AGELESS EYE indicating tablets verify that all the oxygen has been absorbed from your package. They start off pink in colour but when opened and inserted into the package they will turn blue. Once the package has been sealed and providing that there is sufficient AGELESS for the volume of air the tablet will turn back to pink. The shelf life of AGELESS EYE is limited. Life within the package may not exceed six months. This unfortunately means you cannot rely on it as a monitor for oxygen within the package on a long term basis and it should only be seen as an indication that the AGELESS has worked at the time of initial packaging. It is important to handle the sealed packages carefully. Bad or careless handling can lead to the bag being punctured and oxygen leaking into the package. This is less of a problem with vacuum packed AGELESS because it is immediately obvious when a vacuum pouch has punctured it inflates and loses the rigidity created by the process of vacuum packing.

AGELESS EYE is an oxygen indicator that is blue in normal atmospheres and pink when concentrations of oxygen are below 1%. This colour change is reversible, so that a single AGELESS EYE can be reused many times.

Using The Indicator The indicator is blue when oxygen is present and pink in an oxygen-free container. Remove the indicator from the sample bag (which contains a deoxidising agent) and insert in the container along with the AGELESS Z or RP Agent. At first the indicator will turn blue when it comes into contact with oxygen, but it will turn pink again after the container becomes oxygen free. The indicator lets you confirm the following · Is the container sealed correctly? · Is there a sufficient amount (size and number of pouches) of AGELESS Z or RP Agent in the bag? · Is the container made of high-barrier packing material? (A pink indicator will turn back to blue in a few days if the barrier level is insufficient.) Reseal the bag containing the remaining indicators and store under refridgeration.

Humidity Indicator Cards

Cobalt Chloride impregnated blotter divided into nine
sections which exhibit various colours from blue through
lavender to pink.
The position of the lavender section indicates the relative
humidity of the surrounding air.
These can be used with ESCAL and PTS Bags as a long
term check against punctures and the ingress of moisture.