Our Instruments

Density measurement is expressed as weight per unit volume and the measurement is performed at a temperature of 23 °C.

Fields of application:

• It can be used to identify materials;

• Indication of  average density of manufactured items;

• Identifying changes in density due to loss of plasticisers, absorption of solvents or substances that are in contact with the material;

• Determining of the presence of elastomers or pollutants.

In the field of plastics it is very important to determine the percentage of moisture contained in polymers especially for strongly hygroscopic polymers such as nylon (PA).

As for strongly hygroscopic polymers, the processes have to occur at low rate water content in order to avoid variations of final properties of manufactured items.

As for assessing moisture content it is an important rate for quality control of incoming raw materials.

Among all the available methods that can be involved to determine this value, the Karl Fischer method is the most versatile and efficient that coud be involved to meet all the requirements as it is a sensitive test that can trace also small water traces in samples down to a few parts per million.

The instrument process put electrolysis as a basis and it measures the iodine content that is generated stoichiometrically depending on water contained in the sample.

The HunterLab ColorQuest/XE dual beam spectrophotometer enables us to assess colour in  moulded samples and/or manufactured pieces to be measured according to two methods: reflection and transmission. Information obtained from this colour measurement are particularly useful to compare colours of manufactured items with a standard reference. Otherwise it can be involved to identify colour variations after a period of material several usage that can lead to degradation caused by UV radiation, as example.