IUTA Institute for Energy and Environmental Technology e.V. Hall 7 / M25

Exhibitor Profile

General measurement in the field of gas adsorption and catalysis, odors, toxic substances (TIC and TIM), particles, aerosol filtration, compressed air filtration, droplet filtration and validation of coalescence filters, validation of air purifiers.

Specific measurement and filter testing according to: DIN EN 779 / ISO 16890 (particulate air filters for general ventilation; HVAC), DIN EN 1822 (high efficiency particle filters), DIN 71460 / ISO 11155 (Cabin air filters), ISO 12500 (Compressed air filter), ISO 8573 (Compressed air), EN 13725 (Odour filter), GB/T 18801-2008 (air purifier), DIN EN ISO 10121 (gas phase air cleaning media and devices).

Current research topics:

Removal of particles, odours and (toxic) gases, filter benchmarking and functionalization, defined filter aging with cigarette smoke and diesel soot, sustainability of compressed air filtration, catalytic reduction of NOx and VOC and improvement of filter evaluation methods and instrumentation.

Products / Markets

Product Index

  • Analytische Messtechnik
  • Filtermedienprüfung
  • Filtertesteinrichtungen
  • HEPA & ULPA Filterprüfung
  • Luftfilterprüfung
  • Membrantestanlagen
  • Nanofiltration
  • Nanopartikelanalyse
  • Nanopartikelherstellung
  • Nanopartikelmessung
  • Online Particle Analysis
  • Partikelanalysemethoden
  • Partikelformanalyse
  • Partikelgrößenanalyse
  • Partikelgrößenverteilungsanalyse
  • Probenahme
  • Prüfdienstleistungen
  • Testeinrichtung

Market Scope

  • Automobilindustrie
  • Chemische Industrie
  • Elektronik-, Mikroelektronikindustrie
  • Farben-, Pigment-, Beschichtungsindustrie
  • Filtrations- und Separationsindustrie
  • Luft- und Raumfahrtindustrie
  • Mineralöl/Öl/Gasproduktion
  • Pharmazeutische Industrie
  • Textilindustrie
  • Umweltschutz

Product Index

  • Air Filter Testing
  • Analytical Instruments
  • Filter Media Testing
  • Filter Test Rigs (Gas/Air)
  • HEPA & ULPA Filter Testing
  • Membrane Testing Plants
  • Nanofiltration
  • Nanoparticle Analysis
  • Nanoparticle Generation
  • Nanoparticle Measurement
  • Online Particle Analysis
  • Particle Measuring Methods
  • Particle Shape Analysis
  • Particle Size Analysis
  • Particle Size Distribution Analysis
  • Sampling Equipment
  • Test Rigs
  • Testing Services

Market Scope

  • Aerospace Industry
  • Automotive Industry
  • Chemical Industries
  • Electronic, Microelectronic Industry
  • Environmental Protection
  • Filtration and Separation Industry
  • Mineral / Oil / Gas Production
  • Paint, Pigments, Coatings Industry
  • Pharmaceutical Industry
  • Textile Industry

Product Index

  • 分析仪器
  • 取样设备
  • 在线颗粒分析
  • 实验台
  • 无菌无尘空气过滤器测试
  • 植物膜測試
  • 测试服务
  • 空气过滤测试
  • 纳米过滤
  • 纳米颗粒分析
  • 纳米颗粒测量
  • 纳米颗粒生成
  • 过滤器试验设备(气体/空气)
  • 过滤媒介测试
  • 颗粒大小分布分析
  • 颗粒大小分析
  • 颗粒形状分析
  • 颗粒测量方法

Market Scope

  •  汽车工业
  • 制药工业
  • 化学工业
  • 油漆、颜料、涂料工业
  • 环境保护
  • 电子、微电子工业
  • 矿产/石油/天然气业
  • 纺织工业
  • 航空航天业
  • 过滤与分离工业

Product Index

  • HEPA ULPA اختبار
  • أجهزة إختبار
  • أجهزة إختبار الفلاتر (غاز/هواء)
  • اختبار تصفية وسائل الاعلام
  • التحاليل
  • الفلترة الدقيقة
  • تحاليل الأجسام الدقيقة
  • تحاليل على الأنبوب (على الخط)
  • تحليل الجسيمات الصفائحية
  • تحليل الجسيمات الصفائحية
  • تصفية الهواء اختبار
  • توليد الأجسام الدقيقة
  • خدمات الاختبار
  • طرق قياس الجسيمات
  • قياس الأجسام الدقيقة
  • محطات اختبار الغشاء
  • معدات سحب العينات
  • موزع أحجام الجسيماتالتحاليل

