Test set MT 1 testing station for the analysis of sieve residue – compliant to ISO 787-18

The MT 1 is a testing device for the determination of sieve residue after mechanical water flushing of pigments, extenders and other powder materials in general (known also as Mocker apparatus).

Functional principle
Inside the testing device the pigment or extender to be tested is brought into a circular movement by a water jet rotor which is situated inside the vessel. The fine materials are separated from the coarse materials by the water and the fine particles are flushed through a sieve. The sieve residue is dried and gravimetrically analyzed according to the guidelines. Appropriate sieves (main range ISO 565) must be used according to the different testing guidelines. Furthermore, the recommendations of the DIN EN ISO 787-18 shall be used.

The percentage of the components of impurities is specifically prescribed and is analyzed in order to maintain the desired product quality. The test set MT 1 quickly provides the result which can be adjusted to the prescribed limiting values within the quality control.

Examples for application
The test set MT 1 is used worldwide for the testing of inorganic pigments, aerosils, silanes and carbons and also for materials like zinc oxide, titanium dioxide and other powder materials. Applications for organic polymers are possible in selected cases.