Specialist of the metal packagings and aerosol dispensers
Aerosol safety depends on the behaviour of the pressurised container, the flammability of the product and the way it is dispensed.
LEREM designs the test programme around your aerosol dispenser, its formulation and the purpose of the study. The same equipment can support product development, compare several solutions or provide the results required before market launch.
Tests are selected according to the type of aerosol and the decision you need to make. LEREM’s team helps you focus on the measurements that are genuinely useful.
Assess the spray, foam or gel and determine the appropriate flammability classification.
Observe deformation, pressure resistance and behaviour through to bursting.
Characterise particle size, spray pattern and spray angle.
The method depends on how the product is delivered from the dispenser. LEREM carries out tests on aerosol sprays as well as products dispensed as foam or gel.
The results are used to determine the applicable classification and provide the information required for labelling.
Spray ignition distance
Enclosed-space ignition test
Flammability of foams and gels
Mechanical tests verify container resistance and monitor its behaviour through to bursting. They can be carried out on empty containers or on dispensers fitted with their valve.
The test setup is adapted to the material and format under study, particularly for certain glass or plastic containers.
Proof pressure and deformation monitoring
Burst pressure determination
Internal pressure measurement at 50°C
Spray quality can be as important as container compliance. Measurements are selected according to the formulation and intended use.
Particle size distribution measured by laser diffraction.
Observation of spray geometry and distribution.
Comparison of formulations, valves, actuators or batches.
Some studies require sample preparation or a protocol tailored to the container material.
LEREM can fill the dispensers required for testing without using an industrial production line. Feasibility is assessed according to the product, propellant and quantities required.
The protocol takes account of the material and conditions of use. It may include cold or hot drop tests with the product or test liquids, as well as hot-air testing.
Tell us about the dispenser, the product and the purpose of the study. LEREM’s team will help you define the relevant tests and the samples required.
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