4. Quality controls and standards

4.1 Manufacturing controls

Controls must be carried out at all stages of the study:

• control of active ingredients ;

• control of solvents, additives, etc. ;

• control of finished products.

These checks cover compatibility, vapor pressure, internal pressure (the packer must supply developed pressures at 20 and 50 ˚C), storage stability, leak tightness, technical performance of the formula and examination of its effectiveness, artificial aging (taking into account the geographical destination and conditions of use).

• Checks before filling aerosol containers

  The aim is...