Stability measurement

It is virtually impossible to assess a sample’s aging behavior from its condition at a single point in time.

That’s why Metrohm offers you stability measuring instruments that allow you to perform automated accelerated aging tests for natural oils and fats, fat-containing foods and cosmetics, biodiesel, and chlorine-containing polymers such as PVC. During these tests, the decay reactions that take place in the samples – i.e., their decomposition by oxidation or thermal degradation – are reproduced at elevated temperatures and thus drastically increased speeds.

The induction time, also known as oxidation stability index (OSI), is measured – or, in the case of polymers, the stability time. Below you can see Metrohm’s dedicated instruments for the above-mentioned sample types. All of these systems are compliant with national and international standards for stability measurement.


  • Rancimat

    Available Options Rancimat

    The 892 Professional Rancimat measures the oxidation stability of natural oils and fats. It is also suited to test fat-containing foods and cosmetics.

    • Suitable for product quality control and for research
    • Compliant with standards including AOCS Cd 12b-92 and ISO 6886
    Details
  • Biodiesel Rancimat

    Available Options Biodiesel Rancimat for oxidation stability measurement of biodiesel and biodiesel blends

    The 893 Professional Biodiesel Rancimat determines the oxidation stability of biodiesel and biodiesel blends.

    • Suitable for biodiesel oxidation stability testing as required by law and for research
    • Resistant materials that withstand the aggressive samples
    • Compliant with standards EN 14112, EN 15751, and EN 16568
    Details
  • PVC Thermomat

    Available Options Professional PVC Thermomat for thermostability measurement in PVC

    The 895 Professional PVC Thermomat determines the thermostability of polyvinylchloride (PVC) and other chlorine-containing polymers. It can be used for quality control in all stages of processing and to evaluate stabilizers.

    • Suitable for product quality control and for research
    • Based on ISO 182, Part 3
    Details
  • StabNet

    Available Options

    Dedicated software for stability measurement: instrument control, results calculation, and data storage

    Details

StabNet software

Easy-to-use stability measurement software for instrument control, data acquisition, result calculation, and data management.

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PTT Chemical Public Company Ltd., Thailand

"We have been using Metrohm instruments for 20 years. […] Metrohm instruments are very good in terms of reliability and precision. Moreover, Metrohm supports us with good after-sales service."

Nakul Ketkeaw, vice
president of the Laboratory Service Center of PTT Chemical Public Company Ltd., Thailand