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Company Histiory

  • 10-19 2017 +Read More

    Sonnen once again is listed on the Approval Supplier List for China’s General Administration of Quality Supervision, Inspection and Quarantine.

  • 06-22 2016 +Read More

    Sonnen’s Fully Automatic Kjeldahl Azotometer won the Science and Technology Achievement Certificate of Henan Province, China.

  • 04-27 2016 +Read More

    Sonnen was awarded for 6 Software Copyright Certification of the related products issued by China’s National Copyright Administration.

  • 07-21 2015 +Read More
    July 21st

    Sonnen was listed on the Approval Supplier List for China’s General Administration of Quality Supervision, Inspection and Quarantine.

  • 04-15 2014 +Read More
    April 15th

    Sonnen was awarded a series of Software Copyright National Certificate for the related products.

  • 03-08 2013 +Read More
    March 8th

    Sonnen successfully developed the intelligent multi-function titration system.

  • 09-06 2012 +Read More
    September 6th

    Sonnen was invited be the Quality and Technical Supervision Bureau of Hebei Province, China to participate the draft of the Measuring Calibration Specification for Azotometer.

  • 05-13 2011 +Read More
    May 13th

    Sonnen developed the first high-efficiency bag-filter fiber determinator and fat determinator in China.

  • 08-18 2010 +Read More
    August 18th

    Sonnen won the innovation fund from China National Science and Technology Department.

  • 04-20 2009 +Read More
    April 20th

    Sonnen resolved another worldwide problem that the apparatus recycling rate of the high nitrogen chemical product was always under requirement.

  • 12-10 2008 +Read More
    December 10th

    Sonnen successfully resolved the worldwide problem that the chemical nitrate nitrogen could not be automatically detected by any apparatus, and was invited to participate the draft of the related international standard.

  • 11-06 2008 +Read More
    November 6th

    Sonnen was invited to participate the establishing of China’s National Standard GB/T22923-2008 for the Determination Method of Chemical Fertilizer.

  • 09-19 2008 +Read More
    September 19th

    Sonnen won the competition of the determination comparison with the import apparatus, with three rounds comparative determination results of the determination recycling rate of 99.1%, 99.2% and 99.2%. While the recycling rate results of FOSS K2300 were 99.1%, 99.2% and 99.1%, results of those azotom

  • 07-24 2006 +Read More
    July 24th

    Sonnen won the National Patent of Invention for Fully Automatic Azotometer.

  • 10-21 2005 +Read More

    Sonnen won the National Patent of Utility Model for Fully Automatic Azotometer.

  • 05-24 2005 +Read More

    Sonnen, after FOSS, Denmark, became the second in the world and the first manufacturer in China, who successfully manufactured the fully automatic azotometer, using the color sensor to determine the end of tiltration.

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