Testing | Checking | Measuring

Official testing, feasibility studies, aptitude and quality tests of building materials, building components for example for insulating materials, masonry, windows, doors. Experimental determination and calculation of thermal and energy transmittance, thermal conductivity.

Test Laboratory Hygric properties and inorganic materials

The P2 wall test stand at Fraunhofer IBP is specifically designed to determine the sound insulation of wall constructions in accordance with DIN EN ISO 10140-2. Equipped with two surrounding joints to effectively suppress flanking transmissions, it enables reliable testing of highly sound-insulating building components, such as cinema partition walls or installation walls. The test stand allows wall constructions to be mounted up to the bare ceiling or below a lintel with integrated Halfen channels. Its large test opening and drivable equipment provide maximum flexibility for analyzing solid and lightweight walls, mobile partition walls, and facade elements. A standout feature of the P2 test stand is its ability to precisely evaluate sound insulation at low frequencies – a crucial factor for achieving acoustic excellence.

In the Fraunhofer IBP reverberation chamber, the sound absorption coefficient of sound absorbers, acoustic panels, noise barriers, and suspended ceilings can be determined. Similarly, the equivalent sound absorption area of items such as mobile partition walls, seatings and other individual objects can be determined. The measurements are carried out according to DIN EN ISO 354 with diffuse sound incidence. Due to its size and construction, the reverberation chamber also offers the possibility to carry out measurements in the low-frequency range. A unique feature of the reverberation chamber is its sliding door, which allows for sound absorption measurements to be carried out under both diffuse sound incidence and free-field conditions. This flexibility makes it possible to simulate a wide range of realistic acoustic scenarios. Additionally, the reverberation chamber is equipped with a vibration-damped structure that minimizes structure-borne sound transmission, ensuring highly accurate measurement results.

Our test facility for determining the shaft sound level difference of ventilation systems provides a detailed analysis of multi-floor air ducting systems. In accordance with DIN 52210-6:2013, sound transmissions from ventilation ducts, exhaust air systems or individual components such as shaft branches can be measured. The test setup simulates realistic conditions with a variable duct system and separate duct branches for sending and receiving rooms. Strategically placed microphones at important points record the sound levels, delivering precise results to optimize ventilation systems. With a sound level difference of at least 55 dB (Dw), our test facility meets the highest standards for sound insulation analyses.

Our P3 diagonal test facility enables comprehensive analysis of the longitudinal sound insulation and joint insulation of a wide range of wall systems - from lightweight to solid constructions. Its innovative design, consisting of four adjacent rooms and elastic separating joints, allows for detailed simulation of real-world building and usage scenarios. This test bench meets the requirements of DIN EN ISO 10848-2 and DIN EN ISO 10848-3 standards, ensuring reliable, standard-compliant results. State-of-the-art measurement technology permits precise evaluation of airborne and structure-borne sound transmission in all relevant propagation directions, including direct, longitudinal, and diagonal transmission. These measurement results contribute significantly to optimizing the acoustic performance of your wall systems and meeting market requirements.

Our suspended ceiling test facility (P5) enables the determination of the longitudinal sound insulation of suspended ceilings in accordance with the standard DIN EN ISO 10848-2:2018. With flexible configuration options, such as a ceiling that is infinitely height-adjustable, we offer optimum adaptation to individual testing requirements - without the need for structural modifications. A highly sound-insulating partition wall between the source and receiving rooms guarantees precise and reproducible measurement results. This technical setup provides ideal conditions for measuring closed suspended ceilings, grid ceilings and systems with integrated ceiling elements.

Determination of substance release from building materials with intermittent water exposure, determination of individual substances and sum parameters.

The building acoustics test laboratory is recognized by the German Institute for Building Technology (DIBt) as an approved Group I testing center authorized to carry out the full range of performance and quality tests according to DIN 4109.

In the Test Laboratory Emission, environment and hygiene among other things determination of gaseous emissions in test chamber and indoor air, determination of organic emissions from non-metallic automotive components as well as Odor analyses are made.