Top quality through laboratory analysis
at BWF Envirotec

Every product is precisely tested for quality in the laboratory.

Analyses of fibres, textiles and assembled filter media are rigorously reviewed by our R&D team. With a multitude of highly specialised analysers, our R&D Competence Centre is optimally equipped for every task and challenge.

Our laboratory analyses monitor projects from the idea to the finished product. In addition to new products, both laboratories also analyse used filter media.

Our chemistry laboratory includes the following equipment:

An FTIR spectrometer for analysing fibres and changes in chemical structure
Extraction plants for testing fibres and fibre-adjacent fabrics
Equipment for testing the chemical and thermal load capacities of filter media
RFA
Test bench for measuring catalyst activity on filter cartridges

The mechanical-technological laboratory has the following equipment:

Devices for determining physical parameters such as air permeability, fibre fitness, maximum tensile force, electrostatic properties or pore size
Various microscopes (reflected and transmitted light) for more accurate assessment of, for example, needle felt, fibres and needles
A scanning electron microscope (SEM) for magnifications of up to 50,000x.

We would be happy to analyse your dust and your current filter medium.

High level of detail with the scanning electron microscope Magnifications of up to 50,000x

With our scanning electron microscope (SEM), we can achieve magnifications of up to 50,000x. As a result, not even the most inconspicuous change or damage to the fibres remains hidden from the trained eyes of our analysts. Even nanofibres become visible, and the SEM can analyse the structure of finishes, such as our needlona^® products.

Do you have any questions?

The FTIR spectrometer as a method of analysis for identifying polymers

Many changes in chemical structure are detected here and recorded in a database. The result is a comprehensive reference database that our specialists can use to determine what dangerous influences a polymer was exposed to, e.g. oxidation. Especially in the case of filter bag analysis, this enables statements to be made regarding the causes and extent of damage to faulty filter bags.

Do you have any questions?

Service spectrum of BWF Envirotec laboratory analysis

BWF Envirotec laboratory analysis conducts various analyses, processes and tests to ensure the quality and safety of our products.

Chemical-physical analyses by BWF Envirotec laboratory analytics

FTIR spectroscopy

Analysis of fibre type and possible fibre damage

Wet-chemical processes

Analysis of the chemical finish
Determination of oil and water repellence (in line with AATCC 118-1972/3M-Test)
Determination of the pH value (in line with DIN EN 1413)
Dust characterisation

Mechanical-technological tests by BWF Envirotec Laboratory Analytics

Analysis of customer samples and determination of physical product parameters

Analysis of fibre fineness (in line with DIN EN ISO 1973)
Analysis of the supporting fabric structure (basis weight, type of bond, fibre density, yarn structure, yarn count)
Determination of air permeability (in line with EN ISO 9237/DIN 53887)
Determination of basis weight (in line with ISO 9073-1)
Determination of thickness and density
Determination of pore size distribution
Tensile tests (in line with ISO 9073-3) and tear propagation tests (in line with DIN 53859-2)
Determination of electrostatic behaviour (in line with DIN 54345-1/DIN 54345-5) and thermal behaviour
Analysis of surface finish