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Chematest 42
Monitor AMI Trides
Monitor AMI Trides compact version AC
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Turbidity calibration standard: 20 NTU/FNU
Description
The calibration standard 20 NTU/FNU is a stabilized formazine solution, which is used to calibrate nephelometers measuring according to ISO 7027, EPA 180.1 or analog methods or to verify the accuracy of such instruments.
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