environmental acoustics News

  • Casella’s CEL-120 acoustic calibrator achieves Germany`s PTB approval

    Casella CEL (www.casellameasurement.com; 01234 844100) - leading global specialist in industrial hygiene and occupational health monitoring equipment - has announced that its compact CEL-120 acoustic calibrator has recently achieved Physikalisch-Technische Bundesanstalt (PTB) approval.   The PTB is Germany’s National Institute for ...


    By Casella

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