Testing for contaminants in industrial fluids

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Controlling contamination that may affect your industrial fluids

In the aerospace and nuclear sectors, the quality of lubricants, hydraulic oils, cutting fluids, coolants, solvents and process baths is essential to equipment reliability and manufacturing control. The presence of particles, organic residues, metallic elements, water or degradation products can alter a fluid’s properties and contribute to malfunctions, deposits, corrosion or premature wear.

The testing of industrial fluids makes it possible to compare a compliant fluid with a suspect sample, identify differences in composition and guide corrective actions. Filab laboratory develops an analytical strategy tailored to the nature of the fluid, its use context and the contaminants being investigated.

Identifying organic and inorganic contaminants

Depending on the matrix and the issue encountered, the Filab laboratory can investigate metallic or mineral particles, trace elements, water, foreign organic compounds, solvent residues, additives, degradation products, incompatible oils, or contaminants originating from materials in contact with the fluid. Characterizing deposits and particles extracted from the fluid can complement the investigation.

The Filab laboratory also supports you with the following services:

Using complementary analytical methods

Filab laboratory uses characterization techniques suited to the challenges of industrial fluid testing: FTIR and Raman spectroscopy for compound identification, chromatography for studying organic substances, elemental analysis to detect metals and minerals, and microscopy combined with chemical analysis to characterize particles and deposits.

Supporting failure analysis and corrective actions

Analyzing a fluid can help objectively document an operating deviation and develop hypotheses about its origin. Identifying contaminants helps quality, production, maintenance and R&D teams target checks on equipment, circuits, filtration operations, raw materials or cleaning steps. It provides technical information for prioritizing corrective actions and preventing the issue from recurring.

Testing for contaminants in industrial fluids: a targeted analytical approach

The testing for contaminants in industrial fluids is based on a step-by-step approach: defining the need, studying sampling conditions, physicochemical characterization, identifying detected species and interpreting the results in relation to the process. This approach can help investigate production drift, equipment failure, material non-conformity or accidental pollution.

Filab laboratory supports manufacturers in examining new fluids, fluids in service or fluids analyzed after an incident. Investigations may focus in particular on particulate contaminants, metallic elements, organic compounds, moisture, cleaning residues and oxidation or degradation products.

Adapting analysis to the fluid matrix and expected detection level

The testing program is defined based on the nature of the fluid, its use, the available volume and the objective of the investigation. Complementary techniques can establish an overall profile, then confirm the identity and distribution of the detected contaminants. This approach limits irrelevant analysis and provides results that support industrial decision-making.

Characterizing particles, metals and organic compounds

Observing and analyzing particles can help distinguish wear debris, contaminants from the environment, process residues or particles originating from components in contact with the fluid. When the investigation forms part of a broader process issue, it can be complemented by an industrial process audit.

Securing processes in the aerospace and nuclear sectors

Process control requirements are particularly stringent for critical applications. Filab laboratory supports projects involving analysis for the energy and nuclear sectors, as well as industrial environments where traceability, understanding deviations and result reliability are decisive.

Submit your requirements and samples to define the analysis protocol

Contact the Filab laboratory, specifying the type of fluid, its application, the context of the anomaly, the materials in contact with it and the suspected contaminants. If possible, provide a reference sample, along with information on sampling, storage and usage conditions. Define the appropriate testing programme with our teams. Submit the samples according to the instructions provided. Use the results to implement the appropriate corrective actions.

Frequently asked questions

How can the source of contamination in an industrial fluid be identified?

To identify the source of contamination, Filab laboratory compares the fluid concerned with a reference sample whenever possible. The analytical results are compared with the process history, materials in contact with the fluid, maintenance operations and operating conditions in order to distinguish external pollution, internal wear, fluid mixing or product degradation.

Which contaminants can be tested for in oil, hydraulic fluid or an industrial bath?

The contaminants investigated may include wear particles, metals, mineral fillers, water, solvents, foreign oils, cleaning residues, additives or compounds resulting from fluid ageing. The scope is defined on a case-by-case basis with Filab laboratory.

Which analytical techniques are used to test industrial fluids?

Techniques are selected according to the fluid and the suspected contaminant. They may combine elemental analysis, chromatography, spectroscopy and microscopy with chemical analysis of particles. Filab laboratory favors complementary methods to link the nature of the contaminant to a potential source.

Why analyze an industrial fluid after process drift or equipment failure?

After process drift or equipment failure, fluid analysis can verify whether contamination is present, characterize its nature and guide the search for its source. The results can support maintenance, quality or failure analysis investigations carried out with Filab laboratory.

How can you launch a contaminant investigation on an industrial fluid at the Filab laboratory?

To get started, provide the Filab laboratory with the available information about the fluid, the process and the observed anomaly. A technical discussion helps define the necessary sampling, the relevant analysis and the comparison data needed to interpret the results.