---
type: "WebPage"
title: "Fluid qualification according to DASSAULT DGQT 0.4.2.0065"
description: "Qualification and validation of process fluids according to DASSAULT Aviation specification DGQT 0.4.2.0065 In nuclear construction and military and business aerospace, validating cutting, cleaning, or temporary protective chemicals is an important step. The DASSAULT Aviation DGQT 0.4.2.0065 directive sets strict..."
resource: "https://filab.fr/en/fluid-qualification-according-to-dassault-dgqt-0-4-2-0065/"
tags: ["EN", "pll_6abd1bfaade2e"]
timestamp: "2026-10-01T06:48:39Z"
published: "2026-09-30T14:26:22Z"
language: "en"
author: "Laure Durieux"
---

# Fluid qualification according to DASSAULT DGQT 0.4.2.0065

## Qualification and validation of process fluids according to DASSAULT Aviation specification DGQT 0.4.2.0065

In nuclear construction and [military and business](https://filab.fr/en/sectors-of-activity/laboratory-analysis-aeronautics-aerospace.md) aerospace, validating cutting, cleaning, or temporary protective chemicals is an important step. The **DASSAULT Aviation DGQT 0.4.2.0065** directive sets strict safety and performance requirements for fluids used on assembly lines and in machining.

Filab laboratory supports you in characterizing your products and carrying out the regulatory tests required to obtain your [Dassault Aviation approval](https://filab.fr/en/about-us/accreditations-en/laboratory-approved-dassault-aviation.md).

## The challenges of specification DGQT 0.4.2.0065

Aerospace structures combine high-performance [metal alloys](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/analysis-of-metallic-alloys-for-the-aeronautical-industry.md) with lightweight composite materials. Applying an unqualified fluid can cause invisible but irreversible damage. 

Qualification according to the **DGQT 0.4.2.0065** standard ensures that the process fluid :

**Does not cause [corrosion](https://filab.fr/en/our-services/our-expertise-services/laboratory-analysis-deposit-contamination/laboratory-expertise-and-analysis-of-corrosion.md)** (pitting, intergranular, or stress corrosion) on [aluminum alloys](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/laboratory-analysis-aluminum-alloys.md), [titanium](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/laboratory-analysis-titanium-alloys.md), and high-strength steels.

**Does not damage [polymers](https://filab.fr/en/our-services/our-analysis-services/laboratory-material-testing/laboratory-polymer-characterization.md) or [composites](https://filab.fr/en/our-services/our-analysis-services/laboratory-material-testing/laboratory-expertise-composites.md)** through direct or indirect contact during manufacturing or maintenance operations.

****Preserves the integrity of coatings** and [surface treatments](https://filab.fr/en/our-services/our-analysis-services/laboratory-surface-characterization/analysis-of-a-surface-treatment-by-anodizing.md) (anodizing, chromate or sulfuric-tartaric conversion coatings, and paints).**

**Does not leave aggressive residues** that could impair adhesion during subsequent bonding or painting operations.

## Our testing services according to directive DGQT 0.4.2.0065

Our laboratory testing programs faithfully reproduce the operational exposure conditions required by Dassault Aviation’s General Directorate of Total Quality (DGQT):

### Safety testing on metals and alloys

- **Total and partial immersion corrosion:** evaluation on aerospace aluminium alloys, titanium and steels.
- **Determination of mass loss:** precise quantification of chemical attack on calibrated test specimens.
- **Stress corrosion cracking (SCC):** validation on components under mechanical stress.
- **Staining potential:** verification that no discoloration or staining occurs on sensitive alloys.

### Assessment of material and surface-condition interactions

- **Compatibility with [paints](https://filab.fr/en/our-services/our-analysis-services/polymer-materials-analysis-laboratory/laboratory-analysis-paint-varnish.md) and sealants:** assessment of swelling prevention and retention of adhesion for seals and primary coatings.
- **Residue analysis after drying:** assessment of residue levels and ease of rinsing/cleaning.

## Why entrust your DGQT 0.4.2.0065 testing to our laboratory?

| **Requirement** | **Our commitment** |
| --- | --- |
| **ISO 17025 accreditation** | A rigorous quality framework ensuring metrological traceability and the legal validity of your test reports. |
| **Aerospace expertise** | Proven expertise in manufacturers’ standards (Dassault DGQT, Safran PR 1500/6300, Airbus AIMS). |
| **Post-test diagnostics** | In the event of non-compliance, our engineers characterize the degradation mechanism (SEM-EDX, FTIR) to guide the reformulation of your product. |
| **Compliant deliverables** | Delivery of a complete technical dossier structured according to the format expected by Dassault Aviation’s Quality departments. |

## our safety testing

[Safety testing of cutting fluids according to the PCS-4001 standard](https://filab.fr/en.md)

[Safety testing of degreasing processes according to the DMP 12-300 standard](https://filab.fr/nos-prestations/analyse/laboratoire-analysis-metallurgiques/essais-innocuite-dmp-12300/)

[Safety testing of cutting fluids according to the PCS-4002 standard](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/safety-testing-in-accordance-with-pcs-4002-requirements-in-the-laboratory.md)

[Safety testing of temporary-use ingredients PR-6300 / PR-1500](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/safety-test-safran-pr-6300.md)

## Our FAQ

 How can i get a quote from FILAB laboratory?
To receive a quote from the laboratory, you can contact our teams via our contact form, by telephone or by email.
Simply send us your requirements (material type, requested analysis, applicable standard, urgency, number of samples, etc.). We will then send you a customized technical and pricing proposal within 24–48 hours.

 Quelle est la durée typique des analysis au laboratoire FILAB ?
Analysis turnaround times at the FILAB laboratory vary depending on the type of analysis and the complexity of the expertise project.
FILAB is nevertheless committed to providing fast turnaround times tailored to your industrial constraints and urgent requirements.

 What types of fluids must comply with specification DGQT 0.4.2.0065?
The fluids primarily concerned are soluble or straight cutting fluids for machining aluminum and titanium alloys, degreasing and cleaning liquids, inter-operational solvents, and temporary corrosion-protection fluids.

 Can DGQT 0.4.2.0065 testing be combined with other aerospace standards (Airbus AIMS, Safran PR 1500)?
Yes. Several material compatibility and corrosion tests are similar or complementary across AIMS 12-10-000, PR 1500/PR 6300, and DGQT 0.4.2.0065. Our laboratory can design a shared qualification program to reduce your approval costs and timelines.