Market Scope

  • إنتاج المعادن والزيوت والغاز
  • الصناعات الدوائية
  • الصناعة الكيماوية
  • الصناعة النسيجية
  • الطاقة والإمداد بالطاقة
  • صناعات الفلترة وفصل المواد
  • صناعة الألبان
  • صناعة الدهانات والصبغات والتلبيس
  • صناعة السيارات
  • صناعة الفضاء

Product Index

  • Analyse de distribution de tailles de particules
  • Analyse de forme de particules
  • Analyse de nanoparticules
  • Analyse de particules en ligne
  • Analyse de tailles de particules
  • Equipements de collecte d’échantillons
  • Equipements d’essai
  • Equipements d’essais de filtres (gaz/air)
  • Génération de nanoparticules
  • Installations d'essai à membrane
  • Instruments analytiques
  • Mesures de nanoparticules
  • Méthodes de mesures de particules
  • Nanofiltration
  • Services de contrôle
  • Test de filtre à air
  • Test de médias filtrants
  • Test des filtres HEPA et ULPA

Market Scope

  • Energies et fourniture d’énergies
  • Industrie automobile
  • Industrie aérospatiale
  • Industrie chimique
  • Industrie de filtration et de séparation
  • Industrie de peintures, pigments et revêtements
  • Industrie laitière
  • Industrie pharmaceutique
  • Industrie textile
  • Productions minérales / pétrolière / du gaz

Product Index

  • Analisi dimensione particelle
  • Analisi distribuzione dimensione particelle
  • Analisi forma particelle
  • Analisi nanoparticelle
  • Analisi particelle online
  • Attrezzatura di campionatura
  • Banchi di prova
  • Dispositivi test filtro (gas/aria)
  • Generazione nanoparticelle
  • Impianti test membrana
  • Metodi di misurazione particelle
  • Misurazione nanoparticelle
  • Nanofiltrazione
  • Servizi di verifica
  • Strumenti analitici
  • Test di filtraggio HEPA&ULPA
  • Verifica filtro aria
  • Verifica mezzi filtranti

Market Scope

  • Produzioni minerali / petrolio / gas
  • Protezione ambientale
  • Settore aerospaziale
  • Settore automobilistico
  • Settore chimico
  • Settore elettronico, microelettronico
  • Settore filtrazione e separazione
  • Settore industria tessile
  • Settore parafarmaceutico
  • Settore pitture, pigmenti e rivestimenti

Product Index

  • Analiza cząsteczek online
  • Analiza kształtu cząsteczek
  • Analiza nanocząsteczek
  • Analiza rozkładu wielkości cząsteczek
  • Analiza rozmiaru cząsteczek
  • Generowanie nanocząsteczek
  • Metody pomiaru cząsteczek
  • Nanofiltracja
  • Narzędzia analityczne
  • Pomiar nanocząsteczek
  • Stanowiska do testowania
  • Stanowiska do testowania filtrów (gazu/ powietrza)
  • Testowanie filtrów HEPA & ULPA
  • Testowanie filtrów powietrza
  • Testowanie mediów filtrów
  • Urządzenia do pobierania próbek
  • Urządzenia testujące do membran
  • Usługi testowania

Market Scope

  • Filtrowanie i separacja
  • Ochrona środowiska
  • Produkcja farb i lakierów
  • Przemysł chemiczny
  • Przemysł elektroniczny i mikroelektroniczny
  • Przemysł farmaceutyczny
  • Przemysł lotniczy
  • Przemysł samochodowy
  • Przemysł tekstylny
  • Wydobycie minerałów, ropy i gazu

Product Index

  • Análise da dimensão das partículas
  • Análise da distribuição da dimensão das partículas
  • Análise da forma das partículas
  • Análise de nanopartículas
  • Análise de partículas online
  • Banco de ensaios
  • Banco de ensaios para filtros (gases/ar)
  • Equipamento de amostragem
  • Geração de nanopartículas
  • Instrumentos analíticos
  • Medição de nanopartículas
  • Métodos de medição de partículas
  • Nanofiltração
  • Serviços de teste
  • Teste de Filtro de ar
  • Teste de Membrana Plantas
  • Teste de filtro HEPA e ULPA
  • Testes de meios filtrantes

Market Scope

  • Energia, abastecimento de energia
  • Indústria aeroespacial
  • Indústria automóvel
  • Indústria de filtragem e separação
  • Indústria farmacêutica
  • Indústria leiteira
  • Indústria têxtil
  • Indústrias químicas
  • Pintura, pigmentos, indústria de revestimentos
  • Produção mineral / óleo / gás

