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Mandatory controls:
- initial boiling temperature
- freezing/thawing temperature
- surface tension
- determination of flash point according to methods
approved by COLIPA (European Cosmetic, Toiletry and
Perfumery Association).
Characterization of products:
- chromatographic profiles
- identification of solvents
- alcohol content
- pH, acidity, alkalinity.
Aerosol dispensers
- analysis of gas propellant
- safety (pressure, length of flame, etc.).
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