Fluid qualification testing according to Rolls-Royce CSS 129 and CSS 131

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Secure the qualification of your fluids for industrial applications

In the aerospace industry, qualifying a fluid intended for an industrial application requires verifying its compliance with the applicable technical requirements, while controlling the risks of formulation variation, contamination or performance drift. The fluid qualification tests according to Rolls-Royce CSS 129 and CSS 131 address this challenge by providing usable analytical data to document a qualification file, compare batches or investigate non-conformities.

The Filab laboratory works with your teams to define a test program suited to the applicable standard, the intended use of the fluid and the technical information available. This approach makes it possible to target the relevant characteristics, organise sampling and provide interpretable results for your quality process.

Define a test program suited to the fluid

The testing strategy depends on the product’s function, formulation, delivery condition and specification requirements. The Filab laboratory reviews the available information to define controls consistent with the scope of Rolls-Royce CSS 129 and CSS 131 testing.

Detect formulation and production deviations

Analytically comparing a batch with a reference makes it possible to highlight differences that could affect the expected properties of the fluid. It provides valuable support when changing suppliers, modifying a formulation, receiving a batch or monitoring production.

Provide the applicable standard and information on intended use

To define the testing scope, it is recommended to provide the applicable version of the Rolls-Royce requirements, the available acceptance criteria, the fluid’s technical data sheet, its intended use and the objective of the study. This information enables the Filab laboratory to confirm the analytical scope.

Analytical capabilities and support from the Filab laboratory

The Filab laboratory uses physicochemical characterisation methods and instrumental capabilities suited to the nature of the fluid and the applicable protocol. The tests may contribute in particular to identifying the composition, assessing physical properties and investigating deviations between a sample and a reference.

When flow behaviour is a critical parameter, our expertise in rheological analysis of complex fluids can complement the assessment. For projects requiring a comprehensive approach, the Filab laboratory also offers an industrial process audit to identify the parameters likely to influence fluid compliance.

Characterise the relevant physicochemical properties

Depending on the selected protocol, characterization may cover physical properties, composition parameters, or cleanliness and stability indicators. The methods used are selected according to the matrix, the thresholds to be assessed, and the qualification objective.

Filab laboratory also supports you with the following services:

Support investigations in the event of non-conformity

When a deviation is identified, the Filab laboratory can help guide the investigation through targeted characterisation of the samples. The results can support decisions regarding sorting, release, reformulation or corrective action, in line with your internal criteria.

Prepare representative sampling

The samples must be identified and packaged in a way that preserves their integrity until receipt. In the event of a comparison, it is useful to provide both the batch to be examined and the reference sample, along with their respective traceability information.

Start your qualification study

Submit your requirements, provide the applicable Rolls-Royce standard, share the technical information and send the samples to be assessed. Filab laboratory evaluates feasibility, defines the analytical program and supports you through to the delivery of the results. For broader material verification needs, also discover our ISO 17025-accredited material testing.

Frequently asked questions

How can a fluid be qualified according to the requirements of Rolls-Royce CSS 129 and CSS 131?

The Filab laboratory reviews your requirements, the applicable version of the Rolls-Royce standard and the characteristics of the fluid. A test program is then developed to generate the data required for your qualification file, batch comparison or technical investigation.

Which fluids can undergo testing according to Rolls-Royce CSS 129 and CSS 131?

The tests apply to the fluids covered by the technical requirements applicable to your project. The exact nature of the controls is confirmed after reviewing the type and function of the fluid, as well as the qualification documentation provided by the contracting party.

Why compare a production batch with a reference sample?

Comparing a batch with a reference helps objectively assess an observed difference and evaluate its compatibility with the defined criteria. This approach is particularly useful for documenting production drift or analysing the impact of a raw material change.

What information should be provided to the Filab laboratory before testing begins?

Before starting, send the applicable standard, the criteria to be verified, the product’s technical information and representative samples. Filab laboratory can assist you in defining the appropriate quantities, packaging and shipping arrangements.

How do you start fluid qualification testing with Filab laboratory?

Contact Filab laboratory with your specifications and the information available about the fluid. After reviewing your request, an appropriate testing scope tailored to the applicable requirements will be proposed.