Product Index

  • HEPA и ULPA фильтр тестирования
  • Анализ наночастиц
  • Анализ потока частиц
  • Анализ размеров частиц
  • Анализ формы частицы
  • Аналитические инструменты
  • Воздушный фильтр Тестирование
  • Измерение наночастиц
  • Испытательная аппаратура
  • Нанофильтрация
  • Оборудование для отбора проб
  • Образование наночастиц
  • Обслуживание Тестирования
  • Размер частиц Анализ
  • Растения мембраны Тестирование
  • Способы измерения частиц
  • Тестирование Фильтрующие материалы
  • Установки для испытания фильтров (газ / воздух)

Market Scope

  • Авиакосмическая промышленность
  • Автомобильная промышленность
  • Добыча минералов/ нефти/ газа
  • Лакокрасочная промышленность
  • Молочная промышленность
  • Отрасль фильтрации и сепарирования
  • Текстильная промышленность
  • Фармацевтическая промышленность
  • Химическая промышленность
  • Энергетика, электроснабжение

Product Index

  • Análisis de distribución de formas de partículas
  • Análisis de formas de particulas.
  • Análisis de formas de partículas
  • Análisis de nanopartículas
  • Análisis de partículas en línea
  • Dispositivos para pruebas
  • Dispositivos para pruebas de filtros (gas/aire)
  • Equipo de muestreo
  • Generación de nanopartículas
  • HEPA y ULPA pruebas de filtros
  • Instrumentos analíticos
  • Medición de nanopartículas
  • Membrana las instalaciones de ensayos
  • Métodos de medición de partículas
  • Nanofiltración
  • Prueba del filtro de aire
  • Pruebas de medios filtrantes
  • Servicios de Pruebas

Market Scope

  • Energía, suministro de energía
  • Industria aeroespacial
  • Industria de la automoción
  • Industria de la filtración y la separación
  • Industria de las pinturas, pigmentos, revestimientos
  • Industria de los productos lácteos
  • Industria farmacéutica
  • Industria textil
  • Industrias químicas
  • Producción de minerales / petróleo / gas

Product Index

  • Analitik Cihazlar
  • Filtre Test Ekipmanları (Gaz/Hava)
  • Filtre ortamı test
  • HEPA ve ULPA filtre testi
  • Hava Filtresi Test
  • Membran Test Donanımları
  • Nanofiltrasyon
  • Nanopartikül Analizi
  • Nanopartikül Ölçümü
  • Nanopartikül Üretimi
  • Numune Alma Ekipmanları
  • Partikül Boyut Dağılımı Analizi
  • Partikül Boyutu Analizi
  • Partikül Ölçüm Yöntemleri
  • Partikül Şekli Analizi
  • Test Donanımları
  • test Hizmetleri
  • Çevrimiçi Partikül Analizi

Market Scope

  • Boya, Pigment, Kaplama Endüstrisi
  • Elektronik, Mikroelektronik Endüstrisi
  • Filtrasyon ve Ayırma Endüstrisi
  • Havacılık Endüstrisi
  • Kimya Endüstrisi
  • Mineral / Petrol / Gaz Üretimi
  • Otomotiv Endüstrisi
  • Tekstil Endüstrisi
  • Çevre Koruma
  • İlaç Endüstrisi

Product Index

  • HEPA & ULPA 필터 테스트
  • 공기 필터 테스트
  • 나노 여과
  • 나노 입자 분석
  • 나노 입자 생성
  • 나노 입자 측정
  • 분리막 시험장
  • 분석 장치
  • 샘플링 장비
  • 시험 장치
  • 여과재 테스트
  • 온라인 입자 분석
  • 입자 측정 방법
  • 입자 크기 분석
  • 입자 크기 분포 분석
  • 입자 형태 분석
  • 테스트 서비스
  • 필터 테스트 장치(가스/공기)

Market Scope

  • 광물 / 석유 / 가스 생산
  • 섬유 산업
  • 여과 및 분리 산업
  • 자동차 산업
  • 전자, 마이크로 전자 산업
  • 제약 산업
  • 페인트, 안료, 도장 산업
  • 항공우주 산업
  • 화학 산업
  • 환경 보호

