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Technical cleanliness -
The relevance of
technically clean components

Technical cleanliness is crucial to ensure the quality and reliability of components and products. It protects against harmful particles that can lead to system failures and increased wear and tear, and is particularly important in industries such as the automotive and electronics industries. A residual dirt analysis helps to identify and evaluate contamination. With strict standards such as VDA 19 and ISO 16232:2018 as well as effective cleaning and analysis methods, a high level of technical cleanliness is guaranteed. We support you in meeting the highest cleanliness requirements.

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Importance of technical cleanliness

Technical cleanliness plays a crucial role in the manufacturing industry and refers to the level of cleanliness of parts and components. It ensures that no unwanted particles or contaminants affect the quality, functionality or service life of a product. In industries such as automotive and electronics, this compliance is particularly important as contamination can have serious consequences, such as blocked parts, broken electrical connections or fire hazards. Technical cleanliness ensures reliable product performance, increased production efficiency and lower costs in the long term. Assembly processes also benefit from cleaner components and systems through less wear and a longer service life. Overall, ensuring cleanliness improves product quality and reduces the rate of complaints.

Definition of technical cleanliness

Technical cleanliness describes components that are free of harmful particles in order to ensure functionality and service life. A residual dirt analysis quantifies and evaluates existing contamination and ensures that the particle content is reduced to a harmless level. A distinction is made between particulate and filmic contamination: particles such as metal chips, fibers or rust and residues of oils, greases or chemicals. Both types pose risks because larger particles can block mechanical systems and interrupt electrical connections.

Technical cleanliness is essential for many industries, especially in areas such as the automotive industry, medical technology and electrical engineering, where contamination can lead to malfunctions and increased wear. It not only serves to ensure quality, but also protects against costly failures and complaints.

Norms and standards for technical cleanliness

To ensure product quality and reliability, specific standards for technical cleanliness are crucial. VDA 19 and ISO 16232:2018 regulate requirements for clean manufacturing along the entire production chain - from manufacturing and assembly to packaging, transport and storage. 

The most important factors for maintaining technical cleanliness include careful planning of cleaning and assembly processes, setting up cleanliness-compliant production areas, safe storage and packaging, and training and equipping staff. By taking these standards into account, the risk of contamination is significantly reduced.

Formation of pollution
and possible consequences

Contamination on components can come from various sources and pose a major challenge. Particles often reach the components from outside or via the process chain, but contamination also occurs in the production process itself. Typical particles include lint, fibers, and metallic and non-metallic residues. These can cause problems on sensitive components such as circuit boards: They can cause short circuits when particles connect electrical conductors, or cause insulation failure by impairing the insulating properties. Corrosive particles can also cause oxidation on conductors and deteriorate signal quality. Mechanical stress from larger particles can cause cracks or breaks and endanger structural integrity. Controlling technical cleanliness is therefore crucial to minimize these risks.

Targeted planning of manufacturing processes and the implementation of cleanliness-compliant production areas are the basis for minimizing particle contamination. Packaging, transport and storage of components also play an important role in keeping external influences away. Employee training and specific work clothing also help to reduce the risk of contamination.

Ensuring technical cleanliness

Various methods for residual dirt analysis are used for cleaning and particle removal. Gravimetry measures the degree of contamination of a component, while light microscopy and SEM / EDS analysis determine the type and size of the particles. In combination with preventive measures, these analysis methods ensure a high level of technical cleanliness, which contributes to quality assurance and extending the service life of products.

This example clearly shows how the number of particles has developed after the initial analysis phase as a result of our recommended measures. The number of particles on the component has decreased to a very low number.

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CasoCleanCheck – Quality Improvement GbR
Am Gewerbepark 43
D-64823 Groß-Umstadt
DeutschlandGermany