة.

مخصص ر&د & حلول مخصصة

مخصص ر&د & حلول مخصصة

الامتثال للمعايير العالمية

الامتثال للمعايير العالمية

100% نظام برمجي مطور ذاتيًا

100% نظام برمجي مطور ذاتيًا

المعايرة عن بعد & الدعم العالمي

المعايرة عن بعد & الدعم العالمي

اتصل بنا

*نحن نحترم سريتك وجميع المعلومات محمية.

قبل أن تذهب...

غير متأكد من المعيار الدولي الذي ينطبق على مشروعك? تحدث مع كبار المهندسين لدينا للحصول على تقييم فني شخصي بناءً على خبرتنا الصناعية الممتدة على مدار 10 سنوات.

*نحن نحترم سريتك وجميع المعلومات محمية.