Product Index

  • HEPAおよびULPAフィルターテスト
  • エアフィルター試験
  • オンライン粒子分析
  • サンプリング装置
  • テスト装置
  • ナノ濾過
  • ナノ粒子分析
  • ナノ粒子測定
  • ナノ粒子生成
  • フィルターテストリグ(ガス・空気)
  • 分析機器
  • 濾過材試験
  • 粒子形状分析
  • 粒子径分析
  • 粒子測定方法
  • 粒度分布分析
  • 膜試験設備
  • 試験サービス

Market Scope

  • 化学工業
  • 医薬品業界
  • 塗料、顔料、コーティング産業
  • 濾過および分離技術工業
  • 環境保護
  • 繊維業界
  • 自動車産業
  • 航空宇宙産業
  • 鉱物・石油・ガス生産
  • 電子、マイクロエレクトロニクス産業

Conference Presentation/s

Conference Session: G9 - Air Filtration II

Test methods for indoor air cleaners with alternative test aerosols and considering ultrafine particles

S. Schumacher*, A. Banda Sanchez, A. Caspari, U. Schneiderwind, C. Asbach, Institut für Energie- und Umwelttechnik (IUTA) e.V., Gemany

In the light of the growing awareness for air pollution, indoor air cleaners are meanwhile widely used to improve the indoor air quality. The market is expected to continue growing strongly during the COVID-19 pandemic as air cleaners may contribute to minimizing infection risks by filtration of virus-carrying droplets. Up to now, there are various national standards to test indoor air cleaners that determine the clean air delivery rate (CADR) as a measure for the cleaning performance. In the light of developing the first international testing standard ISO/IEC 63086 for air cleaners, there is the chance to harmonize and complement the current test methods. In this context, this work deals with the choice of suitable test aerosols and methods for considering ultrafine particles.

Most of the national standards use cigarette smoke as test aerosol. However, the aerosol properties such as concentration, agglomerate size, particle morphology and charge state are expected to strongly depend on the combustion conditions. Furthermore, tobacco smoke is carcinogenic and cigarettes are comparably expensive. However, for introducing an alternative test material to an international standard, different aspects have to be considered. Primarily, the new method has to yield highly repeatable results that allow a comparison between the performances of different appliances. Secondly, it is important for the testing institutions that all materials are globally available at reasonable costs, are easy to handle without risks for the operator and the properties are independent of the supplier. Thirdly, for the manufacturers and consumers it is desirable that the results using the new test material do not strongly differ from the results from the previous national standards using other test materials. Although the latter is not a strict requirement, it may facilitate the introduction of the new test method and increase the acceptance by the consumers.

With this motivation, we investigated the performance of three air cleaners using different filtration technologies with respect to NaCl, KCl and DEHS and compared it to results derived with cigarette smoke. We show that the CADR can be very reproducibly measured with all investigated test aerosols and does not strongly depend on the choice of the material. This means that the filtration efficiency curves in the relevant particle size range are sufficiently flat and discharging effects by the test aerosol are negligible at the low exposures involved.

Concerning the particle size, recent national testing standards typically consider only particles larger than about 0.3 µm since considerably smaller particles are not accessible by optical particle counters. However, a test method considering smaller particles, especially in the ultrafine particle (UFP) size range <0.1 µm, is highly desirable for different reasons: Firstly, it is know that the relevance for health effects increases with decreasing particle size, since smaller can enter deeper the human respiratory system and have a higher surface to volume ratio. Furthermore, the largest fraction of the number size distribution of typical indoor aerosols lies in this size range and is thus most representative for real conditions. Finally, a previous study has shown that the efficiency of air cleaners can considerably degrade with decreasing particle size, especially when using of electret filters (Schumacher, 2018).

For these reasons, we investigated two different methods for determination of a CADR for UFP. As test aerosol, potassium chloride (KCl) particles were generated from an aqueous solution and dispersed in a 30 m³ test chamber, where the air cleaner was located. The first approach used a condensation particle counter (CPC) to measure the total concentration of particles larger than several nanometers, depending on the exact type of CPC used. By fitting the exponential decay curves with and without air cleaner, the CADR was derived. The method is easy to perform, but has the disadvantage that there is generally a dependence on the exact size distribution of the test aerosol. We investigated how large this effect is and how reproducibly size distributions can be generated by using different atomizers.

To circumvent the dependence on the particle size distribution, the CADR was alternatively determined by measuring the decay rates for monodisperse fractions in the UFP range using a differential mobility analyzer (DMA) adjusted to classify one certain particle size. As disadvantage, this restricts information on the cleaning performance to a specific particle size and has worse statistics because of the substantially lower particle concentrations. The results from both methods were evaluated and compared. The findings from the study shall drive the development of new methods in the recently published IEC 63086 testing standard for air cleaners...


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