Liquid Viewer

This Liquid Viewer offers a simple method to detect visible particles in transparent liquids. It is designed according to the European Pharmacopoeia Specification.

Features:

• According to the European Pharmacopoeia Specification <2.9.20>
• Matt black panel of appropriate size held in a vertical position.
• Non-glare white panel of appropriate size held in a vertical position next to the black panel.
• An adjustable lamp-holder fitted with a suitable, shaded, white-light source and with a suitable light diffuser (a viewing illuminator containing two 13 W fluorescent tubes, each 525 mm in length, is suitable).
• The intensity of illumination at the viewing point is maintained between 2000 lux and 3750 lux. Higher values are preferable for coloured glass and plastic containers.

Method:

• Remove any adherent labels from the container and wash and dry the outside.
• Gently swirl or invert the container, ensuring that air bubbles are not introduced
• Observe for about 5 seconds in front of the white panel.
• Repeat the procedure in front of the black panel.
• Record the presence of any particles.