AVM 3000

Chemical free Moisture Analyzer

Water in plastics is a highly unwanted substance that may cause problems in further processing like extruding or injection moulding. Effective drying is an essential process that requires accurate analysis of water content.
Omnitek AVM 3000 is an easy to use, ISO 15512 - method C complying instrument for manometric analysis of moisture in plastics like ...
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Water in plastics is a highly unwanted substance that may cause problems in further processing like extruding or injection moulding. Effective drying is an essential process that requires accurate analysis of water content.
 
Three alternative analysis methods are specified in International Standard ISO 15512:
  1. Method A is an extraction method using anhydrous methanol followed by a Karl Fischer titration of the extracted water. It can be used for all plastics and is applicable to granules having a maximum size of 4 mm ×4 mm ×3 mm.
  2. Method B is a vaporization method using heated, dry air or nitrogen gas to evaporate the water, followed by a Karl Fischer titration of the collected water. It can be used for all plastics and is applicable to granules smaller than 4 mm ×4 mm ×3 mm.
  3. Method C is a manometric method. The water content is determined from the increase in pressure which results when the water is evaporated under a vacuum. This method is not applicable to plastic samples containing volatile compounds, other than water, in amounts contributing significantly to the vapour pressure at room temperature. 


The temperature settings for the vaporization method described in International Standard ISO 15512 are not specified (both method B and C). For the manometric method, a temperature of 200 °C is often used. However, for some condensation materials this might be too high and could e.g. cause generation of water due to a condensation reaction. The heating temperature should be optimized concerning the material to be tested, the equipment in use and the practical circumstances. If the temperature is too low, the total amount of water in the material to be tested will not be evaporated completely, whereas too high temperatures cause water generation due to effects like degradation and condensation reactions
  • Very easy to use
  • No need for chemicals
  • Does not require highly trained laboratory operators
  • Can be deployed in a production environment just as easily as in the laboratory
  • Hardly uses any consumables
  • Very robust, extremely low on maintenance
  • Reliable and repeatable results deep into the PPM range

This product is compliant with the following test methods:

  • ISO 15512
  • Moisture Analyzer
  • Plastics